1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8baeb696e112c6e60b75fac4ca0772b4db46a5120f6d356ecd1ba5f92aeeb0ed. 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/b9184082-dd3d-4343-9cc9-e1a3ceb83bd4.json and https://artists.proofprofile.net/proofs/artist/b9184082-dd3d-4343-9cc9-e1a3ceb83bd4.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 → block OTSBitcoinBlock must exist at that height 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 0x446008e4ac0efdc1df6b3013e2f431553fa1fe992941c3015d761cada5b5cce3. 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/QZHNC1961404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf554ba68dc79ff5b213373ff7597a1f9fab06f1dd6ecb68211045e94022921. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZHNC1961405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b41a812442230bb4bb96eb2daf43a34d4e53f2c35360b2a61fe40bf858c3bae. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ESA012456868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e0b2bf1ee671d2bc8ce29b220910ca11e202ce943b438755862026297feb38. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ESA012456869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95666cf4c14c8a16e784c04e1c3cead5bdd99a4836e99397c3bfb97b56ab2bec. 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/ESA012456871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefae526b5e2e697be2c09762bdb1c967ef0d6e41d84f0eafa6831c06eb6f111. 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/US23A1596665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb049f53cceebe2e95a30e21aa57394d0e5116aaf9c89aedd3ff4d926db9bd34d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:51:27Z), 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/US23A1596666.
Fuera del Tiempo (Postales de una Pausa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa877d6559a0c1d14c118d859cd7a6f100d451fc86d213e07d0e95d18bd5dea9d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX202095680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f42511bb3a163cb439f4d9237e1c1df2df6fd51e591d45c9288fe487cb2734. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US83Z2471663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681498fea2896d139ccf8f4912b8aa000dbaa2437face2541240aeddbd95a6f9. 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/US83Z2471664.
Cuando Vengan a Buscarme - Cuervo Cuervo Remix
Viaje Lunar - Reimagined Mix (Putumayo Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262cd58c08291b9dc73065cfefbd210b8001d0ceb492d7984780b7c82db5c397. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US6QR2400076.