17SkEw2md5avVNyYgj6RiXuQKNwkXaxFyQ

P2PKH (1)

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Quantum exposure Reuse-exposed

P2PKH · reuse-exposed

P2PKH addresses hide the pubkey behind a SHA-256 + RIPEMD-160 hash UNTIL the first outgoing spend, which reveals it in the signature script or witness data. This address has been spent from, so its pubkey is permanently on chain. Every subsequent UTXO at this address is just as exposed as the moment of first spend.

First revealed at block 57,044 on 2010-05-22 (input_spend).

Context: Bitcoin quantum exposure report · Top exposed addresses · Quantum and Bitcoin (LearnBitcoin.com)

What we know about this address 5 findings

Jercos / Jeremy Sturdivant (Bitcoin Pizza Day recipient, 10,000 BTC)

The address that received the 10,000 BTC payment from Laszlo Hanyecz on Bitcoin Pizza Day (2010-05-22), the first known commercial Bitcoin transaction for real-world goods. Attributed to Jercos (forum handle), commonly identified as Jeremy Sturdivant, who placed the order through Papa John's on Laszlo's behalf. The address subsequently broke the 10,000 BTC into smaller chunks and forwarded them on; the trail is readable on chain via getrawtransaction.

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