1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf7bfef9284d4a884542937923bb05f0ea0b6930e4fe5597d99571c1be4fedc91. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d8b374d-a4f8-49e7-9bbd-95c63a1bd449.json and https://artists.proofprofile.net/proofs/artist/5d8b374d-a4f8-49e7-9bbd-95c63a1bd449.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 → block OTSBitcoinBlock must exist at that height 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 0xf34ddeacd0c4cef792f56fbe6a55b2d1cd4e98dd726044d93166927e4a44061b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR6V82707676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb695b035199e39d5b2dcb280b965b00bc8ffaac856e5adccbf87bd0c53633d74. 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/FR6V82707680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8953908e49386d94209d2d40140bb792e4e5117df97842212d33cc0b5fbba2ae. 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/FR6V82707681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b29f13862a8c8ed2db91a51d9b45517ccd7a667db9ad31b9ba8d60afc46c179. 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/FRW511200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031e2e9a4c9ec7494807b74e37d1ac48c60993e2038bd28a74cbe4930fa736d2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRW511200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9028e98e00aa5d4f62705d7247019d84be993e13c16c4bf747814b97629716dc. 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/FRW511200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9c1c7ccba7fcdc411bdb0bc00e123e09e37d156b5f8113e9b3359ef2e39e02. 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/FRW511200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d9cefd9aeb0a63553750ac7a717b97997b6718ae6e64dfbc5358e7a5ad8680. 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/FRW511200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dc298ba41ac1ba4fe227bccc3818747cc670cafa6d8d5deba3cc7343472f5c. 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/FR6V80619484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe682df3d665248e34ef7e74138c638ce1ad231f8ef61114b28cee58c9756ef2d. 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/FR6V80619491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6ad47d14ae9634418c5fef1131b969d6154304cb7e12a57563524f536445b2. 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/FR6V80631790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218fc52c2890fb47a5bd3aca9c9c65f99dedfd46dbabff17984883f8e5f1561c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V80631799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18907b3e518ca67e4fc0e8877125dd4f4448240816ab406487728889b8337ee. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V80631805.
Biguine (Bande originale du film de Guy Deslauriers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b6aab62413441a5a38024a2e1c7ba85dd4a59e8b2af63ba124578414c71c26. 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/FR2X41556666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d968a3dd638466d22a432d28fc6713fc55fc0f7ee6f6295620eed90243d973. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR59R1715675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fa6785101549db1f758c8249c31885237bb1ce0d16edf42fb98da1f724641f. 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/FR9W11201423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ca01b18a64b27567e4e7b25d7d148b3e7f71e1613fe2873f39673d91f4998b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR6V81150522.
Ames Creoles (Les plus belles chansons créoles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5205b6c58a6d0a7ded9e3df84148e435168dc232fb5bf3bc6a23d358b3f482cf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR1S90600201.
Les plus belles chansons de Serge Bilé, vol. 3