Beautiful Nubia and the Roots Renaissance Band
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 0xe46e53da14f095f1e3b75954e1c4915673957b004482703c06ebad07d1c52af5. 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/0044420e-135f-40fd-878b-b95af524018a.json and https://artists.proofprofile.net/proofs/artist/0044420e-135f-40fd-878b-b95af524018a.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 0x3c0b7cd821725e122cd3c856ab00f9bbea5533518f32ab555b2b522af2b52efc. 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/CAEA10500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bc24a4ebbad33c3b1457c3b0d9671be6c3cc210b5da999ed0d59f385efad94. 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/CAEA10500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8ef04dd7e7334ca08a5190de231807578b591077658ed1ef21924d2e2a538a. 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/CAEA10500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c324b5fc0b95b3e530a21956bf8a8d4e94540fccc1d4dcb4c7dd391b6f3e19. 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/CAEA10500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9197e41e271bdbe42f4d1744354db7ebcecfeeea23f1e21054699e93902b335. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/CAEA10500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb315d035093b2188c6a501d5d4e354cbc588c69200fc2e878133afa5e83275. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/CAEA10500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83fe4be0e1819ef6bd8540da647747e6807cb8e9c5684cac3a315d02ff082a0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CAEA10500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4f045abfb7344bf28ffccee31e81bdd3a1238a89f9ceaa2cd5c02d80fde79c. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:06:40Z), 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/CAEA10600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d364b42eb8805a95f4e2269d0e90c9c01b2b99f1ff93d2e9197a95d4d5aedc. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:01:27Z), 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/CAEA10600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9d082765a4ca4f8528fe7a318384c99d5a89db5f91b7838fae6ad5fbe425e2. 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/CAEA10600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f0830d78ef730e9fc60172040d2ee40acbb9af4c36203ae4077acbbbfe384f. 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/CAEA10700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650df757853b6ed3e2f7efb5d5b21b86e10905befc78f59b8d1fc307add44214. 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/CAEA10700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50aae0339438546a443f21de00f80d20952938a1a36a5c4cc9f9b9b336de38b7. 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/CAEA10700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229a73e0755cadc3e63bd000d8b47bd43b1bb8b563d861afa579ce12c74947b4. 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/CAEA10900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426bb80f8872b690e2357849fdcd310f8a5b0af3c3934a430354033ace34f325. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/CAEA10900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6910177d31482cf9ce284605b1ae9ce5aab06273642c17902c89a89e9c382d91. 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/CAEA10900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca909dce5566edc982e59466097b20bd627ccd3124d7ed162b26b822d1bde98. 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/CAEA10900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cadf91087960c06bd8b346c539ebb1bf736d95589703d1cf37594b56113f823. 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/CAEA11100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b21bf31ea36db86241b4be2a606dff690133a4cd3ab428f1b7f08664565dfac. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:49:57Z), 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/CAEA11100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d30ae22497c5e998c55a01f391077bcb0a58b631d4ccd1192f6ebfb58b3a04. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:11:02Z), 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/CAEA11100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7732bb26c1439ae53c9fbef4cac955201743e7a64136e15c3c9c66d409c40602. 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/CAEA11200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a35c21a4f24296dd367f828a35e71a7566c799d448c742d16697c5c6161cc8. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:48:55Z), 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/CAEA11200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe566dee98456461f0a868e23e6611054095c1b5a626fcacb1c7cbab4f392b402. 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/CAEA11500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca57910cb5d1d40f534393b43c2d6f4d0f415239376c4d7bd586cf54df04dd8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T08:57:32Z), 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/CAEA11500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8c2a3c738ac1ce7cf5041a89cd654b183cea71da6e9384f202ec1865d08527. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/CAEA11600009.
Jangbalajùgbú (20th Anniversary Release)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e53f619deeb71d7d1e960f6f6c1465c69a09ccfbdb03f6077f701b9dd451f8. 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/CAEA12200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfba4a7ba3c8c1861a5d989c18e4209695262e4fb33c487a2ec250c790944db. 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/CAEA12300009.