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 0x3fda0a2603dea4b1a7f386a3652bc09bca31c39dd9ae8e66d0bed5deddd69944. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ba7f500-7bbe-4ce5-97ca-98360a341e4f.json and https://artists.proofprofile.net/proofs/artist/2ba7f500-7bbe-4ce5-97ca-98360a341e4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
А тепер усе інакше (Projekt Gestalten Remixes)