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 0x22ed0fc9a2e4cdb62cbdb51b1d895ee6d1da6ce49f0e498454e307145dd09fd5. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45963eec-82fc-4e76-9a8f-aece37fc5a02.json and https://artists.proofprofile.net/proofs/artist/45963eec-82fc-4e76-9a8f-aece37fc5a02.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 0x86f9306280bbd78b27c936bf1305d7eca38174c9ce85bac24bb1a3b125d64e59. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QM6MZ2425007.
Van Damme (feat. BoontleRSA, Tye Waves, K.O.B SA, Novatron & Skizo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50eaa0a9a5839f824a83642011c72e1dfcd6b7d753a0dda3b6f590f85d3bb955. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/ZAA012200510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd623dda52545b58df9dda64df2205c3c9cf5c0476d17b9080926dccf458545. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/SE66N2287535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438133e4cdbce684d6779ffabf6fa6f57f372c1e778d215567e6ae61545bf652. 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/GBLFP2323413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0d4954ceda6ba9d0489b56a8733cbab6810b63f34dff506be4ac43c17f2fb6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZA56E2200565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26defaea4ab173702c8a1dce866573ef66049f3a85ea171e95b83c34e786b30b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ZA56E2200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469acbbef2715d36f787a1d1cd6757e42144998a5b064152885ee94672f58263. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/ZAYDB2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982d6f1b8fec8a1039b091e1efa7119f48982d878d7987a45f98f967d45e05f6. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/ZA56E2200927.
Thula Mama (feat. King Monada and Kay Murdur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9178b7d31f8884db774cf292a323fb44fad0fba769c55fe4b66c118183a8681. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/ZA56E2200930.
Khanyisa Baba (feat. DJ Mohamed x D2mza, Bean RSA & 3two1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfa0bf1280f301f46bd907551ccc954389390aa7841ee99c09a1f71d1314414. 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/ZAA012200489.
Ngixele (feat. TJ Mengus, Richard Kay & Bean RSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4de6b7dd22611d1b0d8bd591775129a0a2df1eda134261a425d956a3866405d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ZAA012200490.
Tough Times (feat. Bean RSA, Tye Waves & Saxo Da Deejay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8447b291d23380658921dcff6f3de3f3399261d32dff794203c13c9b792d13f7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ZAA012200491.
Pula Ya Lerato (feat. Valentine & Bean RSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94518d0686d71bba613f96a3a93e2375acb1214726bc95e9df3dee8609b6e8ce. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ZAA012200492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc557e25da5675e55d60ce9fbae204a0719f540d1eb67bd2a483cdc754e86ac. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ZAA012200494.
Lovey Wam (feat. Bean RSA, BoontleRSA, Prime De 1st & SJE Konka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194bc9cfc7f26f8c54caf93bedfdf7e813385a6b9cda7b5ab4b7a9552662d7ae. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ZAA012200500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce212148a38a07f756cec413401f39c62e9d3653958427a95d8bdbee0fe416a9. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ZAA012200502.
Pass & Special (feat. Bean RSA, Villa & SJE Konka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ab875d0cb34a27a95438b213bd58ec7e1a157f79563d45adbe7eb9d8157e7d. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ZAA012200503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314086896fe5ee4617cae403d22436b7d840c517c581f40f85c21c0de054d80d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ZAA012200506.
Fine Like The Weather (feat. Bean RSA, ShaunMusiq & Ftears & Afro Twin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d168da3e722b5f500b9e0ecebc12b564ab8cefb35a0f67161318e5153e866c. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ZAA012200508.
Ngnari Konon (feat. Bean RSA & ShaunMusiq & Ftears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd10e07f66fbf54b2e73fad6527f510b1e046d60c28bddc3f528d3fd719d9558. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ZAA012200509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50eaa0a9a5839f824a83642011c72e1dfcd6b7d753a0dda3b6f590f85d3bb955. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZAA012200510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28c450cab71dfb19fb84ad59c0a42cb38e6008f95c6a42bde47f131520d4423. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/ZAC012301436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0102c745c17d64d34b101f888f7c5f8e3fa9d52b644be147666760b7e363f6. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/ZAC012301437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504aed885318e2020e8ac1e6780328e0939ec01b64b00d66f4b9cc3c0bb7af1e. 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/ZAC012301438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a8ac1a1cd55f242e943bf1abf7c2a01122bf1639f93c3f5014bdea10e9b5d5. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ZAC012301439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde08fa46f014c8a82617773e0896cf7b5ff5877340105d767bb4e2048f218293. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ZAC012301440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e9ea62ff679f373dc2684fdbed2fc3dafb1cfdb2478d818c4424a93917f10a. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ZAC012301442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2987fc76a3cf157b2ad26f59e85eb35164886402cc0629c05af5454fe13acc15. 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/ZAC012301492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f4257e67bead01241d25d00375e798deb114d7fb6362d17d83365efc3fcf35. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/SE5BU2429532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785565b7aef32df46ca06fdac860312be2f1ce99f1a82aa32c999f1a856f7f30. 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/SE5BU2429534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93dce1b21913f85fe3c805b957b4f08578fee940a72f8064ac7a15ac30d1a91. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/SE5BU2429536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98278e0b0e976e82bba49f4a5ca336347763f4cefbb725c7a3299923dd6a5851. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/SE5BU2429540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ef5ce08f1f1e709d2b9dcffdd95c8bfc877e7ff722fd2a1bf6c500dc7ae931. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SE5BU2429541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76027fbbc3d3b7f686956b90103ba406ec044c1462bb0d2dbaf9a72f106ea2f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCAFX2158283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7a63aa1bc741022063ecbb7e0bb6f9a0fe8685cab39c8b0f3967fae490de7b. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZHN82236025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3180752e95b9fe41c77952be68721fe867fc800744bacc1a6ac9a7c787585f3a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBKQU2398510.
PianoKnight (A Little Bit of Everything)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b04b9ff928e96645cff560e9621e683869d6fa6f6781e0418064b96987e34f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZFYX2394242.