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 0xd1e7819f19a0c7832c1a9d9a57b97945c798d45afbd30e49be64a4359946bd49. 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/59233712-088d-421b-8385-b7f9e6a23ee1.json and https://artists.proofprofile.net/proofs/artist/59233712-088d-421b-8385-b7f9e6a23ee1.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 0x54166c73d14a1dc6a2d52e382da4cb26959abecf565ced681c2f1db3bec94097. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TCADY1875628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3203f69cc422da83c22032de479fcd5e95c45dbe6e603292243c0930603efc12. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TCAEB1904016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab4acbdd7675049a7d8ab43bf959cb542b33a9f7463c0a675ea9133836764d7. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TCAEB1903814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca08686986b798459e15a95665a0fb2c420a06e7322abe3bd5dd916f8667458. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:29:21Z), 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/TCAEC1923089.
YO QUE NO LLORO NUNCA, SIEMPRE QUE LLORAS TE LLORO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf158ecb6938c9f0b0d9ea48a682a7865478c04c9fd7d92df3299594349ec4139. 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/TCAIT2412661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2eac7a10595fb8b4de679245b3f85f66381804ae48dbcf2848beedff16c94a. 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/ES5022302455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ba9de68c9476cb9618bca7de452ad28af34cc4b1eb9edaad9a13bfc4ccd4fc. 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/ES5022000454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b163944e6425ccb6a328cd34cac43fbb484e386b10f498b1ab80dc3c7fe8d20. 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/ES5152201041.