1MjH2dighyAj2Bf5dmGEDyGsmfa9c3GBba

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 913,471 on 2025-09-06 (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

ocean reward address (coinbase-extracted)

Received block rewards as part of ocean's coinbase output across 3 block(s) between heights 918920 and 940595. 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
CoinSpot.com.au (Exchanges)

Address attributed to 'CoinSpot.com.au' on walletexplorer.com (category: Exchanges). Balance 0.0000 BTC across 7 incoming txs; last used in block 945,787.

exchange view