125YehS25f8PMeqYzGEDHBd9cAP1CEPCNR

P2PKH (1)

Run validateaddress Build descriptor JSON

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 264,229 on 2013-10-17 (input_spend).

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

What we know about this address 3 findings ✓ corroborated by 2 sources

eligius reward address (coinbase-extracted)

Received block rewards as part of eligius's coinbase output across 9 block(s) between heights 263790 and 268893. Attribution derived from on-chain coinbase scriptSig tag matching plus Jameson Lopp's blocks.csv mapping; this is hard evidence the address received pool rewards under that pool's signature, not clustering inference.

mining-pool view
kncminer reward address (coinbase-extracted)

Received block rewards as part of kncminer's coinbase output across 94 block(s) between heights 305445 and 326934. Attribution derived from on-chain coinbase scriptSig tag matching plus Jameson Lopp's blocks.csv mapping; this is hard evidence the address received pool rewards under that pool's signature, not clustering inference.

mining-pool view
KnCMiner.com (Pools)

Address attributed to 'KnCMiner.com' on walletexplorer.com (category: Pools). Balance 0.0000 BTC across 167 incoming txs; last used in block 510,560.

mining pool view