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 0xa21c584ddaa580a019899cb8840bda744fed5254971ba1a15649631abe026cee. 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/bd56e6ee-ce71-439c-9e40-30570953b3df.json and https://artists.proofprofile.net/proofs/artist/bd56e6ee-ce71-439c-9e40-30570953b3df.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 0x6c40f5a0ecfc5a5a48bbe148e6b8ec87215f3b29e65329447bc489d3682b2fdf. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:22:23Z), 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/VED040600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fcfaf3a7914790460f1c11d954e4838b7a21050bcda67eb930e0b53616cff5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/VED040600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1935b79c76c89419bc0f53fe0555075f22634c904c14183a1fbf3c9264d13e37. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:04:36Z), 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/ESA011667108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ce83a1a66e178dae130f88505b2fc659d5043e1d0767d7f148637707c1925f. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ESA011665968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3672b30d0fdd0a0be904d95b54483be42beddeecc6db7ea84ebd4aff003a9a20. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ESA011665972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ea54412bb612c0e343a33ab3219fe71c9a8a6337a1beb301e582795cd3462e. 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/QM6MZ2430555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8611d374f6f6591fc8ece7c296405473db00a02ae0cd4a1b934f0954d3c7065. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6MZ2430556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67af086e663c2c60cce1c514c520fc4d3dbe76c0c511222a1d268fb2933bea3. 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/QM6MZ2430560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f8cdecaf4fea483fa341687e9a321cd019f6ec83506d6511581136232ebcf8. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ESA011686932.
Tecupae Vuelve: En Vivo desde Miami (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3207117ea331f6753c134f4dcc35222232aa2b1bc0eac9cfb8a6778fc0c22a14. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZNWZ2135034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7391d68ca0b12c6886668bee6b55032e7081657c9d4deb83f9719a905675107. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNWZ2135035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96706b27e6b852f0f9d8e1866f691e04b261b01621eef543db2f39505c2eec04. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:41:11Z), 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/QZNWZ2135043.
Latin Fitness Dance 2012 - Workout Cardio Music - The Hits for Your Workout (Pop Kuduro, Cumbia, Latin House, Dembow, Merengue, Salsa, Bachata)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b5e5f492fcd46a2232cf8f19613696180564c327bab40c6d1941120b63ab59. 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/ITF251000015.
Latino 37 - Salsa Bachata Merengue Reggaeton (Latin Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b5e5f492fcd46a2232cf8f19613696180564c327bab40c6d1941120b63ab59. 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/ITF251000015.