12KKDt4Mj7N5UAkQMN7LtPZMayenXHa8KL

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 754,693 on 2022-09-18 (input_spend).

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

What we know about this address 3 findings ✓ corroborated by 3 sources

foundryusa reward address (coinbase-extracted)

Received block rewards as part of foundryusa's coinbase output across 2465 block(s) between heights 754070 and 763576. 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
Foundry USA reward address

Used by the Foundry USA mining pool. Tags: /2cDw/, Foundry USA Pool.

mining pool view
Foundry USA reward address

Reward address for the Foundry USA mining pool, per the sysfix/mining-pool-addresses registry (fork of btccom/Blockchain-Known-Pools). Pool tags: /2cDw/, Foundry USA Pool.

mining pool view