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 0x7ddd374b63c5e68a991a82166533f72cc70e95441133da55c2ab6e59438c0fda. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9202c220-b4b1-4762-80ce-76c9a12ab5e5.json and https://artists.proofprofile.net/proofs/artist/9202c220-b4b1-4762-80ce-76c9a12ab5e5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Suikoden II Mercenary Fort (Vocal Arrangement)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x1cc32e08bac6c97a7a269a892a3f9877fc81150d2522dc65274417725bf11f8f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ0831812 — a six-check JSON result.
Walz Music Presents: Aveyond Lord of Twilight & Gates of Night Official Soundtrack
Pixel Whirled (Official Chiptune Soundtrack) [Walz Music & Sound]
Hardwood Spades (Silver Creek Entertainment)
Backyard Bounce Game Soundtrack (Chayowo / Clickgamer)
Aveyond 1: Rhen's Quest (Official Soundtrack)
Yummy Drink Factory (Original Game Soundtrack)
Aveyond 2: Ean's Quest (Official Soundtrack)
Aveyond 3​-​3 & 3​-​4: The Lost Orb & the Darkthrop Prophecy (Official Soundtrack)
Aveyond 4: Shadow of the Mist (Music Soundtrack Selections)
Brightwood Adventures (Game Music Theme)
Wonder Village (Digital Green) Music Theme
Phantasy Star III: Complete Soundtrack Reorchestration