Prince Nico Mbarga & Rocafil Jazz International
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 0x94fe1c7f04d8f153b8cfc270f25d3a0a5bdb6951442823dba7a7a77fa9834647. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/419c4d84-b3fb-4bc7-813a-0dd8598eb292.json and https://artists.proofprofile.net/proofs/artist/419c4d84-b3fb-4bc7-813a-0dd8598eb292.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 0x219c56ec24dc528a68b06dd5f7516837a88a558ee449f245a6df43828e6bfcfa. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCACT1604689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f7689c99d7791624a18cb30b2199f49e662792c46ac66a39f19a438c781d0a. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCACT1653262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79334daf1711963298261cbd2e6f8e32030a36cb25fc9911186ae2dd35b5e916. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCADM1858483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdbe6d09d0b621ad5f564e878bf4b9ed285b46364146d864b53e7d9a5e41b2c. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:47:53Z), 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/TCADM1858484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2799774cc9d214debb1500c32eab57d04858ba6f32fd6f93488b2c4e6c5cfd7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCADM1858486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326c566827efaa6004321a16a9b7a00c27c04d562e5066fd724063297a0081c4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCADM1858492.
Prince Nico Mbarga & Rocafil Jazz International Compilation Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f24a98c9b0c32d2bdfe438f1b8e32174d9c60102e8a882215fca66bd827d4de. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAFF2016786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeb9d08965756804b974023096315f66400fd8620d1b4fd039467f4674820c5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCAFF2016843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a75f264cd89117f81ca19dff2069d4be34cee3d7e4f6e9933aeb36ac64a098. 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/ES8590900232.