14cZMQk89mRYQkDEj8Rn25AnGoBi5H6uer

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 206,922 on 2012-11-07 (input_spend).

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

What we know about this address 5 findings ✓ corroborated by 4 sources

btcguild reward address (coinbase-extracted)

Received block rewards as part of btcguild's coinbase output across 26180 block(s) between heights 206796 and 363142. 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
BTCGuild.com (Old/historic)

Address attributed to 'BTCGuild.com' on walletexplorer.com (category: Old/historic). Balance 0.0000 BTC across 26484 incoming txs; last used in block 477,534.

historic view
WatchYourBack: username:wot_Eleuthria

Tagged as 'username' (subcategory: wot_Eleuthria) in the WatchYourBack tagging dataset. Sub-source: 20210128_bitcoin-otc. File: wot/20210128_bitcoin-otc.tags.

bitcoin-otc view
WatchYourBack: mining:btcguild.com

Tagged as 'mining' (subcategory: btcguild.com) in the WatchYourBack tagging dataset. Sub-source: miner. File: graphsense-tagpacks/20220510_graphsense_miners.tags.

mining pool view
miners

Tagged as 'miners' in GraphSense pack 'miners' (category: miner, confidence: forensic). Cited source: https://github.com/MatteoRomiti/Deep_Dive_BTC_Mining_Pools/blob/master/dataset/miners.json

mining pool view