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 0x5fa3383dbd12a603d2fdd63df05ea1b31542aa8be6c10c57e907bb2e632f04a4. 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/4d291016-6417-44fc-8b8e-3de12f0991dd.json and https://artists.proofprofile.net/proofs/artist/4d291016-6417-44fc-8b8e-3de12f0991dd.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 0x5abc2b4f66a0d34fec0188998cd165743204d439a16770f1c077b1aaa040f1e2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US6R21372016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9769a8fd9c6da9708b5f52c767887c4590098d5465ea04cbec9296da03f4eb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/COA942300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9769a8fd9c6da9708b5f52c767887c4590098d5465ea04cbec9296da03f4eb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/COA942300160.
Feliz Año - Medley El Año Viejo / Año Nuevo Vida Nueva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae509bdc964de4c2418a2c655ea891fe8e8d0d78cff902fca870095333ed523. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/COA942300180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb519aff29b0518685ee42b92bfdc9d43aaf76b0db78ab233a8fe896963a866. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/COA942300120.
Burros y Burritos - Medley Arre Borriquito / Hacia Belén va una Burra / El Burrito Sabanero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668a3a976b197c05f5aa5c6b7d204baf2ce371f564af0c56ea281b1e36ce8fd4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/COA942300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2745e264a3b996f7c8c25b85e17634d6b3a7794a9a5d3ed3ad0ce06d1d6e6faf. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/COA942300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22778869a61d968e8d419d33f7da30b606b9d55e3663988d8a4e423137e010a0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/COA941800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fb37ad0f4b8970168ae1a220fd7c39b3c6ba65fb5337f3941c7502a104b6e6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/COA941800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96deb30b6cfa4848c7367476e53e0828cdcbbb29a4fe60fbe4fbdf00745a2cbc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/COA941800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fd0842edbc77982e855300819b690a688f404a8071b240344b1353c91f0f2d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/COA941800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422b2be5d3754c3f20e6215e32642c103c61bfa1cbdee18300cb912bc34432c3. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/COA941800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92fb67c68d8b1e7581d37f517b4e5a385a67e464cb732d549beafe20f912ed6. 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/ES71G2430728.
Navidad Rock (Medley Sueño de Navidad / Dulce Navidad)
FELIZ AÑO (Medley El Año Viejo / Año Nuevo Vida Nueva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028932a20eac74baf8b4701c99999184b97edef1c1660deeda697377c0f67c25. 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/QZTVM2247425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dbda9ae0479c2152ec0a4c4de9933e6aa9977db1f667b2cb04e8bdc1ae7e63. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZW9M2207067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa1624fa56e1db4ca60c8598b589bbe8015dddc048021da4d25657c1219d134. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGLS2308363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8382b5758c137d04aacabcc510b4f7b148d6fd4671ee3056993c2e28aa8138b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGLS2308364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe013fcc48d7bbc43c68b9ecf255300a7739c2dd5279bd7449a7527b4278c4e2e. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZGLS2308365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf172c3eec8d26a2094d279062be78eeb268fdbdcc52022f179b79fa1f80bb07e. 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/QZHZ32098391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa453c2e610e9c711251113ac081008a0c07ca26bbb91a2afca8e0f05f4271389. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZGLS1955692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf58dfcce5b64ea99ad287784c42d4bd1c37db4dbecd6c2055a9e00095086ec. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNJX2000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48f6bbaa1ce4058af1878b70e5765a5c4dfca930056964fc4437477bbc9c6a9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNJX2000114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c18e72b7ef52aa4a44734658cbbeac80f2ed5043f91e88fe8a55e82c078671. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZMZ92049746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13c447f5ed72743286273102706e281962cf0db28e9d126bae9b3a2c804f7d3. 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/QZHZ51950600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5badb9c7968ee41102ad9959c4c016be815c39ab72b8e7c7c4029dfab44136b5. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZMZ92049664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df2106ffdb88da379facb3fbf123217c8cf5592f9f59eed01093dd0296b2918. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/COBH11400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fa4c5860d6536de5eb62e8d86cff8648d9225772d545672d2f60d0325227a7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/COBH11400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccd0d50728502e24f8010342974a62285b078a3bada470ae15b17a2cedc6908. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/COBH11400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663107b6070876fa6bc2313718b89d938b6bc6d764de5b5c92d61695c5d325cc. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/COBH11400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a603ecb3a0f8c1a0d727d584c39eacc408f413673b85b11a4fff023840f91a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/COBH11400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a270d4256cf2199000fff8800316f864f082e4c6415f8bc4be70b4e524ad2f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/COBH11400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dbb27babe10e132f5cbc71e4051d735a056e3e438f6ee77d0d63f78ff34cc5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/COBH11400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbd4ba40750186f0c0e93aeb2ecf77a7d2eaec4818fc26c974dcfb1c575a30b. 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/COBH11400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5fa343c664fb650665147a14499055d318c806757095108f233adc53e200b2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/COBH11400009.