Colin Charles Baker (born 8 June 1943) is an English actor. He is known for playing the sixth incarnation of the Doctor in the BBC science fiction series Doctor Who (1984–1986) and Paul Merroney in th
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 0x21af33fdc3c3e5edf75564b5a60c6f05d68595424db9f103f97f90643086a598. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffb0a13e-ea3a-41d6-b7bb-2938e7f5dda6.json and https://artists.proofprofile.net/proofs/artist/ffb0a13e-ea3a-41d6-b7bb-2938e7f5dda6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).