{"copyright_id":"0x4b0c2b1a530c6367b9f7d9ed9bac52cb64c48c2cf8914fbc3adabe3f0ef0581d","name":"Bertrand Betsch","registered_at":"2026-06-20T08:15:37Z","symbol":"NIM1563721","token_address":"0x526fb7f9db014d8eb6ef2994fceb6de43d8d1b1b","type":"artist","uuid":"a77e9ab1-24f6-49c6-b4be-4fada2d5c5e6"}
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 0x4b0c2b1a530c6367b9f7d9ed9bac52cb64c48c2cf8914fbc3adabe3f0ef0581d. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a77e9ab1-24f6-49c6-b4be-4fada2d5c5e6.json and https://artists.proofprofile.net/proofs/artist/a77e9ab1-24f6-49c6-b4be-4fada2d5c5e6.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 0xbde8fe7b17da540c55970ba50fb586ff7e2ae51802164de47a30d51b334767c9. 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/FR7LO2300731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b38af8e691e9aa4237d964619e82ed483829bfdd68a3b57e39311cecf2ee05b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR7LO2300729.
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 0x8b49b8756c042c7683174289f9b56a998b0bf5b0601b1da32f4b7d14b5a32015. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/FR7LO2300730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82af292f89486c7dbe7046644c786dd9e524280c9368d22b655b6338a880cefc. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FR7LO2300733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262cccd19162e121367d82335bfc77400d23991f63fba1dc003004bbb0f01c6c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR7LO2300734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0d1dc4354e9c4f75be7098b12b03d3a76f2ec85d978be47aa5d175ae0078e4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR7LO2300735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8595ccccdc3139efce62a3ceaffe76d7d7c8ec03ea38f10c3c1fcda5dc84fda7. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR7LO2300737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e33506ce0eeebfe468f9607ff340ee2d7889cc6adf9eea13cdf2aca24b2a36. 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/FR7LO1900349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a85214ac873de5534c1a7385882f0190f3417c84d2a31c1d480a09a39f3af34. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR7LO1900347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159bd154bbf45b26b7e54b29dcf1b8442f847e9f53a9cb50ab513511b98c9408. 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/FR9W11507765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0e393af3affd0a88c0a013bb980ecf761374dcc9a101bae36d0d497233ba18. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR9W11507762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6d4621546003f829845c2b7f542a4758fca12d1eb9d6ca8a299305b4778753. 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/FRX850600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedf99c0fbaba2f56c88a4e0ec7cb3971a4380e60e4a10af53dbb632ae8537da. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/FRX850600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fafe37590dd5ce4d4bf95a30556b6834bd91d29ad1f8690b56d8b2df72ce63b. 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/FRX850600113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49933ee279f69c4cc61d4f6d95580144aedf91998c988fc0c9fe6f14ef8ebf4d. 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/FRS940300188.
Vienne la Nuit et sonne l'Heure (Version Edit)
Au calme, les citoyens! (Vacances et chanson française)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f619efd53254503b8467d206d8cbfacb6a5ef63b6738ee8a7acb075576fb68. 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/FRU451600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02121211c4b306278d981638f491b37bf2525a0f61fb8eb7b09bb425cc6bdbc8. 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/FR9W11709762.