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 0xe41f18d0516f6b7ee1eb356913d31e431ebd228b1288ca39363ec3545fc5789a. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/445a5cdb-1d31-4b4e-b376-4d79b06702ee.json and https://artists.proofprofile.net/proofs/artist/445a5cdb-1d31-4b4e-b376-4d79b06702ee.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f117f4ec2de6291a747b4db139a47bc3ab30a56d6e2f5d14963de5fdb1c2bb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT7152272012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4a82f7a5be3aa73c5511f8bc3d345a4f6e5dd6c3cb09793c12ba5d195a1ec2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:24:23Z), 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/IT7152272015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7fba59d3b6c11a775ecc391844ae45d78d5799cd1a64aec012170c987d08fd. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:32:42Z), 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/IT7152272016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4ad0f9f4e55a2bcb7eba7fbe0cf3553bd7cacd764eca8e2833caf75304ac57. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:20:26Z), 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/IT7152272018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd2c873d18db202da515212b409f293c98f3844f06d87585503f54db4c3988a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/IT7152272020.
Il meglio di te (Original Motion Picture Soundtrack)