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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9519708b87cfb8bc188e14f491622a0c841fb8e07033673bbda5fe08f28e09. 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/68dede2c-4ea4-4943-8051-81abbe9c7a2a.json and https://artists.proofprofile.net/proofs/artist/68dede2c-4ea4-4943-8051-81abbe9c7a2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Un nouveau monde (Kid francescoli Remix)
Un nouveau monde - Kid francescoli 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e833031a6a52c48be5454037b502ec20fbe160c5599d2b64120baf43373b115. 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/DGA052256333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed450db0584291554c3228454e9546d16f8fcb0bde770febe9efc18ff78a6fd. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRP622200810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c3c577e84bad4c6bcb8f240c12c8045e5f7af0908eb9303cf1aa4de6167e71. 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/FRP622200820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff75e0e372316c56f2cf16287680e633e85ac44a6ff4d6cfc554177cf8c24c1c. 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/FRP622200870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c398ae5bcca029b1f2028347ccab4a5f25cebbb854402fce153e95f6c57d1a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRP622200900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbc18c554e155799de35b3635509972bbc799aafbe646bbf138d96db4880bfa. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRP622200840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3702d72906cf455d22efe5edbc4dad412f0164443c212b4f4c0930c204f212d1. 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/FRP622200850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1067c90aafac524c6b0be929043b698446dd755df4dc840d4679f102278c545d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRP622200860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed6d47162f0d1a9edb815e144d26eef31d53b4541fa6054b158ccdce964fb7b. 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/FRP622200880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63fffe96c7f3eef91d888bb6bf5548934d1d6dca79055e7b4d1d895d7d6488d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRP621900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3c9bf28cf9c4836fea7b9a6c9cc3ff15513d8ca9afdd3f872d8e3506147056. 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/FRP621900220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6631f52c662a011f07a4b08e759485e45c0e7cdcbe257545d4bf506c54650db1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRP621900230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b7b4b62fbff79596c5ae94cfdf9e47c83b3a881a2b5f116daf2d9b8c18d1dd. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRP621900250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f2b5ea8eb0afa9e7ac91cc11bf67083e25dce8ff343dcb1309e850087819d1. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FRP621900270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650b215700e0c93a1c0dad5144e12cb2d23641a36314eabeb97a5aaf9325f40a. 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/FRP621500600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5ce2c42bbda530b544e6ecf12b524d23765fb0cf7be39bbed1ca49c1aa82ce. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/FRP621500610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e887ccc8af27ce5e8cf6bda242387956f1ef6a481e5b2c91d24330f6ea1473. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/FRP621500620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f9c1b582e1c450ed383d382b5faf7462ceb39baf6b938980ac0d3043900b08. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRP621500630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4aa97fe46819f8c5975c38e9cca864f59d7c54490cd62ca47d97202f4402f02. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FRP621500640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8707f64a30c93ecc623c85e4fe2ba2dead6cb735982a7d4b57ff715ecea9d0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRP621500650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cd6c535d0fe090916b404a5007caf8a6937507fa031b304baae006dcb328b0. 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/FRP621500660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f860aeff58cc4a73b7546a0d5802a4889417e557756985c7d044d611100cbb. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRP621500670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xededde3a6e1981fa2d6fc7394d93bdc9282395c1c596933e097494d1aabcd838. 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/FRP621500680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7e5d1692a21c8eee235383ab5382598cbe3f251e0eeef1847b330882765ec7. 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/FRP622200930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a3551fa5b09b8802e66d58223421e8347bc9a25bb80cfb1b52cb78f81b07e2. 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/TCAGF2299898.