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 0x0d8985de73cecab072d288bb62ee58b0f2c8d705e4e7480baf14e97491d0dd0d. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15344722-401e-4af9-ac4f-e303c3822655.json and https://artists.proofprofile.net/proofs/artist/15344722-401e-4af9-ac4f-e303c3822655.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Peerless 80 Aniversario - 24 Inolvidables
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 0x59c9d48f2fd14e07909fd8b86ad3a9c8f343093ed8480695f98fd91e063be4a4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:08Z), 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/MXF160600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25046eee1e1595293b07ab7672688f9ee1bef962f2620f9fcb785541d7d99e8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/MXF160600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e69cee99f91060864114dc0eb8815957ca4de452dca494db95bdc88cbc936d0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/MXF160600084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a702ac28e82cb7918559e2fc765ce06cd7b2e91f9dfa10bb74772e1bd4abc5. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:40:16Z), 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/MXF160600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02db773f58f7f4ad08405c2af41d45a08f45bb6c7a1f040292520da9bdd9497a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/MXF160400628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33abd71c03802677eb867e71f225848cb18fc5ba3617275ede0c6d0dd125689. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/MXF160205580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc9e7d6e8b6204a07e22d6420c72e62df106421fd76002a19c0ddea2918e3e5. 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/MXF160205587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25046eee1e1595293b07ab7672688f9ee1bef962f2620f9fcb785541d7d99e8. 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/MXF160600085.