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 0x39ce1c0d66562672c8c1e0eadffa65adae623b0e0c145572e645d7c11a3619b2. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2aa64b4f-95d9-48c3-8d32-32519e3a6fa5.json and https://artists.proofprofile.net/proofs/artist/2aa64b4f-95d9-48c3-8d32-32519e3a6fa5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sí Mi Amor (Banda Sonora Original de la Película)
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 0x46bf3d7498bf9d0d9fd24d6597c1a83b0d70a2100fba1200ed0849b7f89157eb. 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/USCGH2038621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad92e094920ce3e0964532b75d18d1c6404015d64e8c75250af2af58615b0fa. 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/AR5UH2402127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e06f5e4ea013dfa39b3bd80da57b2f0a15955763f19d23ba75b2e3efd0a4cf. 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/AR5UH2402128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f03d724680efdf21b9791d1934990570a33c082d9e55547519c71c9e30dcdf0. 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/AR5UH2402129.
Mix Ruby: Corazón de piedra, Costeñita , El Aguajal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd76176e51b76a59f87fd08f91dd8fd8b9bd1e4202866044e11ab33e5469dcea. 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/AR5UH2402130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace95c65628ade3deaad49000b5a6600f325f2323110c9277502850cce166374. 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/AR5UH2402131.
Homenaje Destellos: Jardín de amor, Descarga Eléctrica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede99e085fa305bb538c58e1021b19d9caf17efbcdb5005819962749da1246bb. 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/AR5UH2402132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e87a8eeb4e43ca2f89204fae099dfa1754949402a078ac982d0ec73a917e9cf. 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/AR5UH2402133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2f75b5995b04e75f091421bb0109d72dddbb823979c8a1537a3407b88811c8. 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/AR5UH2402134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd3cf8a828b73525a342fe83d15d03d6385881c4b958ed81d9572e23aebfed9. 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/AR5UH2402135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e75ff4c301a64909a64afa8d5d31358b3c18ef8174db11109fa705d2f97a877. 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/AR5UH2402137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bf8647ae107c644b68ddbd6030839ed7237c9980c0065501f2f22bcca6f519. 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/AR5UH2402138.
Mix Cumbias Románticas: Miralo, Miralo - La Ladrona, Te quise olvidar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc566013dee650c1b444c7e5d490ee67ae8b7b7112c1311e6201854e751f92bfc. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:00:56Z), 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/AR5UH2402136.
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 0xc8797190869cacbf7339d2157666ab8f9f2bac1470e15f246e91c9554b14c8a5. 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/AR5UH2401616.