Blake or Blake's may refer to: People Blake (given name), a given name of English origin (includes a list of people with the name) Blake (surname), a surname of English origin (includes a list of p
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 0xb90a48fce9a44c10ebd1f90c12e44fae373a89c312ded2c3fd0c305f59cf5e1d. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0665a1b5-e503-419d-9e65-035c09d809b1.json and https://artists.proofprofile.net/proofs/artist/0665a1b5-e503-419d-9e65-035c09d809b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).