On August 22, a Bitcoin enthusiast anonymously embedded a 255-byte message within block 963,629, introducing a wallet challenge that purportedly derives its private key material from Satoshi Nakamoto’s Genesis Block.
Summary
- The 255-byte message in Bitcoin block 963,629 outlines a security puzzle linked to a Genesis Block wallet that intentionally has low entropy.
- The 500-byte transaction incurred a fee of 250 satoshis, amounting to 0.60 satoshis per virtual byte.
- The unknown creator asserts that all necessary components to reconstruct the wallet are found within Bitcoin’s Genesis Block.
- Galaxy Research has identified the transaction, yet the identity of its creator and the method of derivation remain unverified.
- At this time, no confirmed evidence indicates that the puzzle has been solved or that the associated reward has been transferred.
On August 23, Galaxy Research pinpointed the transaction. Confirmation from independent block data reveals Foundry USA mined block 963,629 at around 19:45 UTC on August 22. Thus, it is part of Bitcoin’s confirmed transaction ledger.
The message does not disclose the identity of the creator, the method of derivation, or a complete solution to the puzzle. At the time of reporting, there was no verified evidence indicating that anyone had figured out the puzzle or claimed the associated reward.
Bitcoin puzzle message highlights low-entropy challenge
This transaction includes a human-readable message in an OP_RETURN output, where the author stated:
“I devised a Bitcoin puzzle using elements within the Genesis Block established by Satoshi to create the wallet.”
The creator mentioned that the entropy associated with the wallet was “extremely low,” adding that no private backup was necessary since “everything required was already in the Genesis Block.” These assertions come from the anonymous author and do not clarify how the wallet was actually generated.
Entropy is a measure of randomness used during the creation of private keys. A secure wallet needs to be generated from a sufficiently broad and unpredictable range of values. If a wallet is created from well-known public data, it risks potential exploitation by attackers who could replicate the exact selection, arrangement, and transformation methods.
Block 963,629 permanently records the puzzle
The transaction size was 500 bytes with a miner fee of 250 satoshis. This means the fee rate was 0.60 satoshis per virtual byte, making it relatively inexpensive to publish the on-chain message.
The 255-byte payload constituted more than half the transaction’s total size, leading Galaxy Research to label it an “oversized OP_RETURN.” This term refers to its atypical size compared to standard data outputs, not implying any violation of Bitcoin’s consensus rules.
OP_RETURN enables users to create unspendable outputs that carry any arbitrary information. In past discussions, crypto.news has detailed how users have embedded permanent messages within blockchain transactions, including tributes, political commentary, and timestamped documentation.
Once confirmed, the textual puzzle became an inseparable part of Bitcoin’s transaction history. However, embedding a claim on-chain only confirms the existence of the message at that time; it does not validate every claim made within it.
Genesis Block provides various potential inputs
Satoshi Nakamoto mined the Genesis Block, known as block zero, on January 3, 2009. Its hash is 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f.
This block includes a timestamp, nonce, Merkle root, public key, and the famous newspaper headline: “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks.” Any of these values may play a role in the puzzle’s key-generation process.
Blockstream’s technical reference notes the Genesis Block’s timestamp as 1231006505 and its nonce as 2083236893. Since this information is publicly available, solvers can replicate it, although they still need to discern which data the creator utilized and how it was transformed.
This puzzle should not be confused with the original 50 BTC subsidy of the Genesis Block. Those coins remain unspendable because they were not included in the spendable output set of the initial Bitcoin implementation.
Solvers still require the key derivation method
The next confirmable advancement would involve an outgoing transaction signed by the private key of the puzzle’s wallet. Such a transaction could demonstrate that someone discovered the correct key, although it could also arise from the original creator.
At the time of disclosure, Galaxy Research had yet to identify the author or release a verified solution. The on-chain message does not substantiate that the creator recovered forgotten Satoshi code, as initially suggested.
Until evidence of a valid transaction or signed proof appears, this event remains a recently unveiled Bitcoin puzzle based on publicly accessible Genesis Block data, rather than a decoded secret from Satoshi Nakamoto.