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20 votes
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History behind the scripting language in Bitcoin?

Script was in the first version of Bitcoin. Satoshi developed Bitcoin in private before releasing the fully-usable Bitcoin 0.1, and he said very little about his thought-process, so we'll probably ...
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  • 8,684
18 votes

When, if ever, will "peak bitcoin" occur?

At the beginning of Bitcoin, every newly mined block (about every 10 minutes) creates 50 bitcoins. This is called the block subsidy. About every 4 years, this number cuts in half. Therefore, the peak ...
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18 votes

When, if ever, will "peak bitcoin" occur?

According to comments by the project's founder, Bitcoin's issuance rate was indeed inspired by that of precious metals. However, it is implemented algorithmically, of course, which artificially limits ...
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  • 62.5k
13 votes
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Satoshi's final statement

I've got an answer on Reddit: It's likely to have been written in a PM or an email to some developers, and it seems that Mike Hearn (BitcoinJ) was the one who published this statement: Mike Hearn -...
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9 votes
Accepted

Where did the idea of blockchain come from? Git was already using it since 2005

According to Bitcoin and Cryptocurrency Technologies (BaCT), the Princeton Bitcoin textbook, the block chain dates back to a "paper by Haber and Stornetta in 1991. Their proposal was a method for ...
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  • 62.5k
9 votes
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What is the "1 RETURN" bug?

Have a look at the early sources here: http://www.bitcointrading.com/forum/bitcoin-clients/original-bitcoin-source-code-archives/ there is a small piece of code in script.cpp: case OP_RETURN: ...
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  • 6,572
8 votes
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How did pay-to-pubkey hash come about? What is its history?

Pay to Public Key Hash has existed for the entirety of Bitcoin's life. P2PKH addresses have existed since the earliest release of Bitcoin. Creating P2PKH addresses and sending to P2PKH addresses was ...
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  • 60.6k
7 votes
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Duplicated hash values in mining reward

This is a known bug in the early days of bitcoin. Was fixed by BIP-30 https://github.com/bitcoin/bips/blob/master/bip-0030.mediawiki There is a discussion here: https://bitcointalk.org/index.php?...
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  • 106
7 votes
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What is the significance of Bitcoin Pizza Day, and when is it celebrated?

Bitcoin Pizza Day is celebrated on May 22nd. On this day in 2010, a BitcoinTalk member bought pizza in exchange for 10,000 BTC. This represents more or less the first known transaction using bitcoins ...
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6 votes
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When was the paper of bitcoin announced?

According to the mailing list archives, the mailing list received Satoshi's email at Fri Oct 31 14:10:00 EDT 2008. However the mailing list is moderated so perhaps the email was not received by ...
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  • 60.6k
6 votes
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Why does Satoshi's public key have the uid "BuZz Spacedout"

This is what I see for a search on pgp.mit.eud, which points to this key: That is a surprising result. If we download the key purported to be Nakamoto's from Bitcoin.org, we get the following ...
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6 votes
Accepted

What was the first altcoin?

Litecoin was not the first altcoin. It actually uses ideas for altcoins that precede it but had died before it was created. This is mentioned in its announcement thread on bitcointalk.. The very first ...
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  • 60.6k
6 votes

What was the longest held UTXO ever spent?

As of June 19 2019, using the following query: bitcoin-indexer=> select reverse_bytes(output_tx.hash_id || output_tx.hash_rest), output.tx_idx, output_tx.current_height, input_tx.current_height,...
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  • 281
6 votes
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Was it always required for the Coinbase transaction to be the first transaction in a block?

This is not true. Code and code comments in v0.1.5 (the oldest tagged version in git) enforce that there always is a coinbase transaction and that it must always be the first. There cannot be a ...
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  • 60.6k
6 votes
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When did the main Bitcoin client become known as Bitcoin Core? When/Why/How did this happen?

The renaming was merged in December 2013 with prior discussion on this GitHub issue. The general motivation was to distinguish between one particular implementation of the Bitcoin protocol (many refer ...
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6 votes
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Where can I find the technical discussion between Satoshi and other contributors in the sourceforge website?

Try https://satoshi.nakamotoinstitute.org I believe this group has attempted to consolidate all known messages written by Satoshi Nakamoto on their site.
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  • 4,646
5 votes

Who has named 10e-8 BTC "Satoshi"?

I'll list the mentions I've found in reverse chronological order. It first showed up on StackExchange on August 30, 2011. However, I often hear the term Satoshi as if it was a monetary unit. ...
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  • 28.6k
5 votes
Accepted

"Sipa" definition? (old terminology, circa 2011-12)

Sipa is the alias of Pieter Wuille, a Bitcoin Core developer. It just happens that he had a feature branch for the rpc command importprivkey, and people just referred to it as the "sipa" format. It's ...
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  • 15k
5 votes
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How was the dust limit of 546 satoshis was chosen? Why not 550 satoshis?

The dust limit is not actually fixed, technically - it varies based on the type of output. 546 satoshis is simply the most commonly known one, for a p2pkh output. Being the longest-lived output type, ...
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  • 16.4k
5 votes
Accepted

When did Satoshi Nakamoto release Bitcoin v.0.1 to the public? 08 Jan 09 or 09 Jan 09?

It depends on how you define release. Satoshi sent the email to the Cryptography mailing list on Jan 8 2009 UTC. However because the Cryptography mailing list is moderated, that email did not reach ...
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  • 60.6k
4 votes

Where can I find a full list of all Bitcoin mining hardware ever used?

https://en.bitcoin.it/wiki/Mining_hardware_comparison and https://en.bitcoin.it/wiki/Non-specialized_hardware_comparison are the canonical lists. I'm not sure that will be useful to you; there's ...
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  • 28.6k
4 votes

Satoshi's final statement

Ultimate necro, but it was Mike Hearn. You can find multiple emails between Satoshi Nakamoto and himself from back then at his site here: http://plan99.net/%7Emike/ The specific quote you've found is ...
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4 votes

Why does Wikipedia's Bitcoin entry imply Satoshi's whitepaper is from May 2009?

That is clearly incorrect. His whitepaper was released on October 31st, 2008 via the metzdowd mailing list Bitcoin P2P e-cash paper Satoshi Nakamoto satoshi at vistomail.com Fri Oct 31 14:10:...
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4 votes
Accepted

When did the ASIC mining era begin?

Jeff Garzik received an Avalon miner on january 30th, 2013 and posted pictures at http://garzikrants.blogspot.com/2013/01/once-upon-time-in-china-package-shipped.html and http://garzikrants.blogspot....
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  • 8,319
4 votes

Do I spare 80Gb to only keep the blockchain and do I need it to be always present?

There are different ways of interacting with Bitcoin. If you just want to make an occasional payment, and don't want to handle large sums, you'll probably be happy to run a Thin Client on your ...
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  • 62.5k
4 votes
Accepted

Was Bitcoin 0.3.7 actually hard-forking?

Yes. An invalid pair of arguments to CHECKSIG can become valid after the fork. This is because the scriptSig is evaluated too. scriptPubKey: OP_TRUE scriptSig: <sig> <pubkey> ...
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4 votes

Who first started to name 'blockchain technology' as 'blockchain'

The first use of the phrase "block chain" was by Hal Finney in his response to Satoshi's email with the whitepaper. Over time, the two words have been combined into the single word "...
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  • 60.6k
3 votes
Accepted

What is the most expensive Bitcoin purchase ever made?

I'd say it was the selling of dice gamling site SatoshiDice in 2013, according to the former owner it was sold for 126,315 BTC which was equivalent to ~$11,5 Million at that time. More details can be ...
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  • 381
3 votes

What is the most expensive Bitcoin purchase ever made?

If you mean the greatest amount of bitcoin spent, the "bitcoin pizza" comes to mind. At a whopping 10k BTC spent. Pizza for bitcoins? (bitcointalk.org)
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