Hamish Donald Blake (born 11 December 1981) is an Australian comedian, television and radio presenter, actor and author. Since 2003, he has worked with Andy Lee as part of the comedy duo Hamish and A
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa19debe05c3626f09ac7ebd83030a6ca588455b5fcc0ead971b446f64e189e8. Chain 2 (Bitcoin): anchored in block 954013 (2026-06-16T22:27:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/349a7292-f1bb-4b5f-b93f-9c39b850ccda.json and https://artists.proofprofile.net/proofs/artist/349a7292-f1bb-4b5f-b93f-9c39b850ccda.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.