thumb|300px|A woodcut of Belial and some of his followers from a German edition of Jacobus de Teramo's book Consolatio peccatorum, seu Processus Luciferi contra Jesum Christum (1473). Belial (; , Bəlī
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 0xdf92096248a47e20285d1e7f20ea45f23295083b6274e78620d44f9a17a40e7c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52350688-cb88-4c4b-b703-13a72c2e04d3.json and https://artists.proofprofile.net/proofs/artist/52350688-cb88-4c4b-b703-13a72c2e04d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).