thumb|Sory Kandia Kouyaté Sorya Kandia Kouyaté was a Guinean singer, considered at his early death in 1977 "one of the most powerful and mesmerizing African singers alive." Known for his powerful voic
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 0xa6db3fcfa5addc112ba0c79fd0824b4905931a3a86cc1505ac2089004c0755db. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f84bbcb-1d35-44a5-bbfd-8204a37c8cdc.json and https://artists.proofprofile.net/proofs/artist/5f84bbcb-1d35-44a5-bbfd-8204a37c8cdc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Grand Prix de l'Académie Charles Cros 1970 (Bolibana Collection)
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 0x77e0fe5d958bac397c6b2dab50d3510310d09d9b4a8ea0eb80a4a6f6d4e15745. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBNRN1236010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e0fe5d958bac397c6b2dab50d3510310d09d9b4a8ea0eb80a4a6f6d4e15745. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBNRN1236010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cc65bbfd8c32331b49b1a9d50bf374d3bca18b7e50c28a155214c71c964cd7. 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/GBNRN1236110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb3d86073d1fcf7fefd259cf4c317ea36de9399954cb5f3579361747c54be92. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBNRN1236105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1909b3a878d588c880af3291edcf22fab33a96e10d54a8a295fb183240f8f43. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBNRN1236103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6ad57ae96fc593ce377b92f9c2cd0237a929558e02c93a586b2bea48debe82. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:55:24Z), 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/GBNRN1236101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fbd2801d356ac1ed866692e77eaf66589dbfe113cc83e0afa28e681bbee4bd. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/GBNRN1236008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a8cacb02f1a38d9d41e378c2c60d63edd7c4cb15bc06ab4367d7ae772c56da. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBNRN1236108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cc65bbfd8c32331b49b1a9d50bf374d3bca18b7e50c28a155214c71c964cd7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBNRN1236110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb3d86073d1fcf7fefd259cf4c317ea36de9399954cb5f3579361747c54be92. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBNRN1236105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33a0a6f5c07a7c188192b3f2026581ffabe1e72fdefde6414a379c1ab77eaa6. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBNRN1236106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1909b3a878d588c880af3291edcf22fab33a96e10d54a8a295fb183240f8f43. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBNRN1236103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6ad57ae96fc593ce377b92f9c2cd0237a929558e02c93a586b2bea48debe82. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBNRN1236101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde180a073a627e770aba4fbd23bac1ca7b7bb87a4a437f3e7ab0aa4eea66f096. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/GBNRN1236102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a8cacb02f1a38d9d41e378c2c60d63edd7c4cb15bc06ab4367d7ae772c56da. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBNRN1236108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fbd2801d356ac1ed866692e77eaf66589dbfe113cc83e0afa28e681bbee4bd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBNRN1236008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e25748ee7f055c1c0d9c16b58f3497ab448e47c774cef1375a87f5ddccb2054. 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/GBNRN1236107.