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 0x63e2a3ce7d13ada26209a6d9687918098d9013cfe45d9a798804258b1580eae1. 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/493215b4-9630-4a25-b523-ccb12384afa3.json and https://artists.proofprofile.net/proofs/artist/493215b4-9630-4a25-b523-ccb12384afa3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ta Blues Tis Psychis Mou (Vyzantina Akousmata Ston 21O Aiona)