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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 479,844 on 2017-08-09 (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

kanopool reward address (coinbase-extracted)

Received block rewards as part of kanopool's coinbase output across 112 block(s) between heights 479731 and 491121. 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
Kano.is-old (Pools)

Address attributed to 'Kano.is-old' on walletexplorer.com (category: Pools). Balance 0.0000 BTC across 114 incoming txs; last used in block 925,149.

mining pool view
WatchYourBack: mining:kano

Tagged as 'mining' (subcategory: kano) 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