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 0x50cb911e135c4fe29aa2b544963df9a2177d1fad4c580ee4468cbfd8fd7ccf39. 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/93118ef8-d066-4b86-b253-632c47089f01.json and https://artists.proofprofile.net/proofs/artist/93118ef8-d066-4b86-b253-632c47089f01.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 0xecfee2c82ddd71f89ea16d800dc7cb06cd28f1ba7b220bd0e595002af84a5852. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZA56E2315177.
Ncono Majita (Sghubu Sa Yummy) [feat. Uncle Vinny & FakeLove]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e80eeac616f4e6d386d3806a5b7d72dde3d1e3ea30f0c38e7946cc8e163fa5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2304021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16eac8ade17d351eb55e25d298e95c567431d6b21ea34768d0c08bcaf4d1f277. 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/ZBISC2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc740333ba94c6b8710d661b9759fdfe4cc7939c7e275190643a0a49e1a025f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2302083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be85db24d835af9c7293df41ff8d3e526bf38b0a9909f514d5ef2361cec4a5b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX6852200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b96b8fac706402bfa03eab98d72d3f18586623a1e7b8304515d3b62e97d36a5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX6852200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2fe28970197d35932b96e7af7d1219d48872070f12eeadf80fff398048695a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX6852200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde318dddba1a085dadf7901093c0f5a91e7e832564faf2e5537f6d9bfdaa119a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX6852200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742b2aea86ba8fe6a83a7cf31d93f53a507f3f3161412cc8e3373442eafe0e13. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX6852200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ff800aaa815439fdcdf50912fac45070c936de51c030bcb1deef0ddaf19390. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX6852200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b33e359a1a58463bc9220a980da38dc33144b372c347b40d3644982b031cd1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX6852200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494db3eacb42d5d9da03798965bd6d3927c3300ed25aa5fd83b01988d69994bb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX6852200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633ac85807c2b75279db3681b9c3786c4351b8b21bc49d8e2f665f995ab1da3c. 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/GX6852200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cad6bb95dd968a7ae36446ea01d06bedf5e541ebadcd97f0cef2787080913ad. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GX6852200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455afd064858d3de5e9f9b1e877b1a45bc4141ee61cdc4dc734be3c506b93ceb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX6852200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae638a6e08966f3ed9c3a36a941ccdf7fa6438c3bd2ee3a3ae4b9e58068413d9. 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/GX6852200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a7d0fd09033d8827978d612412c479b149149367ac158b84f65ef83d3347de. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX6852200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536a1c48010a68c0bc33d8ec64a60915fbbed04c48291896254e1b8e2c321d39. 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/ZA56E2420221.
Kunzima (feat. Tman Xpress, Yumbs & DJ Maphorisa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25114c23b71a99e2be522dff0b68e0f4fb6b37924949332ccbd2555ec920b72f. 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/ZA56E2420223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d386a9092207682dd32c8186c523cb52c0edd2046e33a0fe6ccfd2dbfd87a6f. 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/ZA56E2420224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfee2c82ddd71f89ea16d800dc7cb06cd28f1ba7b220bd0e595002af84a5852. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZA56E2315177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc64b8b76ac28e5a6e786e4dc33ef2e736a80e428e85f9657c223fc429a774b. 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/ZA56E2201643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299cabed35944606c7fcfa3a3e54d5469b41dff6fb02b603634d3de33a7784c5. 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/ZA56E2201644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be9361ea66a8b38b0dcc5b4bdb421aa473bc3267e2d7e5f22e752f08ad2bcde. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ZA56E2201647.
NOMAYINI (feat. Gustavington & Asbonge thee Vocalist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb4630d352a4c997bb91527c5fcb59c3932733c045b135ab1b0aaf964d0f90e. 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/ZA56E2201646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255a476003c1c28ba83af541de83b441cb4de21ec601a068d84426e54020eebf. 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/ZAQ652000886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b33e359a1a58463bc9220a980da38dc33144b372c347b40d3644982b031cd1. 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/GX6852200017.