18cBEMRxXHqzWWCxZNtU91F5sbUNKhL5PX

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 415,154 on 2016-06-07 (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 3 sources

50btc reward address (coinbase-extracted)

Received block rewards as part of 50btc's coinbase output across 1 block(s) between heights 825246 and 825246. 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
tatmaspool reward address (coinbase-extracted)

Received block rewards as part of tatmaspool's coinbase output across 99 block(s) between heights 641571 and 662197. 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
viabtc reward address (coinbase-extracted)

Received block rewards as part of viabtc's coinbase output across 37331 block(s) between heights 414875 and 840315. 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
WatchYourBack: mining:viabtc

Tagged as 'mining' (subcategory: viabtc) 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
WatchYourBack: miscabuse

Tagged as 'miscabuse' (subcategory: n/a) in the WatchYourBack tagging dataset. Sub-source: bitcoinabuse_blackmail-scam. File: bitcoinabuse/20210201_bitcoinabuse.tags.

abuse view