Isaiah ( or ;Rippin, A., "S̲h̲aʿyā", in: Encyclopaedia of Islam, Second Edition, edited by: P. Bearman, Th. Bianquis, C. E. Bosworth, E. van Donzel, W. P. Heinrichs. , Yəšaʿyāhū, "Yahweh is salvation"
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 0xc345ba775679ac9b12074616f41e6c134f3301e590df7bce81f9e744995c189a. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0471574d-f2f1-4636-bf51-bb9a6dc60198.json and https://artists.proofprofile.net/proofs/artist/0471574d-f2f1-4636-bf51-bb9a6dc60198.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).