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 0x4cbc270bbc1404e025e94d277c712057b40dec6af509c8ed49e5bd370ae354bf. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ced3b28-a22a-4839-8f3b-4643fc9ffd67.json and https://artists.proofprofile.net/proofs/artist/0ced3b28-a22a-4839-8f3b-4643fc9ffd67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7a40b51b7bc3407b321e7c147eaf891f02173013bf64dc5a07261e016bea92e6. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:57:49Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2030169.
Opening / Cabrini Green (From "Candyman")
Victor's Piano Solo (From "Corpse Bride")
Save Room / Secure Place (From "Resident Evil 2")
Experienced Many Battles (From "Naruto Shippuden")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a5b1d5e7130d7b42107119e559a08414c082fd8f0f4534bd843748db84ec9d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:55:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2140460.
Sara's Theme (From "Breath of Fire") [Instrumental Version]
Harry and Hermione (From "Harry Potter and the Half-Blood Prince") [Cover Version]
Promise Reprise (From "Silent Hill 2") [Cover Version]
The Evil Moon: A Zelda Majora's Mask Collection
Oath to Order (From "Zelda Majora's Mask")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bb144306bf2b6209bffa2f0b5866155b6615d4938e5c4c4d2fe8f6127504f8. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32150273.
Piranha Plant's Lullaby (From "Super Mario 64")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43ca5071fee902bb4cc1f5c7ba9078c4e695fce96f4cc4a2f689ff075736a5c. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32212107.
If There are Storms, There are Stars Too (From "One Piece")
Tears of the Grand Line: A One Piece Collection
A Safe Place to Stay: A Resident Evil Collection