1HtUGfbDcMzTeHWx2Dbgnhc6kYnj1Hp24i

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 222,109 on 2013-02-20 (input_spend).

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

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

asicminer reward address (coinbase-extracted)

Received block rewards as part of asicminer's coinbase output across 3126 block(s) between heights 237079 and 294915. 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
ASICMiner (Old/historic)

Address attributed to 'ASICMiner' on walletexplorer.com (category: Old/historic). Balance 57.1683 BTC across 5026 incoming txs; last used in block 653,664.

historic view
WatchYourBack: mining:asicminer

Tagged as 'mining' (subcategory: asicminer) in the WatchYourBack tagging dataset. Sub-source: miner. File: graphsense-tagpacks/20210201_graphsense_walletexplorer.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