The Genesis Block
Category: History and Future · Published 2026-06-30
Technically reviewed and sourced on 2026-07-03 What does this mean?
Editorial review covers clarity and neutrality. Technical, security, and source reviews indicate whether an article's material claims were checked against relevant authoritative material. A source link being available does not by itself mean every claim has been verified. A reviewed status means the article's material claims were examined; it does not mean the article is exhaustive or that future protocol, market, or software changes cannot make it outdated.
Block zero
Every blockchain starts somewhere. Bitcoin's begins with the genesis block — block 0 — mined by Satoshi Nakamoto on 3 January 2009. It's the root that every later block links back to, the foundation the entire ledger is built on. And Satoshi left a message inside it.
The hidden headline
Embedded in the genesis block's coinbase (the special first input of the block) is this line of text:
"The Times 03/Jan/2009 Chancellor on brink of second bailout for banks."
It's the front-page headline of that day's London Times. It does two things at once: it timestamps the block (proving it wasn't created earlier), and it is widely read as a pointed statement — Bitcoin appeared in the middle of a banking crisis, and many take the headline as commentary on the system being bailed out. Satoshi never explained the choice.
The 50 BTC that can never be spent
The genesis block's 50 BTC reward is, by a quirk of the original code, permanently unspendable — it isn't part of the spendable ledger like every other block's reward. The genesis reward itself can never be moved. Coins people have since sent to the address as a tribute are ordinary outputs — they could only ever be spent by whoever holds that address's private key, which is presumed inaccessible, so in practice they sit there too. A fitting monument.
The first real transaction came later
The genesis coinbase isn't a normal payment. Bitcoin's first transaction between people happened nine days later, in block 170 on 12 January 2009: Satoshi sent 10 BTC to Hal Finney. That's the moment Bitcoin first changed hands — see the fuller story in the history of Bitcoin.
Why it still matters
The genesis block is more than trivia. It's hard-coded where no one can edit it — and, for many, a reminder of the era Bitcoin emerged from. Every block your miner ever works on traces, link by link, all the way back to that first one and its quiet headline. When you point a machine at a pool, you're adding to a chain that started with a message about broken banks.
FAQ
What is the genesis block?
It's the very first block in the Bitcoin blockchain, block 0, mined by Satoshi Nakamoto on 3 January 2009. Every other block links back to it.
What message is in the genesis block?
The text 'The Times 03/Jan/2009 Chancellor on brink of second bailout for banks' — a real newspaper headline that both timestamps the block and is widely interpreted as a comment on the financial crisis of the time.
Can the genesis block's 50 BTC be spent?
No. Due to a quirk in the original software, the genesis reward is permanently unspendable. Coins later sent to the address as tribute are ordinary outputs that would require the address's private key to move; no one is known to hold it.
When was the first real Bitcoin transaction?
On 12 January 2009, in block 170, when Satoshi sent 10 BTC to Hal Finney — the first time bitcoin moved between two people.