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P2SH (3)

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Quantum exposure Reuse-exposed

P2SH · reuse-exposed

P2SH 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 884,448 on 2025-10-28 (nested_witness_reveal).

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

est3lar reward address (coinbase-extracted)

Received block rewards as part of est3lar's coinbase output across 4 block(s) between heights 919923 and 921130. 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
Est3lar reward address

Used by the Est3lar mining pool. Tags: /Est3lar/, est3lar, Est3lar, EST3LAR.

mining pool view