Andreas Antonopoulos - WikiMili, The Free Encyclopedia

O Bitcoin (Brasil)

O [bitcoin](http://en.wikipedia.org/wiki/Bitcoin) ([2009, paper técnico](https://bitcoin.org/bitcoin.pdf)) funciona principalmente como um dinheiro digital. Com aceitação mundial (Dell, Microsoft, Overstock etc.) o bitcoin tem características que faz dele uma excelente forma de armazenamento e transferência de valor. > “**[Bitcoin] é a Internet do dinheiro**; não é apenas um dinheiro para a Internet. [...]” *Andreas Antonopoulos*
[link]

Bitcoin Newcomers FAQ - Please read!

Welcome to the /Bitcoin Sticky FAQ

You've probably been hearing a lot about Bitcoin recently and are wondering what's the big deal? Most of your questions should be answered by the resources below but if you have additional questions feel free to ask them in the comments.
It all started with the release of the release of Satoshi Nakamoto's whitepaper however that will probably go over the head of most readers so we recommend the following videos for a good starting point for understanding how bitcoin works and a little about its long term potential:
Some other great resources include Lopp.net, the Princeton crypto series and James D'Angelo's Bitcoin 101 Blackboard series.
Some excellent writing on Bitcoin's value proposition and future can be found at the Satoshi Nakamoto Institute.
Some Bitcoin statistics can be found here and here. Developer resources can be found here. Peer-reviewed research papers can be found here.
Potential upcoming protocol improvements and scaling resources here and here.
The number of times Bitcoin was declared dead by the media can be found here (LOL!)

Key properties of Bitcoin

Where can I buy bitcoins?

Bitcoin.org and BuyBitcoinWorldwide.com are helpful sites for beginners. You can buy or sell any amount of bitcoin (even just a few dollars worth) and there are several easy methods to purchase bitcoin with cash, credit card or bank transfer. Some of the more popular resources are below, also check out the bitcoinity exchange resources for a larger list of options for purchases.
Here is a listing of local ATMs. If you would like your paycheck automatically converted to bitcoin use Bitwage.
Note: Bitcoins are valued at whatever market price people are willing to pay for them in balancing act of supply vs demand. Unlike traditional markets, bitcoin markets operate 24 hours per day, 365 days per year. Preev is a useful site that that shows how much various denominations of bitcoin are worth in different currencies. Alternatively you can just Google "1 bitcoin in (your local currency)".

Securing your bitcoins

With bitcoin you can "Be your own bank" and personally secure your bitcoins OR you can use third party companies aka "Bitcoin banks" which will hold the bitcoins for you.
Note: For increased security, use Two Factor Authentication (2FA) everywhere it is offered, including email!
2FA requires a second confirmation code to access your account making it much harder for thieves to gain access. Google Authenticator and Authy are the two most popular 2FA services, download links are below. Make sure you create backups of your 2FA codes.
Google Auth Authy OTP Auth
Android Android N/A
iOS iOS iOS

Watch out for scams

As mentioned above, Bitcoin is decentralized, which by definition means there is no official website or Twitter handle or spokesperson or CEO. However, all money attracts thieves. This combination unfortunately results in scammers running official sounding names or pretending to be an authority on YouTube or social media. Many scammers throughout the years have claimed to be the inventor of Bitcoin. Websites like bitcoin(dot)com and the btc subreddit are active scams. Almost all altcoins (shitcoins) are marketed heavily with big promises but are really just designed to separate you from your bitcoin. So be careful: any resource, including all linked in this document, may in the future turn evil. Don't trust, verify. Also as they say in our community "Not your keys, not your coins".

Where can I spend bitcoins?

Check out spendabit or bitcoin directory for millions of merchant options. Also you can spend bitcoin anywhere visa is accepted with bitcoin debit cards such as the CashApp card. Some other useful site are listed below.
Store Product
Gyft Gift cards for hundreds of retailers including Amazon, Target, Walmart, Starbucks, Whole Foods, CVS, Lowes, Home Depot, iTunes, Best Buy, Sears, Kohls, eBay, GameStop, etc.
Spendabit, Overstock and The Bitcoin Directory Retail shopping with millions of results
ShakePay Generate one time use Visa cards in seconds
NewEgg and Dell For all your electronics needs
Bitwa.la, Coinbills, Piixpay, Bitbill.eu, Bylls, Coins.ph, Bitrefill, LivingRoomofSatoshi, Coinsfer, and more Bill payment
Menufy, Takeaway and Thuisbezorgd NL Takeout delivered to your door
Expedia, Cheapair, Destinia, Abitsky, SkyTours, the Travel category on Gyft and 9flats For when you need to get away
Cryptostorm, Mullvad, and PIA VPN services
Namecheap, Porkbun Domain name registration
Stampnik Discounted USPS Priority, Express, First-Class mail postage
Coinmap and AirBitz are helpful to find local businesses accepting bitcoins. A good resource for UK residents is at wheretospendbitcoins.co.uk.
There are also lots of charities which accept bitcoin donations.

Merchant Resources

There are several benefits to accepting bitcoin as a payment option if you are a merchant;
If you are interested in accepting bitcoin as a payment method, there are several options available;

Can I mine bitcoin?

Mining bitcoins can be a fun learning experience, but be aware that you will most likely operate at a loss. Newcomers are often advised to stay away from mining unless they are only interested in it as a hobby similar to folding at home. If you want to learn more about mining you can read more here. Still have mining questions? The crew at /BitcoinMining would be happy to help you out.
If you want to contribute to the bitcoin network by hosting the blockchain and propagating transactions you can run a full node using this setup guide. If you would prefer to keep it simple there are several good options. You can view the global node distribution here.

Earning bitcoins

Just like any other form of money, you can also earn bitcoins by being paid to do a job.
Site Description
WorkingForBitcoins, Bitwage, Cryptogrind, Coinality, Bitgigs, /Jobs4Bitcoins, BitforTip, Rein Project Freelancing
Lolli Earn bitcoin when you shop online!
OpenBazaar, Purse.io, Bitify, /Bitmarket, 21 Market Marketplaces
/GirlsGoneBitcoin NSFW Adult services
A-ads, Coinzilla.io Advertising
You can also earn bitcoins by participating as a market maker on JoinMarket by allowing users to perform CoinJoin transactions with your bitcoins for a small fee (requires you to already have some bitcoins.

Bitcoin-Related Projects

The following is a short list of ongoing projects that might be worth taking a look at if you are interested in current development in the bitcoin space.
Project Description
Lightning Network Second layer scaling
Blockstream, Rootstock and Drivechain Sidechains
Hivemind and Augur Prediction markets
Tierion and Factom Records & Titles on the blockchain
BitMarkets, DropZone, Beaver and Open Bazaar Decentralized markets
JoinMarket and Wasabi Wallet CoinJoin implementation
Coinffeine and Bisq Decentralized bitcoin exchanges
Keybase Identity & Reputation management
Abra Global P2P money transmitter network
Bitcore Open source Bitcoin javascript library

Bitcoin Units

One Bitcoin is quite large (hundreds of £/$/€) so people often deal in smaller units. The most common subunits are listed below:
Unit Symbol Value Info
bitcoin BTC 1 bitcoin one bitcoin is equal to 100 million satoshis
millibitcoin mBTC 1,000 per bitcoin used as default unit in recent Electrum wallet releases
bit bit 1,000,000 per bitcoin colloquial "slang" term for microbitcoin (μBTC)
satoshi sat 100,000,000 per bitcoin smallest unit in bitcoin, named after the inventor
For example, assuming an arbitrary exchange rate of $10000 for one Bitcoin, a $10 meal would equal:
For more information check out the Bitcoin units wiki.
Still have questions? Feel free to ask in the comments below or stick around for our weekly Mentor Monday thread. If you decide to post a question in /Bitcoin, please use the search bar to see if it has been answered before, and remember to follow the community rules outlined on the sidebar to receive a better response. The mods are busy helping manage our community so please do not message them unless you notice problems with the functionality of the subreddit.
Note: This is a community created FAQ. If you notice anything missing from the FAQ or that requires clarification you can edit it here and it will be included in the next revision pending approval.
Welcome to the Bitcoin community and the new decentralized economy!
submitted by BitcoinFan7 to Bitcoin [link] [comments]

How to securely store Aurei

How to securely store Aurei

https://preview.redd.it/1bcmh50h1se51.png?width=3000&format=png&auto=webp&s=f8c18ab36e0cbe338ec62a90171cbce94a89b588
The concept of cryptocurrency, operating without a banking system as a third party to transfer and secure funds, requires owners to secure their assets by themselves.
“Your keys, your bitcoin, not your keys, not your bitcoin” -Andreas Antonopoulos
When you have control of a private key you possess the power to make a transaction and spend the holdings attached to that wallet.
Aurei is a cryptocurrency that runs on the ERC20 protocol. This means that it is generated and transferred using the Ethereum blockchain and can be safely stored in all Ethereum wallets. Many storage solutions exist today and are still confronted by 2 major concepts:
>> security versus market access
Secure your Aurei’s with cold storage solutions
Known to be the most secure, wallets using cold storage are by design disconnected from the internet, assuming that there is no risk 0 in terms of hacking if your private key is stored on a connected device (computer, smartphone). In this category, Hardware wallets such as Ledger and Trezor are the most advanced devices and guarantee an optimal level of security while preserving easy access to your funds.
How to store Aurei on Ledger ?
Aurei is natively integrated in all Ledger devices, without using third party applications such as MyEtherWallet. You can easily receive and send Aurei from your ethereum account and display the value of your assets in the Ledger live application like any other cryptocurrency supported by Ledger. Learn more about how to manage ERC20 token on Ledger

https://preview.redd.it/8r84o1gh0se51.png?width=1366&format=png&auto=webp&s=cc169ec4bd33ee6ca801d82ce7bca20413b8f068
How to store Aurei on Trezor ?
Every ERC20 token can be stored using Trezor devices. Even though Aurei is currently not fully integrated in Trezor Wallet, it can be safely used with Trezor Beta Wallet and certain third-party wallets and services, including MyEtherWallet and MyCrypto. For more information about ERC20 on TREZOR

https://preview.redd.it/i73p0mpk0se51.png?width=1166&format=png&auto=webp&s=f6678e1ff23aaf3d28e19c4c8314bf71bf6873c3
Secure your Aurei’s with hot storage wallets
Desktop and mobile wallets are an easy way to access your funds quickly and simply. Unlike cold storage wallets, they are by design connected to the Internet and therefore present a risk of hacking if malware is present on your device. Keep in mind that hot storage is not a long-term solution to secure your funds, so we recommend using hardware wallets if you don’t need to constantly transfer your funds to other wallets.
Facilitate the market access by keeping your Aurei’s on exchanges
Of course, the only way to trade Aurei is to store your assets in a crypto-exchange like Liquid or P2PB2B. In this case, you are not in possession of your private key. Exchanges store them for you to allow buy and sell transactions without using blockchain transfer, reducing the cost of transactions and the security of your assets at same time. In recent years, most crypto exchanges have been targeted by hackers because they store large amounts of cryptocurrency on behalf of their customers. The best practice is to keep on an exchange only the amount of assets you wish to trade in the short term and store the rest on a hardware wallet such as Ledger or Trezor.
Conclusion
There is no security method that combines both security and simple market access. A compromise between the two is the best solution: keep the funds you wish to hold on a cold storage system and send only what you intend to trade or spend on an exchange or wallet using hot storage.
Keeping your private keys in a safe place and not sharing them with anyone is the first rule to follow for a successful investment.
Join the Aurei Community
Twitter : @ AureiCommunity
Instagram : @ aureicrypto
Telegram : https://t.me/aureicommunity

Learn more about Aurei

www.aurei-crypto.io
https://medium.com/@aureicom/investing-in-gold-bitcoin-or-aurei-thats-the-question-13712ae64f33
https://medium.com/@aureicom/a-monetary-creation-revolution-fe3a23d29be7
https://medium.com/@aureicom/what-is-aurei-ad9b334764f1
https://medium.com/@aureicom/aureis-association-dafaa90dff2a
https://medium.com/@aureicom/a-new-era-of-minting-process-by-aurei-90097abafce5
https://medium.com/@aureicom/aurei-a-revolution-in-the-crypto-world-45238d0b5cb1
https://medium.com/@aureicom/the-token-design-by-aurei-dd9861d8ca27
https://medium.com/@aureicom/aureis-vision-52803ebaecc1
https://medium.com/@aureicom/the-aureis-oracle-one-more-proof-of-trust-fd891acbd516
https://medium.com/@aureicom/design-of-a-new-economic-incentive-by-aurei-854de5a520ca

Where can I find Aurei ?

You can find Aurei on Liquid.com, the world’s most comprehensive and secure trading platform
You can also trade Aurei on P2pB2b
submitted by AureiCom to u/AureiCom [link] [comments]

Blockchain in the Public Sector – Webcast Q&A

Blockchain in the Public Sector – Webcast Q&A
Link to our website: https://block.co/blockchain-in-the-public-sector-webcast-qa/
Block.co fourth webcast titled "Digital Transformation of the Public Sector & The Upcoming Legislation of Blockchain Technology in Cyprus” was an immense success. We gathered some of the best experts in the field, Deputy Minister Kyriacos Kokkinos, Jeff Bandman, Steve Tendon, and Christiana Aristidou to share their experience and discuss with us the latest updates regarding Blockchain in the Public Sector.
In its fourth series of webcasts, Block.co gathered 281 people watching the event from 41 different countries, for a two-hour webcast where guests answered participants’ questions. Following the impressive outcome and response we received from the audience, Block.co’s team has done its best to address all the questions for which public information is available.
Below is a list of the questions that were made and were not answered due to time constraints during the webcast. For the remaining questions from our audience, the team will reach out to our distinguished guests to receive their comments and feedback. Please note, that the below information is only for informational purposes!
Question 1:
How can asset tracing be accomplished with bitcoins and cryptocurrency? And how can this be regulated?
Block.co Team Answer:
Digital Asset tracing may be accomplished with cryptocurrency intelligence solutions such as Cipher Trace and the ICE cryptocurrency intelligence program. FATF (Financial Action Task Force) embarked on a program of work from summer 2018 to June 2019 to strengthen and update the provisions dealing with virtual assets and virtual asset service providers. FATF updated Recommendations in October 2018 and Guidance in June 2019 include several new obligations that apply to VASPs. The so-called “Travel Rule” FATF announced in October 2019 agreed on the assessment criteria for how it will assess countries’ compliance with the new global standards. Under the Travel Rule, the transmitter’s financial institutions must include and send information in the transmittal order such as Information about the identity, name, address, and account number of the sender and its financial institution Information about the identity, name, address and account number of the recipient. The ”Travel Rule” is effectively being applied to cryptoasset transfers when there is a virtual asset service provider (VASP) involved. The scope of focus has broadened from “convertible” virtual assets to any virtual asset. Countries should make sure businesses can freeze crypto wallet or exchange accounts for sanctioned individuals.
Question 2:
Which kind of software or technical knowledge is required to develop cryptocurrency?
Block.co Team Answer:
It depends on the type of cryptocurrency you wish to create, as well as the preferred functionality and features, and characteristics of the token or coin (i.e. will it be pre-mined, what type of hashing or cryptographic algorithm will be used (i.e. proof of work (POW) or proof of stake (POS) or a hybrid of both), etc. Likewise, it is useful to utilize a programming language that is broadly used and supported by a vast and active development community; more data could be found here: more information could be found here: top programming languages in 2015/2016, published by IEEE here, and TIOBE. Hypothetically, you can utilize any programming language to make cryptocurrency digital money, however, the most widely recognized are C, C++, Java, Python, Perl. The beauty of cryptocurrencies is that you can literally have access to the entire Bitcoin and Ethereum open-source programming scripts, and create your alternate coin (altcoin).
Question 3:
Hello all, I want to know about the current status of the European Union Blockchain initiative in currency or public identity.
Block.co Team Answer:
Please refer to the European Services Blockchain Infrastructure (EBSI) website.
Question 4:
Mining is also the process of confirmation of transactions in the Bitcoin Blockchain. What is the process of confirmation of transactions in the Blockchain of an Organization? How do we call it?
Block.co Team Answer:
That would depend on the specific consensus algorithm used for the confirmation of transactions. The consensus algorithm is part of the blockchain protocol that defines the rules on how consensus is reached on that blockchain. In order to participate, entities on the blockchain must obey and follow the same consensus algorithm. Make sure to check our glossary for more information.
Question 5:
How does a small business implement blockchain into its current non-blockchain software systems? Who do they hire to install it?
Block.co Team Answer:
It is easy when there are APIs to connect the various software. For more information, you can check Block.co API.
Question 6:
What is your opinion on digitizing developing economies like India by using AI and blockchain?
Block.co Team Answer:
Watch a very interesting webinar on the matter by Mr. Prasanna:
Question 7:
Blockchain technologies have been around since 2008. What would you say has been the biggest obstacle in widespread adoption?
Block.co Team Answer:
In our opinion, the biggest obstacles are volatile cryptoasset prices, complicated UIs, undefined blockchain technology standards. Moreover, the legislation around the technologies is still now being developed and does not offer legal certainty for broader adoption.
Question 8:
Limitations to Blockchain Usability in the Public Sector?
Block.co Team Answer:
Blockchain in the Public Sector, like any other innovative concept with big potential, cannot be a solution to every problem. Users and developers are still figuring out technological and managerial challenges. From a technological perspective, some aspects such as platform scalability, validation methods, data standardization, and systems integration must still be addressed. From a managerial point of view, the questions include business model transformation, incentive structure, and transaction scale, and maturity. Read more here.
Question 9:
How can these blockchain initiatives be practical for the African context
Block.co Team Answer:
As long as the internet infrastructure is in place, these blockchain initiatives may have the same benefits for the African region.
Question 10:
What are some compelling use cases you’ve seen lately, and how do they serve to further legitimize blockchain as a solution?
Block.co Team Answer:
You can see the global trends from all around the world when it comes to further legitimization as a solution, with China leading the way. Read more here.
Question 11:
How does digital currency manage the issue of money laundering?
Block.co Team Answer:
Depends under which context you are looking at the term digital currency. A digital currency usually refers to a balance or a record stored in a distributed database, in an electronic computer database, within digital files or a stored-value card. Some examples of digital currencies are cryptocurrencies, virtual currencies, central bank digital currencies (CBDCs), and e-Cash. The Financial Action Task Force (FATF) is an intergovernmental body established in 1989 on the initiative of the G7 to develop policies to fight money laundering. Since 2001 FATF is also looking into terrorism financing. The objectives of FATF are to set standards and promote effective implementation of legal, regulatory and operational measures for combating money laundering, terrorist financing, and other related threats to the integrity of the international financial system. FATF is a “policy-making body” that works to generate the necessary political will to bring about national legislative and regulatory reforms in these areas. FATF monitors progress in implementing its Recommendations through “peer reviews” (“mutual evaluations”) of member countries. It is the global watchdog for anti-money laundering & counter-terrorist finance. In June 2019, it updated its guidance paper for Virtual Assets Service Providers (VASPs) regarding the transfer of digital assets. There was an insertion of a new interpretive note that sets out the application of the FATF Standards to virtual asset activities and service providers. To apply FATF Recommendations, countries should consider virtual assets as “property,” “proceeds,” “funds,” “funds or other assets,” or other “corresponding value.” Countries should apply the relevant measures under the FATF Recommendations to virtual assets and virtual asset service providers (VASPs). Read more about the FATF recommendations here).

https://preview.redd.it/58tt7mt1pld51.png?width=1920&format=png&auto=webp&s=d24811c4864ebf02cb9aacc8d6b877a1fbc3756b
Question 12:
To what extent can blockchain be used to improve the privacy of healthcare?
Block.co team Answer:
Please refer to our previous webcast, blog, and articles for more information.
Question 13:
What is Blockchain technology in Shipping?
Block.co team Answer:
The shipping sector has been in the hold of phony maritime institutes charging exorbitant fees via agents, issuing certificates to candidates who do not have the imperative attendance, or those candidates who just pay the fees for the course and ask for the certificate. In view of these fake accreditations, the possibility exists that someone could be harmed or killed, and we could face any number of potential ecological disasters. Having the option to easily verify the genuine origin of a certificate by an approved maritime center is foremost for shipping companies to fast-track their operation and streamline their labor.
Question 14:
Different uses of blockchain other than cryptocurrency?
Block.co team Answer:
Please refer to our blog and glossary.
Question 15:
Upcoming trends in Blockchain concerning Advertising, Marketing, and Public Relations in the Public and Private sectors.
Block.co Team Answer:
Regarding the application of blockchain technology to media copyrights, please see Block.co use case proposal during the Bloomen Ideathon.

https://preview.redd.it/48zc8j38pld51.png?width=3622&format=png&auto=webp&s=79987d1dc7eb8d0c8e32dbce8680b17801d0d244
Question 16:
How to create a decentralized blockchain?
Block.co Team Answer:
An excessive number of individuals feel that blockchain is some supernatural innovation that makes up a decentralized system. In truth, this innovation only enables decentralization. Which means, it permits cryptocurrency to work in a decentralized way. Yet, it doesn’t give any guarantees that it will work that way. Along these lines, it’s really, some outer variables that decide genuine decentralization. Technology, itself never really guarantees it. That is the reason it’s a mistake to expect that if it’s a blockchain — it’s decentralized. From a technical perspective, both blockchains, centralized, and decentralized are comparative, as they take work on distributed peer to peer to network. This implies every node is individually responsible to verify and store the shared ledger. Both Blockchains utilize either a proof-of-work or proof-of-stake mechanisms to make a solitary record and they have to give upper and lower limits on the security and productivity of the system. For more information please refer to our infographic.
Question 17:
Dubai government Blockchain implementation progress?
Block.co Team Answer:
You can see more information here.
Question 18:
How Blockchain and IoT can be integrated to secure data being transmitted through IoT devices.
Block.co Team Answer:
You can read more about it here.
Question 19:
How can the Nigerian government use Blockchain to effectively implement its existing launched eGovernment master plan?
Block.co Team Answer:
Perhaps it can draw its attention to the initiatives of Dubai, Estonia, and Malta to prepare an implementation framework.
Question 20:
What impact is blockchain going to have in today world of business especially in the financial sector
Block.co Team Answer:
Please refer to our recent article titled Benefits of Blockchain Technology in the Banking Industry.
Question 21:
Is Blockchain Technology affect individuals?
Block.co Team Answer:
The social effect of blockchain innovation has just started to be acknowledged and this may simply be a hint of something larger. Cryptocurrencies have raised questions over financial services through digital wallets, and while considering that there are in excess of 3,5 billion individuals on the planet today without access to banking, such a move is surely impactful. Maybe the move for cryptocurrencies will be simpler for developing nations than the process of fiat cash and credit cards. It is like the transformation that developing nations had with mobile phones. It was simpler to acquire mass amounts of mobile phones than to supply another infrastructure for landlines telephones. In addition to giving the underprivileged access to banking services, greater transparency could also raise the profile and effectiveness of charities working in developing countries that fall under corrupt or manipulative governments.
An expanded degree of trust in where the cash goes and whose advantages would without a doubt lead to expanded commitments and backing for the poor in parts of the world that are in urgent need of help. Blockchain technology is well placed to remove the possibility of vote-apparatus and the entirety of different negatives related to the current democratic procedure. Obviously, with new innovation, there are new obstacles and issues that will arise, yet the cycle goes on and those new issues will be comprehended with progressively modern arrangements. A decentralized record would give the entirety of the fundamental information to precisely record votes on an anonymous basis, and check the exactness and whether there had been any manipulation of the voting procedure.
Question 22:
As Andreas Antonopoulos often says in his MOOC: ”is a blockchain even needed?” Ie. Are there better methods?
Block.co Team Answer:
In combination with nascent technologies, IoT, distributed computing, and distributed ledger technologies, governments can provide inventive services and answers for the citizens and local municipalities. Blockchain can provide the component to create a safe framework to deal with these functions. In particular, it can provide a safe interoperable infrastructure that permits all smart city services and capacities to work past presently imagined levels. On the off chance that there were better techniques, they would be researched.
Question 23:
Would any of this be also applicable to the educational sector (as part of the general public sector), and if so in which way?
Block.co Team Answer:
Yes, please refer to our Webcast on Education and our blog post.
Question 24:
Will we be able to get a hold of this recording upon completion of the meeting?
Block.co Team Answer:
Yes, here is a link to the recording of our webcast Blockchain in the Public Sector.
Question 25:
Was wondering if there are any existing universal framework in governing the blockchain technology?
Block.co Team Answer:
The short answer is NO, as this framework is currently being prepared in collaboration with the various Member States.
We would like to thank everyone for attending our webcast and hoping to interact with you in future webinars. If you would like to watch the webinar again, then click here!
For more info, contact Block.co directly or email at [[email protected]](mailto:[email protected]).
Tel +357 70007828
Get the latest from Block.co, like and follow us on social media:
✔️Facebook
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✔️Reddit
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submitted by BlockDotCo to u/BlockDotCo [link] [comments]

Starting my bit coin journey! Need help.

Any great places to start any good books to read. I need any tips (pause) to put me on the right track.
submitted by Chrislaw101 to Bitcoin [link] [comments]

r/Bitcoin recap - July 2019

Hi Bitcoiners!
I’m back with the 31st monthly Bitcoin news recap.
For those unfamiliar, each day I pick out the most popularelevant/interesting stories in Bitcoin and save them. At the end of the month I release them in one batch, to give you a quick (but not necessarily the best) overview of what happened in bitcoin over the past month.
You can see recaps of the previous months on Bitcoinsnippets.com
A recap of Bitcoin in July 2019
Adoption
Development
Security
Mining
Business
Education
Regulation & Politics
Archeology (Financial Incumbents)
Price & Trading
Fun & Other
submitted by SamWouters to Bitcoin [link] [comments]

/r/Bitcoin FAQ - Newcomers please read

Welcome to the /Bitcoin Sticky FAQ

You've probably been hearing a lot about Bitcoin recently and are wondering what's the big deal? Most of your questions should be answered by the resources below but if you have additional questions feel free to ask them in the comments.
The following videos are a good starting point for understanding how bitcoin works and a little about its long term potential:
For some more great introductory videos check out Andreas Antonopoulos's YouTube playlists, he is probably the best bitcoin educator out there today. Also have to give mention to James D'Angelo's Bitcoin 101 Blackboard series. Lots of additional video resources can be found at the videos wiki page or /BitcoinTV.
Key properties of bitcoin
Some excellent writing on Bitcoin's value proposition and future can be found here. Bitcoin statistics can be found here, here and here. Developer resources can be found here and here. Peer-reviewed research papers can be found here. The number of times Bitcoin was declared dead by the media can be found here. Scaling resources here, and of course the whitepaper that started it all.

Where can I buy bitcoins?

BuyBitcoinWorldwide.com and Howtobuybitcoin.io are helpful sites for beginners. You can buy or sell any amount of bitcoin and there are several easy methods to purchase bitcoin with cash, credit card or bank transfer. Some of the more popular resources are below, also, check out the bitcoinity exchange resources for a larger list of options for purchases.
Bank Transfer Credit / Debit card Cash
Coinbase Coinbase LocalBitcoins
Gemini Bitstamp LibertyX
GDAX Bitit Mycelium LocalTrader
Bitstamp Cex.io BitQuick
Kraken CoinMama WallofCoins
Xapo BitcoinOTC
Cex.io
itBit
Bitit
Bitsquare
Here is a listing of local ATMs. If you would like your paycheck automatically converted to bitcoin use Cashila or Bitwage.
Note: Bitcoins are valued at whatever market price people are willing to pay for them in balancing act of supply vs demand. Unlike traditional markets, bitcoin markets operate 24 hours per day, 365 days per year. Preev is a useful site that that shows how much various denominations of bitcoin are worth in different currencies. Alternatively you can just Google "1 bitcoin in (your local currency)".

Securing your bitcoins

With bitcoin you can "Be your own bank" and personally secure your bitcoins OR you can use third party companies aka "Bitcoin banks" which will hold the bitcoins for you.
Android iOs Desktop
Mycelium BreadWallet Electrum
CoPay AirBitz Armory
Another interesting use case for physical storage/transfer is the Opendime. Opendime is a small USB stick that allows you to spend Bitcoin by physically passing it along so it's anonymous and tangible like cash.
Note: For increased security, use Two Factor Authentication (2FA) everywhere it is offered, including email!
2FA requires a second confirmation code to access your account, usually from a text message or app, making it much harder for thieves to gain access. Google Authenticator and Authy are the two most popular 2FA services, download links are below. Make sure you create backups of your 2FA codes.
Google Auth Authy
Android Android
iOS iOS

Where can I spend bitcoins?

A more comprehensive list can be found at the Trade FAQ but some more commons ones are below.
Store Product
Gyft Gift cards for hundreds of retailers including Amazon, Target, Walmart, Starbucks, Whole Foods, CVS, Lowes, Home Depot, iTunes, Best Buy, Sears, Kohls, eBay, GameStop, etc.
Steam, HumbleBundle, Games Planet, itch.io, g2g and kinguin For when you need to get your game on
Microsoft Xbox games, phone apps and software
Spendabit, The Bitcoin Shop, Overstock, DuoSearch, The Bitcoin Directory and BazaarBay Retail shopping with millions of results
ShakePay Generate one time use Visa cards in seconds
NewEgg and Dell For all your electronics needs
Cashila, Bitwa.la, Coinbills, Piixpay, Bitbill.eu, Bylls, Coins.ph, Bitrefill, Pey.de, LivingRoomofSatoshi, Hyphen.to, Coinsfer, GetPaidinBitcoin, Coins.co.th, More #1, #2 Bill payment
Foodler, Menufy, Takeaway, Thuisbezorgd NL, Pizza For Coins Takeout delivered to your door!
Expedia, Cheapair, Lot, Destinia, BTCTrip, Abitsky, SkyTours, Fluege the Travel category on Gyft and 9flats For when you need to get away
BoltVM, BitHost VPS service
Cryptostorm, Mullvad, and PIA VPN services
Namecheap, Porkbun For new domain name registration
Stampnik and GetUSPS Discounted USPS Priority, Express, First-Class mail postage
Reddit Gold Premium membership which can be gifted to others
Coinmap, 99Bitcoins and AirBitz are helpful to find local businesses accepting bitcoins. A good resource for UK residents is at wheretospendbitcoins.co.uk.
There are also lots of charities which accept bitcoin donations, such as Wikipedia, Red Cross, Amnesty International, United Way, ACLU and the EFF. You can find a longer list here.

Merchant Resources

There are several benefits to accepting bitcoin as a payment option if you are a merchant;
If you are interested in accepting bitcoin as a payment method, there are several options available;

Can I mine bitcoin?

Mining bitcoins can be a fun learning experience, but be aware that you will most likely operate at a loss. Newcomers are often advised to stay away from mining unless they are only interested in it as a hobby similar to folding at home. If you want to learn more about mining you can read more here. Still have mining questions? The crew at /BitcoinMining would be happy to help you out.
If you want to contribute to the bitcoin network by hosting the blockchain and propagating transactions you can run a full node using this setup guide. Bitseed is an easy option for getting set up. You can view the global node distribution here.

Earning bitcoins

Just like any other form of money, you can also earn bitcoins by being paid to do a job.
Site Description
WorkingForBitcoins, Bitwage, XBTfreelancer, Cryptogrind, Bitlancerr, Coinality, Bitgigs, /Jobs4Bitcoins, Rein Project Freelancing
OpenBazaar, Purse.io, Bitify, /Bitmarket, 21 Market Marketplaces
Watchmybit, Streamium.io, OTika.tv, XOtika.tv NSFW, /GirlsGoneBitcoin NSFW Video Streaming
Bitasker, BitforTip, WillPayCoin Tasks
Supload.com, SatoshiBox, JoyStream, File Army File/Image Sharing
CoinAd, A-ads, Coinzilla.io Advertising
You can also earn bitcoins by participating as a market maker on JoinMarket by allowing users to perform CoinJoin transactions with your bitcoins for a small fee (requires you to already have some bitcoins)

Bitcoin Projects

The following is a short list of ongoing projects that might be worth taking a look at if you are interested in current development in the bitcoin space.
Project Description
Lightning Network, Amiko Pay, and Strawpay Payment channels for network scaling
Blockstream and Drivechain Sidechains
21, Inc. Open source library for the machine payable web
ShapeShift.io Trade between bitcoins and altcoins easily
Open Transactions, Counterparty, Omni, Open Assets, Symbiont and Chain Financial asset platforms
Hivemind and Augur Prediction markets
Mirror Smart contracts
Mediachain Decentralized media library
Tierion and Factom Records & Titles on the blockchain
BitMarkets, DropZone, Beaver and Open Bazaar Decentralized markets
Samourai and Dark Wallet - abandoned Privacy-enhancing wallets
JoinMarket CoinJoin implementation (Increase privacy and/or Earn interest on bitcoin holdings)
Coinffeine and Bitsquare Decentralized bitcoin exchanges
Keybase and Bitrated Identity & Reputation management
Bitmesh and Telehash Mesh networking
JoyStream BitTorrent client with paid seeding
MORPHiS Decentralized, encrypted internet
Storj and Sia Decentralized file storage
Streamium and Faradam Pay in real time for on-demand services
Abra Global P2P money transmitter network
bitSIM PIN secure hardware token between SIM & Phone
Identifi Decentralized address book w/ ratings system
Coinometrics Institutional-level Bitcoin Data & Research
Blocktrail and BitGo Multisig bitcoin API
Bitcore Open source Bitcoin javascript library
Insight Open source blockchain API
Leet Kill your friends and take their money ;)

Bitcoin Units

One Bitcoin is quite large (hundreds of £/$/€) so people often deal in smaller units. The most common subunits are listed below:
Unit Symbol Value Info
millibitcoin mBTC 1,000 per bitcoin SI unit for milli i.e. millilitre (mL) or millimetre (mm)
microbitcoin μBTC 1,000,000 per bitcoin SI unit for micro i.e microlitre (μL) or micrometre (μm)
bit bit 1,000,000 per bitcoin Colloquial "slang" term for microbitcoin
satoshi sat 100,000,000 per bitcoin Smallest unit in bitcoin, named after the inventor
For example, assuming an arbitrary exchange rate of $500 for one Bitcoin, a $10 meal would equal:
For more information check out the Bitcoin units wiki.
Still have questions? Feel free to ask in the comments below or stick around for our weekly Mentor Monday thread. If you decide to post a question in /Bitcoin, please use the search bar to see if it has been answered before, and remember to follow the community rules outlined on the sidebar to receive a better response. The mods are busy helping manage our community so please do not message them unless you notice problems with the functionality of the subreddit. A complete list of bitcoin related subreddits can be found here
Note: This is a community created FAQ. If you notice anything missing from the FAQ or that requires clarification you can edit it here and it will be included in the next revision pending approval.
Welcome to the Bitcoin community and the new decentralized economy!
submitted by BinaryResult to Bitcoin [link] [comments]

Happy Tipping Tuesday! Now that this sub is the main Bitcoin sub in terms of activity, it's time for everyone to get some Education and some free Bitcoin. Post here and get free bits! Bitcoin Cash will defeat the legacy banking oligarch system!

As someone who cares about Liberty and freedom, I have instinctively understood the importance of Bitcoin for spreading economic freedom across the globe. Being sick of the legacy too-big-to-fail central bank fiat bailout scam systems where they print the money from thin air, I saw Bitcoin as a tool that can really liberate humanity and help us reach our ultimate potential. The fact is economic freedom improves this world, and the stakes are very large. We are fighting an oligarch banking system that prints money out of thin air, holding back humanity's potential with their scam system that only works to enslave and not liberate humanity. In the past people fought for liberty and gave their lives on bloody battlefields. Today we fight troll wars on social media, but the stakes are quite similar, if not multiplied in this new technological age. By supporting Bitcoin and Satoshi's vision of a worldwide honest cash system, its one of the only ways to help lift humanity up to our ultimate limitless potential. The oligarch's saw this threat which is why we are under heavy attacks. They stole Bitcoin and the ticker, and crippled the system with high fees, unreliable transactions, and Trojan horse tech, but Bitcoin Cash adapted, survived, and lives on as the common sense continuation of the money ledger. It turns out that its not so easy to stop an idea whose time has come.
Bitcoin Cash is the true Bitcoin that follows Satoshi's vision of common sense and on-chain scaling. BCH is The Manifestation of the Honey Badger. Trolls will point to market cap and say BCH is losing and not the real Bitcoin. However they fail to understand the nature of the war we are fighting. Bitcoin is all about breaking oligarchy, as nChain's paper explains. We are fighting against a banker oligarch takeover of Bitcoin. Since they print money from thin air, they have us outgunned when it comes to market capitalization/price. This is what the trolls do not understand. To think that the oligarch bankers that control the money monopoly would not try to attack the Bitcoin system would be naive. It appears they have pumped the BTC-Core price to outrun Bitcoin Cash the real Bitcoin as soon as their trojan segwit tech was deployed. They likely will use segwit, strangled blocks, and Lightning Network as the strangler fig to usurp the system changing it to fiat legacy banking system 2.0. What they don't want people to realize is that Bitcoin was always the underdog against fiat systems. Just because they usurped the name and BTC ticker for their fiat 2.0 system it does not mean they are winning the war. Its a clever tactic sure, but BCH is still the #1 cryptocurrency by market cap in the world, they have shifted some shells around in trickery, but Bitcoin-BCH is still fighting as the underdog against the oligarchs as it always has.
Not only this but the numerous problems in Lightning are acting as a bottleneck for development on Core. All this while BCH development is soaring with things like memo.cash, blockpress.com, cashshuffle protocol, chainbet protocol, SLP token protocol, colored coins, tokeda, and much more. Now that we have solved the scaling issue we can finally build again. All this while numerous services like Dell, Steam, Reddit, Rakuten, Stripe, Circle, Microsoft, Fiverr, Satoshidice, Changetip, Expedia, and many more stopped accepting Bitcoin Core, while Coinbase, Bitpay, coins.ph, satoshidice, tippr, purse.io, dark web all are adding BCH support.
They thought they could use censorship to shut us up. But now we are seeing that free speech is more popular than censored cult subreddits. We are battling some powerful oligarch interests. But they have vastly underestimated the spirit of the Honey Badger. There is a reason there is so much COINTELPRO trolling and dirty tricks being done to Bitcoin Cash and its supporters. There is a reason they need to use vote manipulation, shaming and bullying tactics, censorship, and dirty tricks to try to get us to shut our mouths. The truth is they are terrified of Bitcoin Cash and Satoshi's vision, which is why they need to use such tactics. They are doing whatever they can to pen the Honey Badger up in sheer desperation and terror that it will soon break loose ripping them limb from limb and devouring them whole.
I would like to mention that the recent turmoil in the BCH community over a November fork with different factions fighting each other is on a lot of people's minds. Some newbs may also be wondering about what is going on. They may be falling into the Fear Uncertainty and Doubt that is being pushed by a lot of Core trolls, as well as some genuine members of the BCH community. I would like to point out that these disputes are actually healthy. We don't want a system where one person or group controls things. We want a system where people are fighting for control. Its an economic incentive system with different factions competing. This is what keeps Bitcoin robust and was the genius of Satoshi's design. We don't need to worry about the troll wars because we have Nakamoto consensus as the whitepaper says:
They vote with their CPU power, expressing their acceptance of valid blocks by working on extending them and rejecting invalid blocks by refusing to work on them. Any needed rules and incentives can be enforced with this consensus mechanism"
Miners will decide what to support and the community should respect it. Many prominent BCH miners are also meeting in the next days to have a discussion on how to proceed with the protocol in November. The miners have put in their work and investment and have earned their right to vote on new rules. Most of us trolls have not, we are simply picketing outside the polling booth trying to influence how miners vote. They may care what the community thinks, but at the end of the day, Bitcoin is about self-interest, so they may also not necessarily care what the community thinks. Bitcoin was never designed as a democracy 1user 1 vote system as people like Core and Andreas Antonopoulos think. We should celebrate the fact that BCH has many competing implementations, compared to Core's centralized coin with BlockStream Gatekeepers. We also have miner groups challenging developers. Since the system was designed for miners to vote, this is obviously much healthier than developer dictatorships. Miners have much more skin in the game and are incentivized economically to make the right decision. Often times people forget Bitcoin is an economic incentive system.
So after getting a little bit of education, the point of this thread is to post and get free bits, especially for newbs that want to try Bitcoin for the first time. BlockStream admits BTC-Core is not for everyone. But we have news for them, BCH is for everyone!.
Post here and get some free bits. Bits is the historical unit for Bitcoin, but it also went extinct from the high fees on BTC-Legacy. Bits can only be feasible on BCH the real Bitcoin with low fees, it just doesn't work on Bitcoin-Legacy anymore. Coinbase and Bitpay had adopted bits before the fees killed it and my hope is they will embrace it for BCH again. There are 1 million bits in a BCH. If newbs have any questions please feel free to ask in the thread as well and get advice on anything, from potential coin splits, to how to use the tip bot, and withdraw to your own wallet, or other aspects about why Bitcoin-BCH is good, and why Bitcoin-BTC is so bad.
Reddit usage for tippr directions are here: https://www.reddit.com/tippwiki/reddit-usage
Information on chaintip the other tip bot is here: https://www.chaintip.org/
I suggest using the Bitcoin.com wallet for withdrawing BCH because they have BCH as default. You may also want to try the Bitpay wallet, which has some added features like a shapeshift button to change your btc-segwits into Bitcoin-BCH (bitcoin.com has this as well), as well as an amazon button to purchase amazon gift cards instantly in the BitPay app using Bitcoin. And there is a bitcoin BitPay debit card option in the app as well.
In the BitPay wallet you will need to add the BCH wallet as a second wallet as its not there by default. So press the + symbol and create new personal wallet, then choose coin BCH and back it up.
If you need to change between legacy and the new cashaddr format then use this tool: https://cashaddr.bitcoincash.org/
tippr stats are here
submitted by cryptorebel to btc [link] [comments]

Hints about what may come with the segwit bug on BTC-Core, and its connection to P2SH, which is being fixed and sunsetted on BSV.

Many have been wondering and speculating about the possible segwit bug that Craig Wright has been warning about. Well the truth is even Core devs like Peter Todd and Gregory Maxwell have admitted problems with segwit. For example the validationless mining issue is enhanced and becomes a big problem under segwit. Peter Todd wrote about the issue on the Bitcoin dev mailing list. Here is what he says about a possible nightmare scenario under segwit:

The nightmare scenario - never tested code ~never works

The obvious implementation of highly optimised mining with segregated witnesses will have the main codepath that creates blocks do no validation at all; if the current ecosystem's validationless mining is any indication the actual code doing this will be proprietary codebases written on a budget with little testing, and lots of bugs. At best the codepaths that actually do validation will be rarely, if ever, tested in production.
Secondly, as the UTXO set can be updated without the witness data, it would not be surprising if at least some of the wallet ecosystem skips witness validation.
With that in mind, what happens in the event of a validation failure? Mining could continue indefinitely on an invalid chain, producing blocks that in isolation appear totally normal and contain apparently valid transactions. It's easy to imagine this happening from an engineering perspective: a simple implementation would be to have the main mining codepaths be a separate, not-validating, process that receives "invalid block" notifications from another process containing a validating implementation of the Bitcoin protocol. If a bug/exploit is found that causes that validation process to crash, what's to guarantee that the block creation codepath will even notice? Quite likely it will continue creating blocks unabated - the invalid block notification codepath is never tested in production.
Basically it means over time, segwit could enable and cause bugs that allow invalid data to go unnoticed until it is buried deep in the chain. Once this happens what will miners do, will they abandon all their work and get rid of the invalid chain, or just allow the invalid chain to continue? This is a true nightmare scenario.
Now remember Craig and others were screaming from rooftops warning people of this before segwit was activated. This was the main reason we even split off with Bitcoin Cash to preserve the ledger and the true Bitcoin, and protect it from segwit.
Now lets talk about P2SH, which was activated in Core several years ago before segwit activated. P2SH sands for pay-to-script-hash. P2SH "allow transactions to be sent to a script hash (address starting with 3) instead of a public key hash (addresses starting with 1)". There can be many use cases for P2SH, but multi-sig is the most common use. This is sad because multi-sig could have been easily enabled on legacy type 1 addresses using known schemes like Shamir Secret Sharing inistead. When sending to an address beginning with a 3 as many exchanges and services give, you are likely sending to a multi-sig P2SH address or a segwit address. So as you can imagine, P2SH has spread and grown significantly, like a cancer on every Bitcoin ledger, including BSV. So why is this a problem? Because P2SH is not Bitcoin, its basically just segwit-lite. Andreas Antonopoulos for example tried to discredit Craig Wright's criticisms of segwit by saying the same thing would apply to P2SH:
"I disagree with Craig Wright about Segwit. The exact same risk could be said to exist with P2SH. Neither can be exploited with a 51% attack"
The truth of the matter is that P2SH and segwit are vulnerable to the same issues. However segwit makes them much much worse. This could also be why Craig is delaying the revelation of the segwit bug, because it needs to first be fixed on BSV with P2SH. BSV is planning to sunset P2SH altogether, to get rid of this cancer from the ledger. Craig even says in this video that certain things will be fixed in BitCoin and as we fixed them in BitCoin you're going to learn why they are a major problem in segwitcoin" @1:28:52 mark.
Just thinking logically, it seems he is hinting at P2SH and how it is being fixed and sunsetted in BSV. So for those doubting Craig's claims that there could be a flaw in segwit, this information may make you think twice. Segwit is not Bitcoin, P2SH is not Bitcoin, BSV is Bitcoin as Satoshi intended and soon the ledger and Core's mistakes are going to be finally fixed and we can finally start to scale worldwide.
submitted by cryptorebel to bitcoincashSV [link] [comments]

⚡ Lightning Network Megathread ⚡

Last updated 2018-01-29
This post is a collaboration with the Bitcoin community to create a one-stop source for Lightning Network information.
There are still questions in the FAQ that are unanswered, if you know the answer and can provide a source please do so!

⚡What is the Lightning Network? ⚡

Explanations:

Image Explanations:

Specifications / White Papers

Videos

Lightning Network Experts on Reddit

  • starkbot - (Elizabeth Stark - Lightning Labs)
  • roasbeef - (Olaoluwa Osuntokun - Lightning Labs)
  • stile65 - (Alex Akselrod - Lightning Labs)
  • cfromknecht - (Conner Fromknecht - Lightning Labs)
  • RustyReddit - (Rusty Russell - Blockstream)
  • cdecker - (Christian Decker - Blockstream)
  • Dryja - (Tadge Dryja - Digital Currency Initiative)
  • josephpoon - (Joseph Poon)
  • fdrn - (Fabrice Drouin - ACINQ )
  • pmpadiou - (Pierre-Marie Padiou - ACINQ)

Lightning Network Experts on Twitter

  • @starkness - (Elizabeth Stark - Lightning Labs)
  • @roasbeef - (Olaoluwa Osuntokun - Lightning Labs)
  • @stile65 - (Alex Akselrod - Lightning Labs)
  • @bitconner - (Conner Fromknecht - Lightning Labs)
  • @johanth - (Johan Halseth - Lightning Labs)
  • @bvu - (Bryan Vu - Lightning Labs)
  • @rusty_twit - (Rusty Russell - Blockstream)
  • @snyke - (Christian Decker - Blockstream)
  • @JackMallers - (Jack Mallers - Zap)
  • @tdryja - (Tadge Dryja - Digital Currency Initiative)
  • @jcp - (Joseph Poon)
  • @alexbosworth - (Alex Bosworth - yalls.org)

Medium Posts

Learning Resources

Books

Desktop Interfaces

Web Interfaces

Tutorials and resources

Lightning on Testnet

Lightning Wallets

Place a testnet transaction

Altcoin Trading using Lightning

  • ZigZag - Disclaimer You must trust ZigZag to send to Target Address

Lightning on Mainnet

Warning - Testing should be done on Testnet

Atomic Swaps

Developer Documentation and Resources

Lightning implementations

  • LND - Lightning Network Daemon (Golang)
  • eclair - A Scala implementation of the Lightning Network (Scala)
  • c-lightning - A Lightning Network implementation in C
  • lit - Lightning Network node software (Golang)
  • lightning-onion - Onion Routed Micropayments for the Lightning Network (Golang)
  • lightning-integration - Lightning Integration Testing Framework
  • ptarmigan - C++ BOLT-Compliant Lightning Network Implementation [Incomplete]

Libraries

Lightning Network Visualizers/Explorers

Testnet

Mainnet

Payment Processors

  • BTCPay - Next stable version will include Lightning Network

Community

Slack

IRC

Slack Channel

Discord Channel

Miscellaneous

⚡ Lightning FAQs ⚡

If you can answer please PM me and include source if possible. Feel free to help keep these answers up to date and as brief but correct as possible
Is Lightning Bitcoin?
Yes. You pick a peer and after some setup, create a bitcoin transaction to fund the lightning channel; it’ll then take another transaction to close it and release your funds. You and your peer always hold a bitcoin transaction to get your funds whenever you want: just broadcast to the blockchain like normal. In other words, you and your peer create a shared account, and then use Lightning to securely negotiate who gets how much from that shared account, without waiting for the bitcoin blockchain.
Is the Lightning Network open source?
Yes, Lightning is open source. Anyone can review the code (in the same way as the bitcoin code)
Who owns and controls the Lightning Network?
Similar to the bitcoin network, no one will ever own or control the Lightning Network. The code is open source and free for anyone to download and review. Anyone can run a node and be part of the network.
I’ve heard that Lightning transactions are happening “off-chain”…Does that mean that my bitcoin will be removed from the blockchain?
No, your bitcoin will never leave the blockchain. Instead your bitcoin will be held in a multi-signature address as long as your channel stays open. When the channel is closed; the final transaction will be added to the blockchain. “Off-chain” is not a perfect term, but it is used due to the fact that the transfer of ownership is no longer reflected on the blockchain until the channel is closed.
Do I need a constant connection to run a lightning node?
Not necessarily,
Example: A and B have a channel. 1 BTC each. A sends B 0.5 BTC. B sends back 0.25 BTC. Balance should be A = 0.75, B = 1.25. If A gets disconnected, B can publish the first Tx where the balance was A = 0.5 and B = 1.5. If the node B does in fact attempt to cheat by publishing an old state (such as the A=0.5 and B=1.5 state), this cheat can then be detected on-chain and used to steal the cheaters funds, i.e., A can see the closing transaction, notice it's an old one and grab all funds in the channel (A=2, B=0). The time that A has in order to react to the cheating counterparty is given by the CheckLockTimeVerify (CLTV) in the cheating transaction, which is adjustable. So if A foresees that it'll be able to check in about once every 24 hours it'll require that the CLTV is at least that large, if it's once a week then that's fine too. You definitely do not need to be online and watching the chain 24/7, just make sure to check in once in a while before the CLTV expires. Alternatively you can outsource the watch duties, in order to keep the CLTV timeouts low. This can be achieved both with trusted third parties or untrusted ones (watchtowers). In the case of a unilateral close, e.g., you just go offline and never come back, the other endpoint will have to wait for that timeout to expire to get its funds back. So peers might not accept channels with extremely high CLTV timeouts. -- Source
What Are Lightning’s Advantages?
Tiny payments are possible: since fees are proportional to the payment amount, you can pay a fraction of a cent; accounting is even done in thousandths of a satoshi. Payments are settled instantly: the money is sent in the time it takes to cross the network to your destination and back, typically a fraction of a second.
Does Lightning require Segregated Witness?
Yes, but not in theory. You could make a poorer lightning network without it, which has higher risks when establishing channels (you might have to wait a month if things go wrong!), has limited channel lifetime, longer minimum payment expiry times on each hop, is less efficient and has less robust outsourcing. The entire spec as written today assumes segregated witness, as it solves all these problems.
Can I Send Funds From Lightning to a Normal Bitcoin Address?
No, for now. For the first version of the protocol, if you wanted to send a normal bitcoin transaction using your channel, you have to close it, send the funds, then reopen the channel (3 transactions). In future versions, you and your peer would agree to spend out of your lightning channel funds just like a normal bitcoin payment, allowing you to use your lightning wallet like a normal bitcoin wallet.
Can I Make Money Running a Lightning Node?
Not really. Anyone can set up a node, and so it’s a race to the bottom on fees. In practice, we may see the network use a nominal fee and not change very much, which only provides an incremental incentive to route on a node you’re going to use yourself, and not enough to run one merely for fees. Having clients use criteria other than fees (e.g. randomness, diversity) in route selection will also help this.
What is the release date for Lightning on Mainnet?
Lightning is already being tested on the Mainnet Twitter Link but as for a specific date, Jameson Lopp says it best
Would there be any KYC/AML issues with certain nodes?
Nope, because there is no custody ever involved. It's just like forwarding packets. -- Source
What is the delay time for the recipient of a transaction receiving confirmation?
Furthermore, the Lightning Network scales not with the transaction throughput of the underlying blockchain, but with modern data processing and latency limits - payments can be made nearly as quickly as packets can be sent. -- Source
How does the lightning network prevent centralization?
Bitcoin Stack Exchange Answer
What are Channel Factories and how do they work?
Bitcoin Stack Exchange Answer
How does the Lightning network work in simple terms?
Bitcoin Stack Exchange Answer
How are paths found in Lightning Network?
Bitcoin Stack Exchange Answer
How would the lightning network work between exchanges?
Each exchange will get to decide and need to implement the software into their system, but some ideas have been outlined here: Google Doc - Lightning Exchanges
Note that by virtue of the usual benefits of cost-less, instantaneous transactions, lightning will make arbitrage between exchanges much more efficient and thus lead to consistent pricing across exchange that adopt it. -- Source
How do lightning nodes find other lightning nodes?
Stack Exchange Answer
Does every user need to store the state of the complete Lightning Network?
According to Rusty's calculations we should be able to store 1 million nodes in about 100 MB, so that should work even for mobile phones. Beyond that we have some proposals ready to lighten the load on endpoints, but we'll cross that bridge when we get there. -- Source
Would I need to download the complete state every time I open the App and make a payment?
No you'd remember the information from the last time you started the app and only sync the differences. This is not yet implemented, but it shouldn't be too hard to get a preliminary protocol working if that turns out to be a problem. -- Source
What needs to happen for the Lightning Network to be deployed and what can I do as a user to help?
Lightning is based on participants in the network running lightning node software that enables them to interact with other nodes. This does not require being a full bitcoin node, but you will have to run "lnd", "eclair", or one of the other node softwares listed above.
All lightning wallets have node software integrated into them, because that is necessary to create payment channels and conduct payments on the network, but you can also intentionally run lnd or similar for public benefit - e.g. you can hold open payment channels or channels with higher volume, than you need for your own transactions. You would be compensated in modest fees by those who transact across your node with multi-hop payments. -- Source
Is there anyway for someone who isn't a developer to meaningfully contribute?
Sure, you can help write up educational material. You can learn and read more about the tech at http://dev.lightning.community/resources. You can test the various desktop and mobile apps out there (Lightning Desktop, Zap, Eclair apps). -- Source
Do I need to be a miner to be a Lightning Network node?
No -- Source
Do I need to run a full Bitcoin node to run a lightning node?
lit doesn't depend on having your own full node -- it automatically connects to full nodes on the network. -- Source
LND uses a light client mode, so it doesn't require a full node. The name of the light client it uses is called neutrino
How does the lightning network stop "Cheating" (Someone broadcasting an old transaction)?
Upon opening a channel, the two endpoints first agree on a reserve value, below which the channel balance may not drop. This is to make sure that both endpoints always have some skin in the game as rustyreddit puts it :-)
For a cheat to become worth it, the opponent has to be absolutely sure that you cannot retaliate against him during the timeout. So he has to make sure you never ever get network connectivity during that time. Having someone else also watching for channel closures and notifying you, or releasing a canned retaliation, makes this even harder for the attacker. This is because if he misjudged you being truly offline you can retaliate by grabbing all of its funds. Spotty connections, DDoS, and similar will not provide the attacker the necessary guarantees to make cheating worthwhile. Any form of uncertainty about your online status acts as a deterrent to the other endpoint. -- Source
How many times would someone need to open and close their lightning channels?
You typically want to have more than one channel open at any given time for redundancy's sake. And we imagine open and close will probably be automated for the most part. In fact we already have a feature in LND called autopilot that can automatically open channels for a user.
Frequency will depend whether the funds are needed on-chain or more useful on LN. -- Source
Will the lightning network reduce BTC Liquidity due to "locking-up" funds in channels?
Stack Exchange Answer
Can the Lightning Network work on any other cryptocurrency? How?
Stack Exchange Answer
When setting up a Lightning Network Node are fees set for the entire node, or each channel when opened?
You don't really set up a "node" in the sense that anyone with more than one channel can automatically be a node and route payments. Fees on LN can be set by the node, and can change dynamically on the network. -- Source
Can Lightning routing fees be changed dynamically, without closing channels?
Yes but it has to be implemented in the Lightning software being used. -- Source
How can you make sure that there will be routes with large enough balances to handle transactions?
You won't have to do anything. With autopilot enabled, it'll automatically open and close channels based on the availability of the network. -- Source
How does the Lightning Network stop flooding nodes (DDoS) with micro transactions? Is this even an issue?
Stack Exchange Answer

Unanswered Questions

How do on-chain fees work when opening and closing channels? Who pays the fee?
How does the Lightning Network work for mobile users?
What are the best practices for securing a lightning node?
What is a lightning "hub"?
How does lightning handle cross chain (Atomic) swaps?

Special Thanks and Notes

  • Many links found from awesome-lightning-network github
  • Everyone who submitted a question or concern!
  • I'm continuing to format for an easier Mobile experience!
submitted by codedaway to Bitcoin [link] [comments]

/r/Bitcoin FAQ - Newcomers please read

Welcome to the /Bitcoin Sticky FAQ

You've probably been hearing a lot about Bitcoin recently and are wondering what's the big deal? Most of your questions should be answered by the resources below but if you have additional questions feel free to ask them in the comments.
Some great introductions for new users are My first bitcoin, Bitcoin explained and ELI5 Bitcoin. Also, the following videos are a good starting point for understanding how bitcoin works and a little about its long term potential:
Also have to give mention to Lopp.net, the Princeton crypto series and James D'Angelo's Bitcoin 101 Blackboard series. Some excellent writing on Bitcoin's value proposition and future can be found at the Satoshi Nakamoto Institute. Bitcoin statistics can be found here, here and here. Developer resources can be found here, here and here. Peer-reviewed research papers can be found here. Potential upcoming protocol improvements here. Scaling resources here. The number of times Bitcoin was declared dead by the media can be found here (LOL!), and of course Satoshi Nakamoto's whitepaper that started it all! :)
Key properties of bitcoin

Where can I buy bitcoins?

Bitcoin.org, BuyBitcoinWorldwide.com and Howtobuybitcoin.io are helpful sites for beginners. You can buy or sell any amount of bitcoin and there are several easy methods to purchase bitcoin with cash, credit card or bank transfer. Some of the more popular resources are below, also, check out the bitcoinity exchange resources for a larger list of options for purchases.
Bank Transfer Credit / Debit card Cash
Gemini Bitstamp LocalBitcoins
Bitstamp Bitit Mycelium LocalTrader
BitFinex Cex.io LibertyX
Cex.io CoinMama WallofCoins
Xapo Spectrocoin BitcoinOTC
Kraken Luno BitQuick
itBit
HitBTC
Bitit
Bisq (decentralized)
Luno
Spectrocoin
Here is a listing of local ATMs. If you would like your paycheck automatically converted to bitcoin use Bitwage.
Note: Bitcoins are valued at whatever market price people are willing to pay for them in balancing act of supply vs demand. Unlike traditional markets, bitcoin markets operate 24 hours per day, 365 days per year. Preev is a useful site that that shows how much various denominations of bitcoin are worth in different currencies. Alternatively you can just Google "1 bitcoin in (your local currency)".

Securing your bitcoins

With bitcoin you can "Be your own bank" and personally secure your bitcoins OR you can use third party companies aka "Bitcoin banks" which will hold the bitcoins for you.
Android iOs Desktop
Samouari BreadWallet Electrum
Another interesting use case for physical storage/transfer is the Opendime. Opendime is a small USB stick that allows you to spend Bitcoin by physically passing it along so it's anonymous and tangible like cash.
Note: For increased security, use Two Factor Authentication (2FA) everywhere it is offered, including email!
2FA requires a second confirmation code to access your account, usually from a text message or app, making it much harder for thieves to gain access. Google Authenticator and Authy are the two most popular 2FA services, download links are below. Make sure you create backups of your 2FA codes.
Google Auth Authy
Android Android
iOS iOS

Where can I spend bitcoins?

Check out spendabit or bitcoin directory for some good options, some of the more commons ones are listed below.
Store Product
Gyft Gift cards for hundreds of retailers including Amazon, Target, Walmart, Starbucks, Whole Foods, CVS, Lowes, Home Depot, iTunes, Best Buy, Sears, Kohls, eBay, GameStop, etc.
Steam, HumbleBundle, Games Planet, itch.io, g2g and kinguin For when you need to get your game on
Microsoft Xbox games, phone apps and software
Spendabit, Overstock, The Bitcoin Directory and BazaarBay Retail shopping with millions of results
ShakePay Generate one time use Visa cards in seconds
NewEgg and Dell For all your electronics needs
Bitwa.la, Coinbills, Piixpay, Bitbill.eu, Bylls, Coins.ph, Bitrefill, LivingRoomofSatoshi, Hyphen.to, Coinsfer, More #1, #2 Bill payment
Menufy, Takeaway, Thuisbezorgd NL, Pizza For Coins Takeout delivered to your door!
Expedia, Cheapair, Lot, Destinia, BTCTrip, Abitsky, SkyTours, Fluege the Travel category on Gyft and 9flats For when you need to get away
BitHost VPS service
Cryptostorm, Mullvad, and PIA VPN services
Namecheap, Porkbun For new domain name registration
Stampnik Discounted USPS Priority, Express, First-Class mail postage
Reddit Gold Premium membership which can be gifted to others
Coinmap and AirBitz are helpful to find local businesses accepting bitcoins. A good resource for UK residents is at wheretospendbitcoins.co.uk.
There are also lots of charities which accept bitcoin donations, such as Wikipedia, United Way, ACLU and the EFF. You can find a longer list here.

Merchant Resources

There are several benefits to accepting bitcoin as a payment option if you are a merchant;
If you are interested in accepting bitcoin as a payment method, there are several options available;

Can I mine bitcoin?

Mining bitcoins can be a fun learning experience, but be aware that you will most likely operate at a loss. Newcomers are often advised to stay away from mining unless they are only interested in it as a hobby similar to folding at home. If you want to learn more about mining you can read more here. Still have mining questions? The crew at /BitcoinMining would be happy to help you out.
If you want to contribute to the bitcoin network by hosting the blockchain and propagating transactions you can run a full node using this setup guide. Bitseed is an easy option for getting set up. You can view the global node distribution here.

Earning bitcoins

Just like any other form of money, you can also earn bitcoins by being paid to do a job.
Site Description
WorkingForBitcoins, Bitwage, XBTfreelancer, Cryptogrind, Bitlancerr, Coinality, Bitgigs, /Jobs4Bitcoins, Rein Project Freelancing
OpenBazaar, Purse.io, Bitify, /Bitmarket, 21 Market Marketplaces
Streamium.io, XOtika.tv NSFW, /GirlsGoneBitcoin NSFW Video Streaming
Bitasker, BitforTip Tasks
Supload.com, SatoshiBox, JoyStream, File Army File/Image Sharing
CoinAd, A-ads, Coinzilla.io Advertising
You can also earn bitcoins by participating as a market maker on JoinMarket by allowing users to perform CoinJoin transactions with your bitcoins for a small fee (requires you to already have some bitcoins)

Bitcoin Projects

The following is a short list of ongoing projects that might be worth taking a look at if you are interested in current development in the bitcoin space.
Project Description
Lightning Network, Amiko Pay, and Strawpay Payment channels for network scaling
Blockstream, Rootstock and Drivechain Sidechains
21, Inc. Open source library for the machine payable web
ShapeShift.io Trade between bitcoins and altcoins easily
Open Transactions, Counterparty, Omni, Open Assets, Symbiont and Chain Financial asset platforms
Hivemind and Augur Prediction markets
Mediachain Decentralized media library
Tierion and Factom Records & Titles on the blockchain
BitMarkets, DropZone, Beaver and Open Bazaar Decentralized markets
Samourai and Dark Wallet - abandoned Privacy-enhancing wallets
JoinMarket CoinJoin implementation (Increase privacy and/or Earn interest on bitcoin holdings)
Coinffeine and Bisq Decentralized bitcoin exchanges
Keybase and Bitrated Identity & Reputation management
Telehash Mesh networking
JoyStream BitTorrent client with paid seeding
MORPHiS Decentralized, encrypted internet
Storj and Sia Decentralized file storage
Streamium Pay in real time for on-demand services
Abra Global P2P money transmitter network
bitSIM PIN secure hardware token between SIM & Phone
Identifi Decentralized address book w/ ratings system
BitGo Multisig bitcoin API
Bitcore Open source Bitcoin javascript library
Insight Open source blockchain API
Leet Kill your friends and take their money ;)

Bitcoin Units

One Bitcoin is quite large (hundreds of £/$/€) so people often deal in smaller units. The most common subunits are listed below:
Unit Symbol Value Info
millibitcoin mBTC 1,000 per bitcoin SI unit for milli i.e. millilitre (mL) or millimetre (mm)
microbitcoin μBTC 1,000,000 per bitcoin SI unit for micro i.e microlitre (μL) or micrometre (μm)
bit bit 1,000,000 per bitcoin Colloquial "slang" term for microbitcoin
satoshi sat 100,000,000 per bitcoin Smallest unit in bitcoin, named after the inventor
For example, assuming an arbitrary exchange rate of $10000 for one Bitcoin, a $10 meal would equal:
For more information check out the Bitcoin units wiki.
Still have questions? Feel free to ask in the comments below or stick around for our weekly Mentor Monday thread. If you decide to post a question in /Bitcoin, please use the search bar to see if it has been answered before, and remember to follow the community rules outlined on the sidebar to receive a better response. The mods are busy helping manage our community so please do not message them unless you notice problems with the functionality of the subreddit. A complete list of bitcoin related subreddits can be found here
Note: This is a community created FAQ. If you notice anything missing from the FAQ or that requires clarification you can edit it here and it will be included in the next revision pending approval.
Welcome to the Bitcoin community and the new decentralized economy!
submitted by BinaryResult to Bitcoin [link] [comments]

The fungibility of Nano - is it an issue?

In a recent video (link includes timestamp) by Andreas M. Antonopoulos he gets asked to play "devils advocate", and expose some of the vulnerabilities of BitCoin that can be exploited by banks and governments to throw the system out of balance.
Antonopoulos mentions that the base-layer blockchain of BitCoin does not have sufficient privacy/anonymity functionality. He then goes on to explain how this effects the coins fungibility, and thus how "dirty BitCoins" becomes less valuable than "fresh BitCoins" straight from a new block. This is bad, because it affects the coins fungibility, which is an essential function for money.My question/concern, what is Nano doing to combat an issue like the one described in the video? Is this cause for concern, or are crypto-currencies redefining the way money works in such a way that this issue is irrelevant somehow? I'm not an economist, so I have quite a limited understanding of these things thus why I'm asking you all for opinions/knowledge/insight :-)
EDIT: Wow, lots of response in here, thanks a lot everyone for sharing your opinions/knowledge/insight!
submitted by BloodaxeNOR to nanocurrency [link] [comments]

I got fired 3 week ago and got into depression, one of my best friends is a crypto trader. Instead of feeling shitty he want to teach me everything about crypto and he said that it might help me to understand the normal 9-6 job life is not the only way. here are the tips and resources he gave me:

i’m sharing it here because i’m sure that there are other people in my situation too and it will be great if i can help you exactly like how my friend helped me.
What i’m sharing here is what i wrote on my notebook while he was pitching the basics of crypto trading, I summarized it into few lists so it will be easier for you to follow:
General tips:
  1. If your mom send you a message asking “how to buy bitcoin”? it means you need to sell yours (not to her of course :P)
  2. Don’t put all your money on the exchange (he lost in the past some money on mt.gox).
  3. If you’re too lazy to print a paper wallet or so cheap you can’t buy Trezor, so don’t cry if you make some stupid mistakes and lose your login details/ get hacked.
  4. Don’t be afraid from charts, After you will get into trading you will find technical analysis like a children’s game, you just need to look for shapes and mark a line to understand where the risk is and than use your instincts, your brain(he claimed i don’t have any) and some useful new resources (i share them later on).
  5. there is too much information, if you will try to focus everything it will kill you and you will spend most of your profits on Advil. arrange yourself a useful resources and a comfortable working environment.
  6. Listen to Lofi while you trade/make decisions.
  7. don’t join random telegram groups or pump and dump groups. no-one open a traders group and invite you just because you have a beautiful smile. 97% of them have hidden interest. Try to attend for a local bitcoin meet up in your hometown or near by and than meet REAL people and REAL traders. Ask them if they have a friends traders group and ask to join, If they don’t agree say the
Trading tips:
  1. Altcoins - Vs. Bitcoin and Vs. USD: it's important to analyse the price against Bitcoin and against USD as well. Most major altcoins have huge USD trading
  2. What goes down – does not necessarily go up again: “I’ve seen Altcoins like Aurora which came down 99.99% of its record”.
  3. Day trading is a job. Consider the time spending on it when calculating your gains and losses.
  4. Don’t put all of your eggs in one basket: Diversify your crypto portfolio, and it's not shame to hedge to cash sometimes
  5. don’t risk something you can’t afford to lose.
resources:
“Give a man a good signal and he made profit for day, Teach him how to trade and will make a profit for a day “ (I made it now… And I wonder why I got fired) :P
He shared with me many of his resources and said that I need to check them to understand which one are useful for me and which isn’t.
News & Educational Websites:
Educational, Learn about real companies that using smart contracts - https://medium.com/swarmdotmarket/5-companies-already-brilliantly-using-smart-contracts-ac49f3d5c431
BitcoinWiki* - It’s like wikipedia, but for bitcoins… https://en.bitcoin.it/wiki/Main_Page
CryptoCoinChart - a cool alternative to coinmarketcap https://cryptocoincharts.info/
ICO’s - Before investing in ICO you need to check few things:
Whitepapaer- Before you buy electronic product on Amazon do you read about it? do you do the research? Do the same when you invest in ICO. Read the Whitepaper to fully understand the idea and the potential
submitted by leftycatchersmit to CryptoCurrency [link] [comments]

Andreas Antonopoulos - Dealing with Bitcoin Haters Talking Bitcoin with Andreas Antonopoulos - Lightning, Halving, Privacy, Dollar, & Tech Andreas Antonopoulos - Talks Bitcoin, Blockchain and Beyond Introduction to Bitcoin - YouTube Andreas M Antonopoulos - What Makes Bitcoin So Unstoppable

Erik Voorhees fuhr fort, Antonopoulos zu unterstützen, indem er sagte: "Wenn Sie jemals etwas über Bitcoin gehört haben, daran teilgenommen haben oder davon profitiert haben, spenden Sie bitte an Andreas." Siehe auch auf BitcoinWiki . Bitcoin; Satoshi Nakamoto; Ressourcen . Andreas Antonopoulos offizielle Website Mastering Bitcoin by Andreas Antonopoulos is a freely-available book on Bitcoin by O'Reilly publishers, published in 2015. Mastering Bitcoin is essential reading for everyone interested in learning about bitcoin basics, the technical operation of bitcoin, or if you're building the next great bitcoin killer app or business. From using a bitcoin wallet to buy a cup of coffee, to running a ... Andreas M. Antonopoulos (born 1972) is a Greek-British [citation needed] bitcoin advocate. He is a host on the Let's Talk Bitcoin podcast and a teaching fellow for the M.Sc. Digital Currencies at the University of Nicosia. Andreas Antonopoulos - WikiMili, The Free Encyclopedia - WikiMili, The Free E Antonopoulos was an outspoken critic of the Mt. Gox trading platform as early as April 2013, calling it "a systemic risk to bitcoin, a death trap for traders and a business run by the clueless". In February 2014, following the closing of Mt. Gox, Antonopoulos published a further analysis of the collapse and its effect on the greater bitcoin ecosystem. Andreas Antonopoulos is perhaps the most competent unofficial ambassador for the Bitcoin and crypto scene. He was born in 1972 and probably one of the most prominent name in the digital trading at the moment. He obtained a degree in Computer Science, Data Communication and Distributed Computing from University College London. Later he started providing consulting services to various companies ...

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Andreas Antonopoulos - Dealing with Bitcoin Haters

Another amazing talk by Andreas Antonopoulos. This is an entry level talk about Bitcoin, not just as a form of money but more as the technological invention that is changing the world forever. In this video, Andreas Antonopoulos covers Elliptic Curve Crypto (ECC) & EC Digital Signature Algorithm (ECDSA), Key formats (hex, compressed, b58, b58check,... Like/Comment/Subscribe 😎 Sign Up For CryptoWatch! Affiliate Link: https://cryptowat.ch/account/create?t=kevinsvenson&utm_source=kevinsvenson . Become a P... Presented at the Singularity University's Innovation Partnership Program (IPP), this is an entry level talk about bitcoin by Andreas Antonopoulos. Are you a ... In this episode, I talk with the man the legend Mr Andreas M. Antonopoulos. We talk about his influences, how the aggregate decisions of humans lead to adver...

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