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 0x2556dea1cd60272a8f2e26f0f41f9cf760529a049ed09c668e0a923f723f1b3c. 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/6725bbe7-6d98-40ac-baed-df0b588cc228.json and https://artists.proofprofile.net/proofs/artist/6725bbe7-6d98-40ac-baed-df0b588cc228.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 0x3614e7e068e384daad4a938cc44e4a2ff38bcedb89a73ee3ba7ac66f8b75bc32. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE5BU1935088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a588a5aed8098fd129e2e1861c3eaa79d8771a7610e6ed9d122d74755f2223. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:10:16Z), 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/SE5752095301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a588a5aed8098fd129e2e1861c3eaa79d8771a7610e6ed9d122d74755f2223. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/SE5752095301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138048f83718fa95e8c31999ec19a442669422d9bd133a3fe322877c699566ea. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZMZ92375064.
Yo Solo Quiero Amor Requinto (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948384def416aa9a952c7aa4b7246e777e1e0cf06ae79f78e671238d96ae782d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE5752030259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb0d1a06dc7fe35cc018c212c0f31a5ed0f07a86bde7a24dcff95f44c814999. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/SE6A92061105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb0d1a06dc7fe35cc018c212c0f31a5ed0f07a86bde7a24dcff95f44c814999. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:43:29Z), 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/SE6A92061105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93da2965b93a017e4406b980012157a67044e4066070452f8d77c11d6d51e86b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZMZ92375355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188c9c1e9a584c260397d01c4ccebf450af783ea66af11bd66ab55418875214e. 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/QZMZ92375329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088b00fb52a7ea309f8e417ec3f8469b47dd4ffe557d56dda3aa9a15359138a1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE62M2235363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bffe9043180cbd20ff36877c5203fccc9757c82078a615b11dc273fe166b733. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNJX2371566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c1a551684ab5042f08e58b1ef98c2feaa0abc2902f98cea48e182504ab489e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZMZ92460735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de4a688dedfa77c7c9420a5c75fa3da839dcacc1f05a377e1804e3b8e0c62e1. 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/QZMZ92461992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b9ad252af681ccf45cf3391011e3816c6214ea509f777835796a2913b7104e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:46:19Z), 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/QZNJW2499533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e84541041b348a6380b8e1b07be5075fecaf0f113f4aab2e40f0bf160c4e4e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNJX2490003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158d6695c2c53834eaff40b58b16970222b8b8bf33d4520e6689dc4f6b83a963. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNJY2430451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8f6284dccb8f1fd5c495c6450b1b2e80fbe1dc6e928ea1add7cd48afd64ac5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZGLM2551262.