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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bf771ad35b2108c0e578638f8940887853aba4f0ed563272720c35ac6af498. 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/58f69965-3e0c-4338-a181-6e13f4eb27d0.json and https://artists.proofprofile.net/proofs/artist/58f69965-3e0c-4338-a181-6e13f4eb27d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Intro (Feat. Banda Semilla & Torre Fuerte)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f100c3105de4d54962726298eae9d5b1cf4e55f5337a68283e9dbc1ffc95db. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USHM81198690.
Tu x Mi (Feat. Torre Fuerte, Heriberto Hermosillo, Hector Hermosillo & Banda Semilla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28def43f16c4c8e3b4fb36b0e3cedca3e60dfebf4d9e72af59c804b2de8d1295. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USHM81198698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db56901e3c409541b885c99761ed24bc08b2953a6f2a83de70b47d366e6db21. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T04:51:41Z), 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/USCGJ1260104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d94814162d7d5d46340272a8cea5ff40015d208e88a52df432e3ffa5f5bcff. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USCGJ1260106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f09034b5fb8a5f05e09a1880fc77693cf57c51579d8d9464eab3544e0cc6a58. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/USCGJ1260107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9c94f606ed79224e96c4a49a7bde8be0d143e0d01ab8c6d1bc5bd012e6875e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USCGJ1260108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d629a75caf0655e704ed922bbbcae90df038daaeda70e804a9de287e006d3b1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USCGJ1260109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b4909fae58926b3d918bbea39e8086500405e34f3bbbbe1e9ce260d44bae9a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USCGJ1260110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09fb2916f05e7397bf38ab128bc4cec8af983df973a32412e52756651f14a3b. 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/USCGJ1260111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2661b1cc6a041c78c1cb89d688e4c41698240b0b9e1baef81d0eec6c5452fb12. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:48:21Z), 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/USCGJ1260112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd33d0d2a7eccfa05cc137116fc5965a811498f613d32c2270bdc1817e81830c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USCGJ1260113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584e4224da7c16ddfdb06089d88c7d9ef63f94401f702a08d0707bf6a4edaaa0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USHM91124373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dca0754d87abfeed808228cd2bbb404d323ddb1ca4a9f8a7d7b49565b1fab21. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZNJY2446943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5d8e4b0bc7a530749e44f6f329154e8ed354ce3d9f7aeb478c23852f5f1f47. 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/QZNJY2446945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb868fea15acf0c72be2e545f319c408472526614842fecea241785edb7161d4d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBSMU6281914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa081ea5995b8fa3c89022e0ef215919790fbe60d2c7b55df613a9146d5ddb369. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBSMU6281915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b36d7cbd53945e4a5c0bdaa4e6acb552d41b26a422aa80b05802868801628f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBSMU6281916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b8c491a631f3781e0e00cd2806b36860e4fc5b04b90ce0e214632ab4708a91. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBSMU6281917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9181e2f504de5cfa399816085ba2e28fee69f59673d331505e7188a7440b17cd. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/GBSMU6281918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f703eb06451353fb44e18f4aad9d749ca86b57b75ad2441e26726553c16d66. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBSMU6281919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe286819090f6bcd9ebea5d5db7149233343e6550935e43159ba01b08081e4627. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBSMU6281921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7360c479a22bcb89b2f1a0baa66cc2d206aad7c0f3c1c3640cfe3e7540c2d47. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNWT2389849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b68b5b997a8334b02fdc2b51ac35077486546d78e818d3ff673c1c32e22d88. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZNWT2329737.