International payment using the radio waves


In a first, Bitcoin developers have done something amazing amid the criticism over the lightning network and issues associated with it. A team of developers has made an international payment using the radio waves on the lightning network.

Rodolfo Novak, the co-founder of the startup CoinKite sent out a Bitcoin transaction to Bloomberg columnist Elaine Ou from Toronto Canada to San Francisco, California. The current feat is quite remarkable given how dependent our current system of banking is on the internet. So, under the circumstances of an Internet shut down, you can still send or receive Bitcoin using the radio waves




With ๐Ÿงก

The First Step


“The journey of a thousand miles begins with a single step.”

Lao Tzu


The First step …๐Ÿค”๐Ÿ™„๐Ÿค” Brings me back on the memory lane… In the ancient times of 2011, when I read for the first time about this BitCorn thing…

Then, I read the WhitePaper… As much or little as I understood at the time, I had a strange Sehnsucht about it and went down the proverbial rabbit hole…



Only to discover with amazement and dismay… It’s the Moria’s Mines down here…



That’s why it’s called a DYOR universe !!!

You need to Do Your Own Research folks !

It’s the only way for an Sovereign citizen !!!

Yours trully Free Spirit





Bitcoin Tree



Plant the Seed.
Make the tree grow!
You'll never enjoy it's shadow!
But you joice knowing the next generations to come,
Will thrive under it's Legacy...





Best P2P exchange to buy/sell Bitcoin

What are Peer-to-Peer Cryptocurrency Exchanges?

P2P crypto exchanges simply remove the middlemen, the core strength of Bitcoinโ€™s design. Allowing users to buy/sell directly with each other without any trusted third-party to help carrying out transactions.

It is this ๐Ÿค“ miners strong believe and best practice that privacy and security matter, then P2P exchanges will likely be a better option than the regular exchanges for handling your cryptocurrency!

Peer-to-peer bitcoin exchanges offer anonymous ways to buy and sell Bitcoin with a wide range of payment methods.


Itโ€™s no surprise that the P2P marketplaces have grown considerably in recent years.





CypherPunk Movement

THE CYPHERPUNK MOVEMENT

Let’s make a journey back in time to see where blockchain technology and cryptocurrencies came from. It will take us back to the CypherPunk Movement starting in the 1970’s.

Cryptography for the People

Encryption was primarily used for military purposes before the 1970s. People at that time were living in an analog world. Few had computers and even fewer could imagine a technology that would connect almost every human being on the planet – the internet.

Two publications brought cryptography into the open, namely the โ€œData Encryption Standardโ€ published by the US Government, and a paper called โ€œNew Directions in Cryptographyโ€ by Dr. Whitfield Diffie and Dr. Martin Hellman, published in 1976.

Dr. David Chaum started writing on topics such as anonymous digital cash and pseudonymous reputation systems in the 1980s, such as the ones described in โ€œSecurity without Identification: Transaction Systems to make Big Brother Obsoleteโ€. This was the first step toward the digital currencies we see today.

The Cypherpunks

We walk on shoulders of Giants!
Hughes, May, Back, Finney, Gilmore, Szabo

It wasnโ€™t until 1992 that a group of cryptographers in the San Francisco Bay area started meeting up on a regular basis to discuss their work and related ideas. They built a basis for years of cryptographic research to come.

Besides their regular meetings, they also started the Cypherpunk mailing list in which they discussed many ideas including those which led to the birth of Bitcoin.

In late 1992 Eric Hughes, one of the first cypherpunks, wrote โ€œA Cypherpunkโ€™s Manifestoโ€ laying out the ideals and vision of the movement.

Note: We encourage you to read A Cypherpunkโ€™s Manifesto. The Manifesto is just as relevant today as it was in 1992. This short read takes only a few minutes of your time. Itโ€™s astonishing to see how much foresight the early members had when most people didnโ€™t even think about computers yet.


A Cypherpunksโ€™s Manifesto

An excerpt from the Manifesto:

โ€œPrivacy is necessary for an open society in the electronic age.

Privacy is not secrecy.

A private matter is something one doesnโ€™t want the whole world to know, but a secret matter is something one doesnโ€™t want anybody to know.

Privacy is the power to selectively reveal oneself to the world.โ€

โ€œPrivacy in an open society also requires cryptography.

If I say something, I want it heard only by those for whom I intend it.

If the content of my speech is available to the world, I have no privacy.

To encrypt is to indicate the desire for privacy, and to encrypt with weak cryptography is to indicate not too much desire for privacy.โ€

โ€œWe must defend our own privacy if we expect to have any.

We must come together and create systems which allow anonymous transactions to take place.

People have been defending their own privacy for centuries with whispers, darkness, envelopes, closed doors, secret handshakes, and couriers.

The technologies of the past did not allow for strong privacy, but electronic technologies do.โ€

โ€œWe the Cypherpunks are dedicated to building anonymous systems.

We are defending our privacy with cryptography, with anonymous mail forwarding systems, with digital signatures, and with electronic money.โ€


Electronic Cash

Although you might have just heard about this movement for the first time, you have most definitely benefitted from the efforts of some of their members in building Tor, BitTorrent, SSL, and PGP encryption. It should not surprise you that many concepts and ideas that originated from this group led to the emergence of cryptocurrencies.

In 1997, Dr. Adam Back created HashCash, which he proposed as a measure against spam. A little later, in 1998, Wei Dai published his idea for b-money and conceived the ideas of Proof-of-Work and Proof-of-Stake to achieve consensus across a distributed network. In 2005 Nick Szabo published a proposal for Bit Gold. There was no cap on the maximum supply but he introduced the idea to value each unit of Bit Gold by the amount of computational work that went into producing it. Although this is not how cryptocurrencies are valued, the price of production (comprised of hardware and electricity cost) plays a role in the pricing of these digital assets.

In 2008, Satoshi Nakamoto released the Bitcoin white paper, citing and building upon HashCash and b-money. Citations from his early communications and parts of his white paper, such as the following on privacy, suggest Nakamoto was close to the cypherpunk movement.

โ€œThe traditional banking model achieves a level of privacy by limiting access to information to the parties involved and the trusted third party. The necessity to announce all transactions publicly precludes this method, but privacy can still be maintained by breaking the flow of information in another place: by keeping public keys anonymous. The public can see that someone is sending an amount to someone else, but without information linking the transaction to anyone. This is similar to the level of information released by stock exchanges, where the time and size of individual trades, the โ€˜tapeโ€™, is made public, but without telling who the parties were.โ€

Technology did not enable strong privacy prior to the 20th century, but neither did it enable affordable mass surveillance. We believe in the human right to privacy and work towards enabling anyone who wishes to claim his or her privacy to do so. We see a cryptocurrency with selective privacy as a good step in the right direction of reclaiming our privacy.





Block 170 – First ever bitcoin transaction


2009-01-12 04:30
#1 bitcoin transaction

The first ever bitcoin transaction from one person to another, on 2009-01-12 at 04:30 used Pay-to-Public-Key (P2PK), when Satoshi Nakamoto sent coins to Hal Finney in Block 170.

P2PK is no longer used because it is a more expensive, less private, and less secure way of receiving bitcoin than other methods.

Pay-to-Public-Key (P2PK)
Quick facts
โ€ข Transaction:
f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16

Timestamp: โ€Ž

2009-01-12 04:30 (14 years ago)

Fee: 0 sat / $0.00

Fee rate: 0.00 sat/vB

โ€ข Details

Size : 275 B

Virtual size: โ€Ž275 vB

Weight: โ€Ž1.1 kWU

Version : 1

Locktime : 0

Transaction hex:

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

โ€ข Inputs & Outputs

P2PK: โ€Ž50.00000000 BTC

ScriptSig (ASM):

OP_PUSHBYTES_71 304402204e45e16932b8af514961a1d3a1a25fdf3f4f7732e9d624c6c61548ab5fb8cd410220181522ec8eca07de4860a4acdd12909d831cc56cbbac4622082221a8768d1d0901

ScriptSig (HEX):
47304402204e45e16932b8af514961a1d3a1a25fdf3f4f7732e9d624c6c61548ab5fb8cd410220181522ec8eca07de4860a4acdd12909d831cc56cbbac4622082221a8768d1d0901

nSequence: 0xffffffff

Previous output script:

OP_PUSHBYTES_65 0411db93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b412a3
OP_CHECKSIG

Previous output type: P2PK

P2PK: โ€Ž10.00000000 BTC

ScriptPubKey(ASM):

OP_PUSHBYTES_65 04ae1a62fe09c5f51b13905f07f06b99a2f7159b2225f374cd378d71302fa28414e7aab37397f554a7df5f142c21c1b7303b8a0626f1baded5c72a704f7e6cd84c
OP_CHECKSIG

ScriptPubKey (HEX):

4104ae1a62fe09c5f51b13905f07f06b99a2f7159b2225f374cd378d71302fa28414e7aab37397f554a7df5f142c21c1b7303b8a0626f1baded5c72a704f7e6cd84cac

Type: P2PK

P2PK: โ€Ž40.00000000 BTC

ScriptPubKey (ASM):

OP_PUSHBYTES_65 0411db93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b412a3
OP_CHECKSIG

ScriptPubKey (HEX):
410411db93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b412a3ac

Type : P2PK

50.00000000 BTC

โ€ข Details

Size: โ€Ž275 B

Virtual size: โ€Ž275 vB

Weight : 1.1 kWU

Version: โ€Ž1

Locktime: 0

Transaction hex:

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

Source: https://mempool.space/





Smart Contracts by Nick Szabo-1994


Nick Szabo

A smart contract is a computerized transaction protocol that executes the terms of a contract. The general objectives of smart contract design are to satisfy common contractual conditions (such as payment terms, liens, confidentiality, and even enforcement), minimize exceptions both malicious and accidental, and minimize the need for trusted intermediaries. Related economic goals include lowering fraud loss, arbitration and enforcement costs, and other transaction costs[1].

Some technologies that exist today can be considered as crude smart contracts, for example POS terminals and cards, EDI, and agoric allocation of public network bandwidth.

Digital cash protocols[2,3] are fine examples of smart contracts. They enable online payment while honoring the characteristics desired of paper cash: unforgeability, confidentiality, and divisibility.

When we take a second glance at digital cash protocols, considering them in the wider context of smart contract design, we see that these protocols can be used to implement a wide variety of electronic bearer securities, not just cash.

We also see that to implement a full customer-vendor transaction, we need more than just the digital cash protocol; we need a protocol that guarantees that product will be delivered if payment is made, and vice versa.

Current commercial systems use a wide variety of techniques to accomplish this, such as certified mail, face to face exchange, reliance on credit history and collection agencies to extend credit, etc.

Smart contracts have the potential to greatly reduce the fraud and enforcement costs of many commercial transactions. Digital cash protocols use several of the rich new building blocks coming out of the fields of cryptography and computer science.

Most of these components have not yet been widely exploited to facilitate contractual arrangements, but the potential is vast. These subprotocols include Byzantine agreement, symmetric and asymmetric encryption, digital signatures, blind signatures, cut & choose, bit commitment, multiparty secure computations, secret sharing, oblivious transfer, and multiparty secure computation. All of these except the first are described in [2,3].

The consequences of smart contract design on contract law and economics, and on strategic contract drafting, (and vice versa), have been little explored. As well, I suspect the possibilities for greatly reducing the transaction costs of executing some kinds of contracts, and the opportunities for creating new kinds of businesses and social institutions based on smart contracts, are vast but little explored.

The “cypherpunks”[4] have explored the political impact of some of the new protocol building blocks. The field of Electronic Data Interchange (EDI), in which elements of traditional business transactions (invoices, receipts, etc.) are exchanged electronically, sometimes including encryption and digital signature capabilities, can be viewed as a primitive forerunner to smart contracts. Indeed those business forms can provide good starting points and channel markers for smart contract designers.

One important task of smart contracts, that has been largely overlooked by traditional EDI, is communicating the semantics of the transaction to the parties involved.

There is ample opportunity in smart contracts for “smart fine print”: actions taken by the software hidden from a party to the transaction.

For example, grocery store POS machines don’t tell customers whether or not their names are being linked to their purchases in a database. The clerks don’t even know, and they’ve processed thousands of such transactions under their noses.

Thus, via hidden action of the software, the customer is giving away information they might consider valuable or confidential, but the contract has been drafted, and transaction has been designed, in such a way as to hide those important parts of that transaction from the customer.

To communicate transaction semantics well, we need good visual metaphors for the elements of the contract. These would hide the details of the protocol without surrendering control over the knowledge and execution of contract terms.

A primitive but good example is provided by the SecureMosiac software from CommerceNet. Encryption is shown by putting the document in an envelope, and a digital signature by affixing a seal onto the document or envelope. On the other hand, Mosaic servers log connections, and sometimes even transactions, without warning users — classic hidden actions.

Another area that might be considered in smart contract terms is synthetic assets[5]. These new securities are formed by combining securities (such as bonds) and derivatives (options and futures) in a wide variety of ways.

Very complex term structures for payments (ie, what payments get made when, the rate of interest, etc.) can now be built into standardized contracts and traded with low transaction costs, due to computerized analysis of these complex term structures.

Synthetic assets allow us to arbitrage the different term structures desired by different customers, and they allow us to construct contracts that mimic other contracts, minus certain liabilities.

As an example of the latter, synthetic assets have been constructed that mimic the returns of stocks in German companies, without requiring payment of the tax foreigners must pay to the German government for capital gains in German stocks.

It’s important to note that these synthetics do _not_ confer voting rights as do the originals. It might be possible to add smart contract protocols to transfer voting rights to the synthetic.

Of course, these protocols might have to be quite secure to withstand attacks from the third party jurisdiction, whose transaction cost (the tax) is being arbitraged away by the synthetic asset.

Finally, we can extend the concept of smart contracts to property. Smart property might be created by embedding smart contracts in physical objects. These embedded protocols would automatically give control of the keys for operating the property to the agent who rightfully owns that property, based on the terms of the contract.

For example, a car might be rendered inoperable unless the proper challenge-response protocol is completed with its rightful owner, preventing theft. If a loan was taken out to buy that car, and the owner failed to make payments, the smart contract could automatically invoke a lien, which returns control of the car keys to the bank. This smart lien might be much cheaper and more effective than a repo man.

Also needed is a protocol to provably remove the lien when the loan has been paid off, as well as hardship and operational exceptions. For example, it would be rude to revoke operation of the car while it’s doing 75 down the freeway.

Smart property may be a ways off, but digital cash and synthetic assets are here today, and more smart contract mechanisms are being designed. So far the design criteria important for automating contract execution have come from disparate fields like economics and cryptography, with little cross-communication: little awareness of the technology on the one hand, and little awareness of its best business uses other.

The idea of smart contracts is to recognize that these efforts are striving after common objectives, which converge on the concept of smart contracts.

Copyright (c) 1994 by Nick Szabo
permission to redistribute without alteration hereby granted

Redistributed with respect & admiration from:

https://www.fon.hum.uva.nl/rob/Courses/InformationInSpeech/CDROM/Literature/LOTwinterschool2006/szabo.best.vwh.net/smart.contracts.html

Nick Szabo is so deeply ingrained in the modern digital currency landscape that 1/1000000000000th of an Ether is called a “szabo”.





Running bitcoin – Hal Finney


Wonder In Peace Bright Mind

Join Honorary Chair Fran Finney and the Running Bitcoin Challenge Committee as we honor legendary cypher punk, Hal Finney.

This is THE EVENT that combines Hal Finney’s love of running and Bitcoin and is raising funds and awareness to help defeat ALS, which ultimately claimed his life in 2014.

You are challenged to run (or walk, roll, or hike) the equivalent of a half marathon — cumulatively or all at once — by the end of January 10, 2023.

From wherever you are, spread the word about Bitcoin, participate in a healthy activity, feel good about doing your part to defeat ALS, and start the year off right


Hal Finney, one of the earliest bitcoin contributors, died eight years ago from complications of nervous system disease amyotrophic lateral sclerosis (ALS).

His spouse, Fran Finney, is now organizing a half marathon to raise funds for ALS research via bitcoin.



The โ€œRunning Bitcoin Challengeโ€ is set to take place between Jan. 1 and Jan. 10. The timing of the occasion leads up to the anniversary of Hal Finneyโ€™s โ€œRunning bitcoinโ€ tweet, in which Finney famously disclosed he was deploying a Bitcoin node.

There is no set location โ€” participants can choose to join anywhere they wish. Players are encouraged to either run, walk, roll or hike the equivalent of a half marathon (Halโ€™s favorite distance) either in one go or over the entire 10-day period.

Donors contributing at least $100 will receive an official shirt with the half marathonโ€™s logo, while the eventโ€™s top 25 fundraisers will get a Hal Finney collectible signed by his wife.

As of Wednesday morning, the event has already managed to secure nearly $10,000 in bitcoin donations.

An advocate of cryptography and digital privacy, Finney was the recipient of the first-ever bitcoin transfer from the networkโ€™s pseudonymous creator Satoshi Nakamoto.

The bitcoin community often suspected Finney was Nakamoto, a claim he consistently denied. He reportedly found out about his condition in 2009 and decided to move away from the project.

Halโ€™s name is high in the Bitcoin pantheon as one of the first people to voice support for Satoshi Nakamotoโ€™s invention and for being the first person to receive a Bitcoin transaction from Satoshi.

He was, for a time, considered one of the top contenders on the list of potential Satoshis himself (many in blockchain who reject Dr. Craig Wrightโ€™s statements still falsely believe Finney to be Bitcoinโ€™s real creator).

Hal, who referred to himself as a โ€œcypherpunk,โ€ was a cryptographic activist who went from developing video games to working on the Pretty Good Privacy (PGP) project in the 1990s. He described his PGP work as โ€œdedicated to the goal of making Big Brother obsolete.โ€

PGP creator Phil Zimmerman hired Hal as his first employee when PGP became PGP Corporation in the early 2000s. He described Hal as a โ€œgregarious manโ€ who loved skiing and long-distance running.

Despite gradual paralysis that eventually forced him to stop working, Hal continued to code software and follow the Bitcoin project.

Almost as famous as his 2009 tweet is his โ€œBitcoin and meโ€ post on BitcoinTalk.org in March 2013, the last heโ€™d ever make.

Itโ€™s a long post, and Hal was โ€œessentially paralyzedโ€ at the time, using an eye tracker to type. Forum stats show the post has been read over 278,000 times.

โ€œWhen Satoshi announced the first release of the software, I grabbed it right away,โ€ he wrote. โ€œI think I was the first person besides Satoshi to run bitcoin. I mined block 70-something, and I was the recipient of the first bitcoin transaction when Satoshi sent ten coins to me as a test.

I carried on an email conversation with Satoshi over the next few days, mostly me reporting bugs and him fixing them.โ€

Hal himself always denied being Satoshi Nakamoto, adding later that heโ€™d sold most of the Bitcoins he mined (at pre-2014 prices) to pay for his treatments. He also mentioned putting some in a safe deposit box for his children.

โ€œAnd, of course, the price gyrations of bitcoins are entertaining to me.

I have skin in the game.

But I came by my bitcoins through luck, with little credit to me.

I lived through the crash of 2011.

So Iโ€™ve seen it before.

Easy come, easy go.โ€

Hal Finney

www.runningbitcoin.us

Admiration and great Respect


With ๐Ÿงก

Happy Holidays 2022


To all of you out there, white, black, yellow , green and avatar ๐Ÿ˜๐Ÿ˜‹๐Ÿคฃ๐Ÿ˜๐Ÿ˜‹

I wish you all Happy Holidays, Joy and Happiness, with family, friends and loved ones !!!

Remember thou, you don’t need a certain day to be good, but be good and kind All Year Around and maybe like this together the world with change…

It starts deep within, with you and me… Don’t delude yourself saying who am I ? or I’m too little to change something…

Please do remember, in 2010 there where only 2 dots… Two “insignificant” โ€ข โ€ข ‘s that mined bitcoin Satoshi Nakamoto and Hal Finney !

Take a look at the network now… Take a look at what 2 โ€ข โ€ข ‘s did ๐Ÿ™‚ ๐Ÿ˜‰

238.431 Ehash/s Total HashRate from 2 Cpu mining computers !!!

You tend to FORGET :

We Are The People !!!




Bitcoin WhitePaper Day

Bitcoin – A Peer-to-Peer
Electronic Cash System

Itโ€™s bitcoin White Paper Day.

The mailing list was hosted by Metzdow and run by a group of cypherpunks who shared ideas on creating a kind of digital currency and payment system. Satoshi shared the whitepaper in a message that read, โ€œBitcoin P2P e-cash paper,โ€ which outlined the main properties of the system.


“Bitcoin P2P e-cash paper
Satoshi Nakamoto satoshi at vistomail.com
Fri Oct 31 14:10:00 EDT 2008
Previous message: Fw: SHA-3 lounge
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
I’ve been working on a new electronic cash system that’s fully
peer-to-peer, with no trusted third party.

The paper is available at:
http://www.bitcoin.org/bitcoin.pdf

The main properties:
Double-spending is prevented with a peer-to-peer network.
No mint or other trusted parties.
Participants can be anonymous.
New coins are made from Hashcash style proof-of-work.
The proof-of-work for new coin generation also powers the
network to prevent double-spending.

Bitcoin: A Peer-to-Peer Electronic Cash System

Abstract. A purely peer-to-peer version of electronic cash would
allow online payments to be sent directly from one party to another
without the burdens of going through a financial institution.
Digital signatures provide part of the solution, but the main
benefits are lost if a trusted party is still required to prevent
double-spending. We propose a solution to the double-spending
problem using a peer-to-peer network. The network timestamps
transactions by hashing them into an ongoing chain of hash-based
proof-of-work, forming a record that cannot be changed without
redoing the proof-of-work. The longest chain not only serves as
proof of the sequence of events witnessed, but proof that it came
from the largest pool of CPU power. As long as honest nodes control
the most CPU power on the network, they can generate the longest
chain and outpace any attackers. The network itself requires
minimal structure. Messages are broadcasted on a best effort basis,
and nodes can leave and rejoin the network at will, accepting the
longest proof-of-work chain as proof of what happened while they
were gone.

Full paper at:
http://www.bitcoin.org/bitcoin.pdf

Satoshi Nakamoto

———————————————————————
The Cryptography Mailing List
Unsubscribe by sending “unsubscribe cryptography” to majordomo at metzdowd.com”


Source:
https://www.metzdowd.com/pipermail/cryptography/2008-October/014810.html


The pseudonymous Bitcoin creator disclosed that they had been working on a new electronic cash system that uses a Proof-of-Work (PoW) consensus algorithm that required no trusted third party. Although the document met mixed reactions, it was the beginning of what is known today as blockchain technology.

A couple of months after the release, the Bitcoin network was launched, with the first block mined on January 3, 2009. About eight days later, Hal Finney received the first transaction of 10 BTC from Nakamoto, after which he posted a legendary tweet that read:

In the 14 years since that day, bitcoinโ€™s value rose from zero to a peak of $68,990 last November and was hovering above $20,000 on Monday, according to CoinDesk data. The cryptocurrency currently has a market capitalization of over $390 billion. It also inspired the creation of more than 20,000 different cryptocurrencies currently in circulation, while bitcoin remains the largest by market cap.

Over the years, several people have been rumored to be Nakamoto, including early bitcoin contributor Hal Finney, cryptographer Nick Szabo, physicist Dorian Nakamoto and even Teslaโ€™s chief executive Elon Musk, who all denied the claims.

Satoshiโ€™s identity is still a mystery, but Finney was well-known for his contribution to the creation of Bitcoin. He worked hand-in-hand with Nakamoto to find and fix bugs in Bitcoinโ€™s underlying infrastructure. Before his death in 2014, Finney shared a detailed story about his journey with Bitcoin

About a year after the launch of Bitcoin, the cryptocurrency went on to record its first real-world commercial use case when a Florida man spent 10,000 BTC to purchase two large Papa Johnโ€™s pizzas on May 22, 2010.

Although the coins were worth $41 at prices back then, at todayโ€™s price, the transaction is worth more than $200 million. To commemorate the event, the Bitcoin community celebrates Bitcoin Pizza Day every year on May 22.


Bitcoin / bitcoin / blockchain