19dENFt4wVwos6xtgwStA6n8bbA57WCS58

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 662,476 on 2020-12-22 (input_spend).

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

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

foundryusa reward address (coinbase-extracted)

Received block rewards as part of foundryusa's coinbase output across 11311 block(s) between heights 668578 and 754068. 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
miners_additional

Tagged as 'miners_additional' in GraphSense pack 'miners_additional' (category: miner, confidence: unspecified). Cited source: https://github.com/MatteoRomiti/Deep_Dive_BTC_Mining_Pools/

mining pool view