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 0xc4fd6d6304229e974790dad2492dfe3e63f9fe814fb4a6eb92a5472776ed1727. 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/aa195afd-07bd-427a-8c08-e8585ad2bcfd.json and https://artists.proofprofile.net/proofs/artist/aa195afd-07bd-427a-8c08-e8585ad2bcfd.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 0xa86a227e0220518e9a00b279ab4507d97162b008678d80e7dea870da4c10efa2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMDA61476957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abe6a878e0b4fd3cac8a1c365395dad8f4c4304b66fa509919313b2113e0dca. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QMDA71374104.
La Mickey Danza (De "La Casa de Mickey Mouse")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15fcc5329868b8aac3378aa8d6ec265ddbd0447ed3e549671510a7f65932452. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QMFME1378411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b4d1e2553abb3c8086957d3cc822f66ce428e7804fec7a73b8ace8fba3b548. 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/QMBZ91307216.
Los Tres Cerditos (De " Los Tres Cerditos")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd599257e9d2d1c269221987b84059813e07b0475c0ae215288e03f3601f0264. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QMBZ91307215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65f32765c6f088b70808269a0d91953fceb173df4feab0495fc1a191614bdff. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USV291361867.
Supercalifragilisticexpialidocius (De "Mary Poppins")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c5ed4092fd411b3b3f835386d094534cd653a99a535ce570fdb805aa3b9f53. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USV291361886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7375ba8f7a1f5404809d74868a29cda6057bff001231c7e36a47bfc0c8b912bd. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QMFMF1464888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1b0db1855b0604be6e06df77b90132d346d58cf9841331d6485b9fd25d5f8a. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QMFMF1464883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470c1fc28b1d12397eff79a358233af88b8a7e6f93821db1eae06a15f9397bca. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:57Z), 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/QMFMG1430078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099036e0319fd3c280bf6c630a9c79a9286ccbd97a4298d01ba05807d1ca197a. 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/QMFMG1430087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b4d1e2553abb3c8086957d3cc822f66ce428e7804fec7a73b8ace8fba3b548. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMBZ91307216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebfb50080c98a703f95812878a15547130ed1c261f4cc204bea2d79d1038940. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USV351482884.
Te Toca un Chequeo (De "La Doctora Juguetes")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e8eb7d94828c116deeecd49ed3184b06b6f234ea7dba1088453c9def099214. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QM6MZ1501428.
Jake y los Piratas (De "Jake y los Piratas de Nunca Jamás)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6248b223eba44dc71328f4c657655a68f89f7a0095764c6999194eb93b69e94a. 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/QM6MZ1501430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ffbfe42c393616cdb29e5ae43df0143b80591421891330c54be8417ccbc5c9. 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/QM6MZ1501435.
Encantamiento Para Dormir Al Bebé: Melodías Nocturnas