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 0xaf9293e93c53b77bd8599581e9f64119195f377692f46a11affdf5ce76f63af0. 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/1fa53475-acdb-4b15-a846-7ebf9a9cdb84.json and https://artists.proofprofile.net/proofs/artist/1fa53475-acdb-4b15-a846-7ebf9a9cdb84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eyes Without A Face - Ronan Instrumental Remix
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 0x9a35f404eadf560d5f45762b806597310db34ce2a3fda3bc0b3ddf88e2c6ea02. 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/ARF412400309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772e8257b58bdafd779c0f69784c2a6a192cc1dac27b41d8fca5397562d859a4. 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/ARF412500164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb0f8b2a1b7402f6fc68fd4ea2c4c860f05723d28da43db45b7e96bc86a73f5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF412400150.
99 Red Balloons - Ronan Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6fa60c1f9276b1e3cf3125af51238feddf217fe16adf26312403eae9c24527. 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/ARF412400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80671c3a2afdd6e983d141927229d16874f6c4002a99e3f8cbd532793d2a266d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF412400248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf294076934bb9da7a8bfdc4f237ee10633d2b115d55efb05c207628305d5ff4c. 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/ARF412400290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf1b443506cdff0180b5e1be8373635c9cffd78d333dfebc361a9484d333551. 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/ARF412300345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673f204b1193aa20ef04e6d1e17a8ed5a2c90bb20573cb0c98e15d44d4c22dfa. 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/ARF412400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61727fd950f20912693a1dcd3d3e80759210430e125777de9866a3ee245a9ff9. 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/ARF412400249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c16199f44b9b3d5cdf000760f82e4d3898bbddb1ed473508dae4be63029b7c. 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/ARF410090844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ca54a7c58f6ed26ff47bfd650c9cda20105bda68b41456624a0a28c618e953. 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/ARF412300281.
Chill out Trilogy: The Definitive Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eebc4825cc9c1b14ebbe0d6360658172a2fdca014371b8254df8ba30f330523. 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/ARF410200021.
God Put A Smile Upon Your Face - Ronan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ce315c3a001ee4265824b5d3855e47d4f19ecf94b43160f8afeac4925e0969. 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/ARF412300335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf1b443506cdff0180b5e1be8373635c9cffd78d333dfebc361a9484d333551. 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/ARF412300345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ab59946e3aca81217d035210cb928896b267543c412e94c3f5541a247eff43. 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/ARF412400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4d6da3a903ef6de5bdfd682b978cad38b601841d9541cd1cb69b8f1eba4676. 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/ARF412400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49dee4cea779cd357fd4a9f00ff194206158ed7f86acc7d7413d13b6c4be047. 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/ARF412300378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3524f61f69594c43cfc076a837dcc6941f3d0a71a51a3cc8f5f8b99bbd7beb. 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/ARF412400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a05ecce2dbbb2491488af2aec201444bfc14e05b20341ef1c14b82d7422c5c. 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/ARF412300438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01c1b5b11f7ae94d1b69111b12860503da9c3ff518bd1918ec2e4e40bccdbde. 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/ARF412300451.
Vintage Café: Lounge and Jazz Blends (Special Selection), Vol. 15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f17243b9dc363d6276adec2d186f40222693fe7f0b77cb64d40131d4f758bf. 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/ARF411999067.