1ALA5v7h49QT7WYLcRsxcXqXUqEqaWmkvw

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 265,902 on 2013-10-25 (input_spend).

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

What we know about this address 6 findings ✓ corroborated by 6 sources

cloudhashing reward address (coinbase-extracted)

Received block rewards as part of cloudhashing's coinbase output across 1823 block(s) between heights 261716 and 343436. 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
CloudHashing reward address

Used by the CloudHashing mining pool. Tags: none.

mining pool view
CloudHashing reward address

Reward address for the CloudHashing mining pool, per the sysfix/mining-pool-addresses registry (fork of btccom/Blockchain-Known-Pools). Pool tags: none.

mining pool view
CloudHashing.com (Old/historic)

Address attributed to 'CloudHashing.com' on walletexplorer.com (category: Old/historic). Balance 0.0000 BTC across 1855 incoming txs; last used in block 344,572.

historic view
WatchYourBack: mining:cloudhashing

Tagged as 'mining' (subcategory: cloudhashing) 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