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 0x11ed014f2786e57227729ab0f8ffe3e8fea478c96efa5ed6f6f02e92351ee088. 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/162fdacb-1471-4c7f-b13f-f586d286ae6c.json and https://artists.proofprofile.net/proofs/artist/162fdacb-1471-4c7f-b13f-f586d286ae6c.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 0xcc71cfd04426fe0c0d148626798f606a9093e57cc63c0f740f2811b1290b14db. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWV2285518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2c0b7d76b248878ea1bf60784ddc642ce825fdc2467d4444597c4cac7820c5. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZNWV2285521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cef2d793d166c48ce3f997c8943b79c2d7ae5d4e36c8acc6f645fea137c478. 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/QZNWV2285523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816ef230e3c7a9f68af56534213b46c697d82bd8cd9ca87365cb4adb2ac6cd42. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWV2285524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba78a62a9e611a0767544226ec2a803d9a17fed57a25f6ad510ac8c7ea160358. 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/QZNWV2285525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da1249f2af8b3f1d8a8b7da9cc4aa12ad42873f952ee02018c381d13028ed99. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZNWV2285527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495501e11036d9ef09b881b797afa18c9cce1d2c21b0e1641e490ed7f26c9c9d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWV2285528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67bf1cbffb08e78819d3345a5fce63e81d5b764362b14953e5d197ef9455bcb. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZNWV2285529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6480597d780034f074c669f1465d0e057189bd954ad50d838f08fa00ff9bf716. 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/QZNWV2285530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3958a28998f01b1dca504dadcc5c013eab47728bca4fb501860b346a6c65cc07. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWV2285531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c0aa6e0e66c177f50655e443823b56ee67bc5bf652678088ee5dc7d71f4d4e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZNWV2285517.
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 0x4a96d33d4c3feb692af310708d37814a0f5f39a3d108afb59034fcb9cf5719d2. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZNWV2285519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741be01d674a7ccc6230d9c42da8902be432436f016abaef1d05d47b38d98239. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZNWV2285520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ea9e56f750b909bd189997968327b41da1b2cbb9796e37b14589423b1ceaf7. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZNWV2285522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ce28d64859dc4d24eb72968c8b0c766a8a2167df5b86c76aa60902ad8b667d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZNWV2285526.
La Cassette Vol. 2 : BIENVENUE DANS LE TRAIN FANTÔME
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fb89c8f781c47d338d3358495fb4dfc29a2a7bf482dd8e4ff0a720dbeb7f68. 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/QT3F22499490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaa47bc0df8cdcfd519d30f0a199e60f7d329a85dc22db6692551722d3d99f6. 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/QT3F22499491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf48c44431116e45b7f8e72cd2303203b8da3652f8ed619742de682e1c2c016b. 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/QT3F22499492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da29f9604571fa070d4ed3b8b2d3ee24b237b28491886efacc6ac1504f797a6. 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/QT3F22499493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e51aa580c9053167c669c7af00f523b34ae3339c63480193c4c876c3b67922. 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/QT3F22499494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e45c43021b8ba93f6771cb2178be1c9ace1b72c1d0bf3468e92bb29bd35ab29. 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/QT3F22499495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d12a71d744009bb45c3ee3460ad29753067abad0112f1b536effaec0448ff9. 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/QT3F22499496.
Ça joue les millionnaires avec vos fakes chainzs mais ça peut pas rec un couplet ?!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a54ea7f030518c3dc1a6fcd3d3d1f754be556efb7fda9cd4e20fd6377043a85. 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/QT3F22499497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b26539c19f9bf830d5ececa4763dabe71c81b210e1e75d8453f0beb0c1ec3c1. 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/QT3F22499498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d7b6139e8dcbcb47b6466356bc8bdd7ebbac4d6aba5fb339c4e47af2c50615. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QT3F22499499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437d85b3581ee6c393289abae5590cf6b505c6b6bba326eae8f2584708fce5a3. 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/QT3F22499500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7710cf2bee9fef3f4047e751397b6d231dd756770c0a9b6e45a2929fef55a3a6. 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/QT3F22499501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde536f36ceb97ae9f530755d1f0c06ef8b20d3fc841b5db2fd934043e3376f1d. 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/QT3F22499502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c5252c742eb7dfcb54ab2692a9ccdba5279d9b8b61c57ad8c4ffdf9339ad02. 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/QT3F22499503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943200a45f9d86d8c3cd653464ca8a24203e027549161977b736933944139c4f. 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/QT3F22499504.