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 0x5c0fa7c8d5e977e8ae9cda31d357cf43d43fcc4214d2f4a46a56317440fbf363. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/489566c7-62bc-4e09-b46c-e9a24fe7f130.json and https://artists.proofprofile.net/proofs/artist/489566c7-62bc-4e09-b46c-e9a24fe7f130.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sillunu Oru Kadhal (Original Motion Picture Soundtrack )
Thinking About It (Let It Go) - KVR Remix
真的傻 (電影《一吻定情》追愛版主題曲)
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 0x06473f78e0cf55d7b8ae9dd36bf05c795e27a49419a7076bac441393484b6743. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCAER2044691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf057aabbd4cf8b983f8e7e47358afa2f05b4e044edeaeeb49916fe859cc8fde. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCAER2044697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae823e834ffb6118114634bff6e1a74ffc91708078cb3840e4068d2631c81d7. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCADU1838115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf7a1bf017e935f9a60458bb0e1218e90f9fc74da622bab9cf6b1576c03a764. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAEO1901076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b98fa0c59ccc9386a5355ba6a965df9e211e871bd89b5a71581f367326981e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAER2045399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5174fbbff929b3fda06d00e8ecb3b2d98d8fbf6a797041cdd3801ef13094813b. 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/SE5BU1942767.