Joseph Warrington Bullock (born 13 April 1955) is a former Australian politician. He was a member of the Australian Senate for the state of Western Australia from 2013 to 2016, representing the Austra
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed53a359dd5c5685bc2b354731076034659d90613938395e9fe95199768f3f3. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f66acbe6-8576-4d3a-8a0b-50885bbcc7b4.json and https://artists.proofprofile.net/proofs/artist/f66acbe6-8576-4d3a-8a0b-50885bbcc7b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).