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 0x3ce5dd09bc4751ba4b19cef986e6e4b3d0f7df08c008864ac589b13d64355e8d. 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/6909ff49-fe07-454b-9444-0bd3097d9a13.json and https://artists.proofprofile.net/proofs/artist/6909ff49-fe07-454b-9444-0bd3097d9a13.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 0xbb7b5a630ffa07ffc2357d4d6ccd9817b0166118abd2a1f52f0d3f9e447ca6e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWW2371554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7fccf553224b7496e392788535a268a42da1b5937aa3bc2d84ee550c2e736e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIUM72200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd4df2152fe8afa4e250af9cd4a25e4f7691ad84e120b4b6de4a462cf51d661. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIUM72100359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8584225dcb5dd0b93fefd50aaebcb9f55747b712708cc3938d32edb3410be6c6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIUM72100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e90cab2688003afd3f82e61013f741e86cb197e19741e6bb7c509390406de83. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FIUM72100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66a23ed827c6c5d4ed9350c850f1150fa0e27f04101ef5921cfba302b98e54d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FIUM72000415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa984375bb3b044e2c251bbc3d1bce54bc1189def8e49acde69f2a302086228a9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FIUM72000328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32139c1073bd60d688a1416e81ae6eed1c11c2b694f740b1c01f72044ac01cad. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAFY2108836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67a24773f06df5ea557ecc8ddfd2a7555443a05e80499f86a001575d47359a9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAFY2108840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3db2c1053968edc04e7f390a11c6e28533127fcc1eff60955a57680ae6974f7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAFY2108850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535405381e00320769c477d63b82b03ff29b40521306c3fc31b6fa606b7bba35. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAFY2108859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9009bcdc12443f0b001338ee0820189cc9355331e12cb4ae313daba694441ec. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAFY2108863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde53ac27c5b7509c8a78f466fd535651c94fc9ba66ab177a4bb5b781dd55bf7d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAFY2108865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3748644a585e1b0130e53802cf9c0dec96b29d037b4ff88910d2c0c60e79c1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAFY2108874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f12f16cfcb4f5abcfd5c49b83ac844f466edb6adc178c9c7d7ad836b5541e1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAFY2108889.
Kukeseen (Forgotten Sunrise Unseen Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa126a94033d22fa42c7c4b7fff138cd9d896316578542e3dd04505ca20a651ed. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAFY2108907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37cf0eec8a57861b78bc3dfa080c90c897d4aeed652d2a034bac80f2b5ba697. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAFY2108917.
Autoriteet (Paul Oja "Front to Back" Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d42f8cea76a4b3865c715508168a4f19586367a780e1e94289baa9d8d54a0a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAFY2108933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69739903e62406d6dcd16b8f1a184b26a0c505f46da7fa532aa388a63b3a1733. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAFY2109126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9379d49978a4035e38ee078adc743992fad7f158d630f3532d4a47bdaea05a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAFY2109158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ec685507eba1036c568d23eced36850492c855dfeedc921d78c24ed027354d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCAFY2109166.