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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826b3514daf9b5494976ccd400639e8305fcb81166732612d908892516fb9ad5. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09df2c95-3df8-4c4b-a096-26cbaaff30dd.json and https://artists.proofprofile.net/proofs/artist/09df2c95-3df8-4c4b-a096-26cbaaff30dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
OttomanMusic | Echoes of Victory Track 1
OttomanMusic | Silence in the Harem Track 2
OttomanMusic | Whispers of the Palace Track 2
OttomanMusic | Dream of Paradise Track 1
OttomanMusic | Melodies of the Palace Track 2
OttomanMusic | Breath of the Assassin Track 3
OttomanMusic | Breath of the Assassin Track 4
OttomanMusic | oud solo performance Pt. 2