1B55K4WuR1AQKCmF8WznDmhZNw6G1x8uEc

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 338,706 on 2015-01-12 (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

eclipsemc reward address (coinbase-extracted)

Received block rewards as part of eclipsemc's coinbase output across 55 block(s) between heights 336749 and 395851. 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
walletexplorer

Tagged as 'walletexplorer' in GraphSense pack 'walletexplorer' (category: uncategorized, confidence: service_data). Cited source: https://www.walletexplorer.com/address/1B55K4WuR1AQKCmF8WznDmhZNw6G1x8uEc

uncategorized view
EclipseMC.com-old3 (Pools)

Address attributed to 'EclipseMC.com-old3' on walletexplorer.com (category: Pools). Balance 0.0000 BTC across 55 incoming txs; last used in block 396,392.

mining pool view
WatchYourBack: mining:eclipsemc

Tagged as 'mining' (subcategory: eclipsemc) 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