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 0x654dd83f8ea6c2d06b671297c5ce6fc69743c72676d24af767aa4fef2b6f4372. 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/6fe4d2dd-4c15-4aae-a51d-4a77a548da4a.json and https://artists.proofprofile.net/proofs/artist/6fe4d2dd-4c15-4aae-a51d-4a77a548da4a.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 0x6710bc2aa43195df6f239491c58efa3a4fdc6d058f78c76b6a92f0907090c618. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USHM81910963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ecf5fc7f91a8160f02d32c920701b5f1770cebc3a3ab56e4abe14cdccabbbd. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QM7282047813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c93bcdb3460e26b1e6126996870311eeb998f5f89dcfd9c74a29ae322322489. 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/USDY42156842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e8af43dab88c0eec7fc4e3f3cd33304f660ba45c053a2022bb1ac299383442. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USDY42156844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a8c3addf0cf41ab1c88ae15eca15b185709360900135439575898b55215ab2. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USDY42156846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e9cc39ccc6b5cc700268456aae43d92dd26d7f0228bd56cbcf47af9e0a11fc. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USDY42156847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d3be11ef93d3690362d5fb8578c52f520f3c02983aad8eb25b88173f95b700. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USDY42156848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51fef257be70fd27c304628504509c3f00bb36b759afbbf4173b013fd202d54. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/USDY42156849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60153ff342719653f8047edfc99065f70697e30896067ab56843e04be110b8b. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/USHM22106520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5540eb0762def603ac904b92e9090869de583dca8c30fd436691a9713e30b8d0. 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/USHM22106522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a55c5fe3780513fd1f7b885d75b7d87b6da5a3ed4b84164fa1d49658625a8f2. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USHM22106523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff0af93fceed2e2a056f2bccea534fc6cf0c0d21f4f648a9aa3d901f741201a. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USHM22106526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74685e6105f0ef80a686f98d99107dd9115c403bd71129b41b3a83f5ca435ee8. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/USHM22106528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1bc69aa8d217316872f32e49bdb3526b3d4cd140c16607112404df2c7af3e9. 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/USHM92117381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807816d7cc1885ae0b2c11b2c3b5ce61b445c81c3e9decfb02e394f61fafbfb3. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USHM92117383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a65a0493a49dd6b8aed7c1d5557684470e83b3a493591acbf898b3dbea393b. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USHM92117384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268cf75ea2bb14abd878569f876d5494daa0cc24d386dabcaef518c4ddafa6a7. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USHM92117385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e899c15275effba5d61fdb4da959598328e74549f28d8e99b80119fbfc2dd3e. 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/USHM92117386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d8e45d18d4f3d61dce0053570fdbed478c8074fc05819769a2154a2cf2b522. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/USHM22113629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea030b81d8cd253b55c78f20b54f57ab2684a192e2fc73a76878031bbe469cd. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USHM22113631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85163f66afb724ed3214f8edaf39a60aef39d3e3db06b8f87c40827e3f3aca0d. 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/USHM22113632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2edf50de2d4df30a37ca0447931731e7667bb52e43d5d5fc8cb73d589de1c12. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USHM22117673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8e32b30d43bbc1960b34f7bcc80d0da6d39c0e7ab92ce874c743783fa93f5c. 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/USHM22117675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6a8f2567ff1ca371f8b7ba7489e0199f283b477a34a371f5b21be3cbd09dd7. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/USHM92268478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00083656a528cf34dceb9856e79eba6ee19516180473cfccf1035d9004a9502a. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/USHM92268481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70868dbc62d90b63b2569f2eb20f3c1a2c42a198c937417dd7092a576889107. 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/USHM92268483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3527eb6ceeee638586550e5b5cab9f47f5e2ba60fd951aa0be500243d86092a0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USHM92268484.
Complete Ngozi Chukwu (Complete God's Blessing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf703fdf802fdeef3096d1eb4f69383bfebfa9f7fde3b1bd57914c103e55019. 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/USHM92423314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff9c0bfcffce254b5bef97d64f52a12824248e828234f674369af52a835901a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USHM92423317.