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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1234c1e310dd5b9f7f18b34794ac59f51b7a0fb951a94f0ab8a15bb17bd50e9. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffc0bea6-fb98-4f35-bd94-cb1a3d53ae16.json and https://artists.proofprofile.net/proofs/artist/ffc0bea6-fb98-4f35-bd94-cb1a3d53ae16.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39185a8d1dd8fcf0f80d1355bff06eed6997326819f55a7987238746b4319f17. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEBE72300932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ce7afe9b63b52deb7ece02f0b6110172c3a13eca12aaf22a02b93046cc2814. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:22:14Z), 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/DEBE72300933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342d79e92c564fa5a10c42bfeb618624bb0b1d3a3492db905e88af1eecb3fb23. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEBE72300934.
Heater - Thandi Draai, DJ Clock, Mphoza Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4212f3a67631eed5031ea3610f510eed463bd2e8f450ba2c4974941ee6a6c8f4. 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/DEBE72300927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3af9cea51cfef4721f05c2a2ee2727a6c396f5a051332061ff18333cce40db. 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/DEBE72300936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262d8bf2cb4752f2b30809700a623d5aaa05e57014cb470c1e3e8e4faa9fe1ec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEBE72300904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7eb83f2fe0054cf76d14d82f3f96af051c59b0f75556778a86b498a2cb06c4. 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/DEBE72300939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e333b51644bd888d16c00d347715ce3e5da18009655993cae392e40b77f9ed. 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/DEY472279104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afdbec26ca2e9ca4031d947459e2dd18995ce358a815a833cfab63d8d836348. 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/DEBE72300940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dae07824eb72525534ef0c95cacc15c86131ce1b058f1a002f77601755778f0. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEBE72300941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc37ec9a4a8db3c3d2a7876b011d0c17d8f84d0443c544d91f1f37716170f4f8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBE72300942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b68903f551dd4d6c472006f12e1145a3761d1f382d7d1e9037cfb49e7aa59f. 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/DEBE72300943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189e51454a3a54a6545049677d3df362a92988cf567bc33f56611da2bde00cea. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/DEBE72300938.
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
Ceremony - Thandi Draai & Kususa Remix - Mixed - December 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0701735c6f30db70a006f87f7f6dc4494b876bac76f4d67c239470a65b222e17. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:09:01Z), 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/DEBE72400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251cbb38df0f08b7dedef65ff286d4391140036127041b5b896c735421df8c69. 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/DEBE72400176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e73fd9eb29585b47ff5cce695cdf987877b9011bea7b96bc983177b780d5b4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZAC9N2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb189a3745df090b460f3642e14ff0cb69b0d48b340e9ab4474b272b22252cbf1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ZAC9N2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ec2b644fb4d278ab130527d0fd1e80709084a7ffd2478f1074fd7515b26d6b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZAC9N2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72734403a7f263060fd5ad908b5771ba5bf21eba47916e2717455aeddecbde9e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ZAC9N2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb191db0270f73d498ca681769726d271133ef49352a99bcd29ab8d93eb00d19. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZAC9N2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4162d5e77898bb977872e4430232adf375ffb0ecc988221e98ee623335379c5e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ZAC9N2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dad21d55b8230148ae63bce73c002d3bd86246e822b2d2804ab1aa12c309509. 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/ZAC9N2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1345c640a60c82c1744d7e062abf4467ad1594c6bed038c26c8a801f49d42d31. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/ZAC9N2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86a84ad4c8975280f2d4a243207064bfb17696e764f838eb93456160f961463. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZAC9N2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366d862493823ba76b86420f57a2659ad185c8546ffa7c980fcf40742441df71. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ZAC9N2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a78b444d1df160f69a355bdc87f73ba6aa0537a5bc30b6119ceae21239e68a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ9451903491.
Shaka iLembe Soundtrack Album, Vol. 3 (Music Inspired by the Original TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbf2d17d3e00e7def3453839bf59e2e9bca7f240898df4cd05e8d7cc969b33c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZBO732300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309f9f6fbdd5f4d597ea5079f860bc65c2fd0d4d996120e883df416d7d40e6d9. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:55:11Z), 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/ZBO732300418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563282f64f71da2c876ae09fdc1a8d3cf81bc257b3eabc5d4cd66e4f69c66a97. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZBO732300424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb521149308c0350959fb9932a66d3645d2e8ec4c53f5217994f2e6606703554d. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ZBO732300420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb44ff9c1aa90704e12791ec81a75af23f736381c75536427c82608bae11006. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZBO732300419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01167c8fbd67428b66cb6feedb367147ceaf4e22439ee41d9de8e6a4e2fa289. 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/ZBO732300412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab760d969321deb4ea773d717adbac1a03acf10acd5e39b2f2dbba50db1ca137. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:39:32Z), 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/ZBO732300426.
Shaka iLembe (Interlude) (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f208446870a0bd5f2e4dc872fb0f4b1c9e5ecbfc3c68001de2d368fd2ce1c1f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZBO732300423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52f6deb06f2686fe6ec61c428c3b1477408c6eb4a96044e737ccfb89ad8b820. 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/ZBO732300415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb766107392ea271fe1077bb00ea22c8b04e1f0ef033ca8b6c54cce9d0f7cb41f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZBLZK2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b40de3ba83ca1db054f8706ad4c8570c5dd31ef46dda6523ed73e820c925f5. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:03:53Z), 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/ZBLZK2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f1fec0927b3b64291996eaeb16ea52b80f78443d0cdaefddd7fa377b5bfab6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZBLZK2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7824b109dfc9e1f63ac6113e11da2b59c9b468bd577aa3c095b84a94685bb08a. 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/ZBLZK2300018.