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 0x4cfe235b4a3fecf74a48b1199f7d198a4c54e1ee74796bfd72b4bcddeaf87160. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad6fa643-dd54-469b-9650-3624809861dc.json and https://artists.proofprofile.net/proofs/artist/ad6fa643-dd54-469b-9650-3624809861dc.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 0x6679d3e7ca708baad000aad6c8913f365bd62aea3206b31936808c952df08a9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USMP60260671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7478842d6044d8ccb4ea86068c2ce7d22995bdb36c6005f702fb993a9bc44416. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USMP60260674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe95527d248ca0cabd37300eb37fdf9ea5a095047166c5d7f461562c9b749b79. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USMP60260676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17350d10040f3a5154eca23a72e735351279f9c27fe767a13ed193f5ecc90d0. 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/USMP60060371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb403f217c6675cd2317688b4dff04dee56bf9c99b9ba3868b853dd8c5a744fa5. 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/USMP60060373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7719e062506f00c51022f7e95aa31b825746c19622619ea4ead057cf3063b028. 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/USMP60060377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966b73955c63b85446c0e1926e7dd65ef5cee7a19604c77071c2b093acafeb11. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USMP60960021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79deaaa3bb7d2c6b2264849f5bee9b66c01725433dc40ad9865283948c0043ba. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USMP60960131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b1bbd6f915406bf182bb5861ea1249dc368d01e45cae9de9bbc71c9114bb5c. 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/USMP60960138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7e2174caf9e6d7af67655538081475411c96936408a986560ab8aebcc602a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USMP60361043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6679d3e7ca708baad000aad6c8913f365bd62aea3206b31936808c952df08a9b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USMP60260671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45055d21db132c4d778adc3c79b9d6f133871b9e9f1cb3a459481d98bc2337e2. 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/USMP60960144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbca9d3782ba38e59162d9b5fc962b35505461ff16dbc6e86b2993855c8e84b. 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/USMP69160582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd773f4c563c9a785072627f989ab0e797ef1f724307c7cde6b6cf2a7dcd212de. 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/USMP60060311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f79a77d3b8c84d6af089e714b85ccae695230383f22103c55b49f93637f02e6. 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/USMP60561573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16be887326b328b00eb3c798205e39eb9de6247b8b314fc23d1a9589c04525b. 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/US3Z40407324.
Me Niegas Tanto Amor - 20/4 Series Versión
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427a6a850a2f72e8ab7b0e583ce84fd23683494a2b1415a54787a00bd4e72f84. 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/USMP61100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8cded4ff133357c510f5b94749417e3036c8b4ae6a2cc4f1a4e3ade0b6c43f. 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/USMP60060356.