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 0xce505d2b51750768db6127a28359f4648736de636517cafb5bb4ab471aee60d3. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb71c082-858d-42f2-b85f-94956fe67eaa.json and https://artists.proofprofile.net/proofs/artist/fb71c082-858d-42f2-b85f-94956fe67eaa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Divided in Darkness (Original Cinematic Soundtrack)
Vector To The Heavens (From "Kingdom Hearts 3")
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 0x5a21205bc30cc6fef68602ec25748284cd4fd9d702674acfe25e02b9d2bd6a45. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZGWX2099489.
Let the Battles Begin! (From "Final Fantasy 7")
The Other Promise (From "KINGDOM HEARTS 2 Final Mix") [Instrumental]
The Other Promise (From "KINGDOM HEARTS 2 Final Mix") - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c6eda50db187cceead14cf99c109b150526510d91438d24a889f6893659f7b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZGWX2141870.
Eternal Darkness: Cinematic Music From Kingdom Hearts
Enter the Darkness (From "Kingdom Hearts Birth by Sleep")
Eternal Darkness II: Cinematic Music From Kingdom Hearts
Rage Awakened (From ¨Kingdom Hearts 2.5 Remix¨)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cb1e967776e49eb39a22512a9584341e0574db1a6b6f3409de3e47ab25f126. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZPJ32105235.
Aqua (-Dark Dive-) (From ¨Kingdom Hearts 3¨)
The 13th Dilemma (From ¨Kingdom Hearts 2¨)
Master, Tell Me the Truth (From "Kingdom Hearts Birth By Sleep Final Mix")
Festival of the Hunt (From ¨Final Fantasy 9¨)
Bipolar Nightmare (From ¨Nier Automata¨)
Edge of Existence (From ¨Kingdom Hearts 3¨)
Light Within: Cinematic Music From Kingdom Hearts
Terra (From ¨Kingdom Hearts Birth By Sleep¨)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50437a9b1fb958449d856b7c7d719ed344dd4a3297753fab281fb686966f6c02. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPJ32329883.