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 0xa087db91eae3e046da886c6c3a9b22aedfad6f0f19a16c4f27ac0415d0a29afe. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b38f31b6-24d3-468c-9379-183fb4f40c23.json and https://artists.proofprofile.net/proofs/artist/b38f31b6-24d3-468c-9379-183fb4f40c23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Poco Tempo, Troppa Fame: Omaggio A Fabrizio De Andre
La prima neve (Colonna Sonora Originale)