thumb|Beautiful Nubia in performance, 2012 thumb|upright|Beautiful Nubia at a concert in Ilorin, 2015 Beautiful Nubia is the performing name for Segun Akinlolu (born 11 November 1968), a Nigerian-bor
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 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 0x33eb74fbc23734f25070f9fe623745b578a012b81e35866522e4783607f24a51. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8c464e2-bd0c-4029-a74d-249e2ec887e4.json and https://artists.proofprofile.net/proofs/artist/a8c464e2-bd0c-4029-a74d-249e2ec887e4.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 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 0x19bd491a4f9ebc79a3102d3d8af7dd03780154fef1538471600b378bcf989f3c. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/CAEA11400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd074c2d1c28a6eee0bec26fadbaade76d10a494d2e6f7fc95f95d37e13d1a56. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:01Z), 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/CAEA11400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a36b159f092657d3ce6ec1d3d7211ea3fd9c4e51fc82c5e79f84a108efcff9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CAEA11400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf728b04300445d581346b8a1719460cfedd14bfadfa9ee2966f34b61ba40dd2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CAEA11400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc253a8cca7fce6f82ba49fee92a7166e7e6eedb6caf1bc2af66cdcf71dddee. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/CAEA11700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf636952be34e0cfc48f6079513dfff1867d76e401358196839d7700d53b787a4. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CAEA11700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5ad82ab5c6b43626edd92ba2381771e43970b2741a38c3e00b51fc87b6e53f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/CAEA11700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3688a5356b0412f8b282775e9728953020cb83b4b6a689f9ac53c36b3d89ae. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAEA11700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe622730c18fd3e00387210a0c93b4e6a1089a419c5b33c14d56bb6e391ff3fbf. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CAEA11900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584c79643cd642b857d5a6fd333ae879b1c003058376066c6a59f61403adbd57. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/CAEA11900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a92ef6d397360cfc417b2a921e72384e2e95054b6bff5df65d6d3db8568b015. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/CAEA11900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261ae3fe905a9e6dc4c56fd733f65b7f146bbab9142a736d3a77eed7c301286c. 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/CAEA11900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084bbedef2a7f7a57f32cdd6b086e28a43baee1819ed9e82f73ca06350fe1b61. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAEA12000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aaa7daca13634a587de1a9a2226d0b05fcfe78ca55504f17fd4764ce96a77bb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CAEA12000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2824a159927262b9ecf2abead6c683f25ad3901c8e3a7898a124913ad13745d2. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:50:42Z), 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/CAEA12100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28222a41844fbb10082a7761426c9f9f4b5d53bd8f4449f0041e1655d678604b. 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/CAEA12100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e7ec51e9176c7b10fc9bfa277f410f8c84776ec459e266d47f57af86998be8. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CAEA12100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60143ae3705fc0bcebcf5fe430ec8919e1d1b2895e1e44a3cabaa307678a1d09. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/CAEA12100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09b9651a1aeca1ce60999ac5cae7e429ff3d4165e2332302182d17f70040126. 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/CAEA12100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc689fa63b762157b3f4f8b424b4e0a156bb76c9fefed428750a066b0942315a. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/CAEA12200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73487f7c44e2433c229fb00ab3fad41bde1abe18c5c70f66522bef6c22533e9e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CAEA12200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36d6ad8f2e99c9499cf2e9c9fe89ef93b3b2cd0ebe531bf4710334994652ba2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAEA12200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cee388af83f20d9eb42eaf5164fbc5abbee704fb098a11b8bce9f299c908624. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/CAEA12300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8b21f16c0b674537eb919447deebe70790ccbb3014e4cba88415dddc77e36d. 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/CAEA12300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f640597a20a93e6a484174b52cdc45984dfbe3a14da551174d5e6a993dbf99. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/CAEA12300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bfaff88eb8d7cccfd1427de50ec95e844def50c54f7281eef48616aa5b56b0. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/CAEA12300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66952b716ed0676093b0530c8c3d1584d0466db9832fcacb81834eef9f0e01f6. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:27:40Z), 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/CAEA12500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00371e61296b80a3f7b4eb7b81473230833870f002a06ec94e61bae46f658536. 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/CAEA12500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1a2db1949d392a7a7e93f31643cb2af6a23baa1a6ecf289f1dbefcc13a36ae. 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/CAEA12500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70b566513bedd2d047202b94c8ab5c062797f46ba3d02011da060785a73a0ef. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAEA12500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bdac6618afd22b0362496fedc9e6289f17d0d9f0e00e0a11bc8f48c7fc7469. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/CAEA12500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9285b435927e1f11a5e6a2eeeb47d5fcadefc814e23e77e8e9a578378f3f6808. 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/CAEA12500009.