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 0xb28efc80d14a9eac6674bfe4a32e250263eb89ce32926b54ffe011cbee60ba21. 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/427201bb-e480-4809-b20f-f0ae39dcdcb0.json and https://artists.proofprofile.net/proofs/artist/427201bb-e480-4809-b20f-f0ae39dcdcb0.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 0xf6b866dd6a576839694d9cda955abede30a9cbf654ed4a4db6629ab4393bfca0. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QM6DC2074170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b22621610f7155712e9416c81065c231218017f1941f7f865caa1dffff4697. 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/QM6DC2074171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f2db4bc32238b68d29048bc218aec2d4e589684f8394c5549c4db5521ab5d0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM6DC2074164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f157646cdd45a29b8b8d797a4ac75d3b1b845beb00679bf44a3e2c56e111d4. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QM6DC2074168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf8c4f37c728fd816a9bb9f6d273dcccc1d8955c67a1a1476aae510386ee32f. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QM6DC2087224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1329f4de59d91c6295920ae99018af4dc1f9e6875ab53f11ba47c7bb500c0a5. 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/QM6DC2087225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed58d0d3177b888ac77243689938fc6dea8acb4efe18ac16210dd69b76267eb. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QM6DC2087229.
Tan Bella Tan Presumida / Dejala Que Se Divierta / Gira Gira (Cumbias En La Zona X)
Tan Bella Tan Presumida / Dejala Que Se Divierta / Gira Gira - Cumbias En La Zona X
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db4a91c2151012b95b5c0d1b8fb7b3ae17d3b9d9c68402ddb58d3bc63185c2c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6DC2097894.
Tan Bella Tan Presumida / Dejala Que Se Divierta / Gira Gira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7392b5099e29fd1388218b5bf09ec1c7457c6af2750734c50a507b74e2c5b7bf. 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/QZNFJ2102391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7392b5099e29fd1388218b5bf09ec1c7457c6af2750734c50a507b74e2c5b7bf. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNFJ2102391.
Maverick Trip (Nadie va a pensar en ti mejor que yo, Acurrucar, Fuentes de Ortiz)
Maverick Trip (Nadie Va a Pensar en Ti Mejor Que Yo, Acurrucar, Fuentes de Ortiz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987d63ee9f84400c61ef72cd039359a408ebe2706a64936ba28b7871adb6988a. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:31:33Z), 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/QZNFJ2206057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d662b9d98ac13d37b58f08ec3573032582831cb7a4b118492bb4e46e5af604. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZMZ92409608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55664050f85cda2af144ad8be2e8f11b740bade87c21270b69d4d625761afedb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJV2410471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccf3a69acf52c091ae76a0d87d3d63fa1d607dc48837f85b94122fe1dadd707. 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/QZNJV2439825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55eaed8dfed1a17143e54fcb3c0a83341c40cc07b569326ac3f7b292b002dd0. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:59:46Z), 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/QZGLS2587150.