right|Apollyon (top) battling Christian in John Bunyan's The Pilgrim's Progress|250px|thumb The Hebrew term Abaddon ( , meaning "destruction", "doom") and its Greek equivalent Apollyon (, Apollúōn mea
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 0xbaa96c89f2582768d6de33ef702ebb8cc9ac788eb5f04a2ec275e9820ebe345b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d2aed03-9e75-4714-a0a0-4b3ec50b0980.json and https://artists.proofprofile.net/proofs/artist/7d2aed03-9e75-4714-a0a0-4b3ec50b0980.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).