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 0x4652cc7874db7c85766c0c865dee38cd39af57fa2f53394f7d990f3dfd8436a7. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a92cc7b-7813-4fcd-b903-673aa5354c86.json and https://artists.proofprofile.net/proofs/artist/1a92cc7b-7813-4fcd-b903-673aa5354c86.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 0x4a0c594bf8926146b13370255afe28e2704d3301f9340e46a826c1708ffb8c3f. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/SEYOK1940179.
Je voudrais rester seule avec toi - Dour Le Pottier Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1ed35c64fddcdfdf0c323f52304d52fce3dfd31fc74a29ca6243b04e10ac85. 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/SEYOK1940180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d7086c29b60a522f993baa6a4e293f88f1cef5a6a562d84b5d91c4e51e267f. 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/SEYOK1940181.
Le pays des gens sans mémoire - Snaamaarwaar Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8af3a2cb580c8b6c9365664fda97530ad3b578cbb02b2b772081693534cb982. 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/SEYOK1940183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8a54db1c5fb842129def2247c42eb97c39c2bf6883ac98d882b6638ab9f31a. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/SEYOK1940177.
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
La corde de la ficelle - La Ficelle Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cce0bd9de6a7064d2b4756b0b3baeb717042f43f7a726eabbe0d00fd3935d3. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/SEYOK1940178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ae9ad5a28fc526405352655b8bb7a47e93a5e5f1ed4b617c50d32bf125729f. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/SEYOK1940182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc066de547c35d6ff76901370adb5cff449253fd5e4bfc568712d3a8d2ec71ca3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SEYOK1940184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788702d516750f670e19d821e4dd5149dda58a2daf238fdf4576a20d7647ee9a. 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/SEYOK2413177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17a64ac319207d929dad29fd6a131c0e821bda6c4ab1de2459a83676cd63901. 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/SEYOK2413179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec03f31b422152f119e59948db1256c477be0634dadb81b746e8a75dd935d66. 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/SEYOK2413180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1964237781c9812b57d5035a4f9bcdf29afb79ec30e8ff6a52822c251ce89106. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEYOK2413181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6871750ee591aba29bae0a6933892515ae9f14c590fd589fa809559c0ebc93. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/SEYOK2413182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381d7b01bd0544089b4b92b11504ef0a0ca6c3819211fe6c4d310a13401cc2a3. 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/SEYOK2413183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20aeb1eb6ae6de0a4f15d94a441faf6b24c78bcfa3fb02a29d701b12cb3b4064. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/SEYOK2413178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0d1fe29003b66c8ac3f0a999f31ae4d2d567228b0b0790e719bb83e0c199b9. 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/SEYOK2211493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5c8b016a0791b33a59f760ef6d4bc47a323e1a2b36b0684e67b5cc96c0dea4. 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/SEYOK2211494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1e33fcc4690b93bc6d60942bbc1d19ab6362511cdb947bb5d3dad3618a985a. 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/SEYOK2211495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ca896e8b6b9dedab45db20e64d1238f99b95c9e5e9942765aa6ae3f70ae279. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SEYOK2211496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd246681f1e57fd599be7f0aa05973a6d69e1d3944b01c5f32ce77eecb486b231. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/SEYOK2211497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fcbd76d6f98f744911f63bdbb0d0339cedb288ce0761c87e528f2a8bf8319e. 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/SEYOK2211498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb9c47fc977a0b96cba55be50718fae4b1006cb7191524b81400839749b3e70. 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/SEYOK2211499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0395cc407b38970447593796a34c9761ba7899cd024a4f8f8e9cf8c23233e6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEYOK2211501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891fd9406b5e879df5c4f026586e660f79014408c8729dd40792512bb0dc2333. 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/SEYOK2211502.
Noir (Suite de bransle de Sebastien Bertrand et Christian Pacher)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28396241ade6151ab330c8fb3a503fdb8a3500d2b3dcf0901db1f795cec241f1. 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/SEYOK2211503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b1f34bec23248eb0c8c98b307cf157e3d3cddb0a9f41add058e9efb01cfab3. 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/SEYOK2318850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9169b93498829aadd7bc41f73d583a395680b13f69a8510e6f5ec85140e2e6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FXR752405530.