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 0x91ed9cf7883680c787bfb00093fea87ede2d1d46b4d5bddc20a41049b22fdb49. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e26ccff-820e-451e-89be-70b76c359649.json and https://artists.proofprofile.net/proofs/artist/8e26ccff-820e-451e-89be-70b76c359649.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Canela Y Oro (Original Motion Picture Soundtrack)
Con La Alergia En La Mochila (Original Motion Picture Soundtrack)
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 0x297ed1760ae115a1056d9dbe19e409585c2760b91c6a37c62350d074c82f32a2. 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/TCAIY2438023.
Desde Nueva York (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e90868b039fa1baccd4f05a6149f067fdb5073f907bf5f6a3b33e9a28ce426. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTV32562342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ae936d2ab7038608560af463cdda1bd1249d3e7ec0fd8a96204d67c72ea8d8. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:11:03Z), 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/QZTV32562343.
Suite No. I: IV. Des Herzens Traum. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552b03887681614d67acaa617c9a3cf8ace9e08fc7d434209710690840466019. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTV32562345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0fa367f65a153973cd6635091266dc26e98cd27a77b1d9e79ed82acfb4d553. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:06:55Z), 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/QZTV32562346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1cb0952b0f32d8862ce1298989547ff85a6c3b04fddc05ea70f17682c8d45b. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/ES64E2511793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6191caf1570e4f711220f0e03488204e0e133591f920ae0ccb23bd4103ea26. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/ES64E2513021.
Espero Verte Pronto (From "Si Se Enteran")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b0c8dea4984d7f0c8043dadb0fa2452b8f60564264824fe2e2932a3983230e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ES64E2513171.
Si Se Enteran (Original Motion Picture Soundtrack)