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 0xf15e64ff928b9d52dc01cea6e3c1be4ef1a5c2ab47bf053cd8fbd1da731d421b. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2925db93-e077-47e0-af7a-94e802b0f793.json and https://artists.proofprofile.net/proofs/artist/2925db93-e077-47e0-af7a-94e802b0f793.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Твоя Любов (Присвячується захисникам України)
Віночок українських народних пісень (Іванку Іванку / Ой чорна я чи чорна / Ой на горі два дубки / Ой на горі тай женці жнуть)