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 0x88e2b948ce6cec2f4086985e023c2caeddf85259c21398b786e74092db77e2fc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ea56d24-5d14-4204-ad0d-93851f1c9767.json and https://artists.proofprofile.net/proofs/artist/8ea56d24-5d14-4204-ad0d-93851f1c9767.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 0xd5eea088d90a5d5183ca6151f5ee7e2d2e0dcf615008c7e9c5b5b9efa6861296. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:59:34Z), 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/QZDA72162502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9685275026b1bcfa1341b3d9348b5e827d8d4b643064679316ed73dcacdd840. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN92166001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea89da4728ba21c83b0127f6d702768b9fa76e9f4ed66480b372c33a26451ec6. 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/QZK6K2136753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4071cf9ce9b0f8f0fc3abe0ff9a7d5b21c526290365b3cdafb32d3258e630da1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZMEP2164480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4be9a911d84bde0a6f4e80e04ff4b7869b14fadec3f686d3dec1443bda03a5. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZNWV2184754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff24d0f173fa86b2842cfeeef56c82ef605d951bbd2bf229c9574b60c44eced. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTAS2187317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81ab0be61d0d8f5b977b767724efdbbe10055d079693ecc0bead63be90adfed. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR9W12206942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e574df1f6da94420209c801c43d90876f5bf5b481dbd65895ab524e0e5b9ef5. 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/FR9W12216527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b88bc7e0779d208987cf7af776c1d27b5ca9767488bba40a5c0c6bd84a0873. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR9W12220329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be2aadb5978714ce285052c25a3b4f38d50d3d095b5c772a6e3cf8efae030b8. 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/FR9W12214285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90eab62e36bb1090277b4a4c6562dbfc9f75607452906999fec483804a57da40. 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/FR9W12204277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66163c12f59e360573affa0c27aaf0461965be074d62a0dd34eb9eeff617835. 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/FR9W12218855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a1225a1aedf6a704ced46af7ebef5a091bcb5a0677d71a1542ab2ef9b6d474. 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/FR9W12214286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688b3afb484b9fd6306e0981f4974462a5deeabbaf005c131c671788adc5e312. 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/FR9W12214293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b88bc7e0779d208987cf7af776c1d27b5ca9767488bba40a5c0c6bd84a0873. 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/FR9W12220329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d184ea73d9ef92e8eec2e38bcba21583e45421371ee8a6969755efc6c29b76. 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/FR9W12213335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd915a55bff789fa67edaa597e4178c6260047e133917163c0f5f95a57bb4ee4b. 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/FR9W12214288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e574df1f6da94420209c801c43d90876f5bf5b481dbd65895ab524e0e5b9ef5. 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/FR9W12216527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59680c2c372b9fd8e2046cec8599d41d62d0653199b5880e4959e9785854177. 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/FR9W12214290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cd255a08f3ed6f206d46e17241a20c3a0388d17b575f77f76ad94faa6296ae. 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/FR9W12214291.
Violence urbaine (feat. Kossdar, Rosdagang & Murs OG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911f702ae1efcae3a3de7355d476504eb86cb57cc8afcf665de79d3bc4111c02. 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/FR9W12214287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009195693379a05da1b56ea21be42105ea4e43a17e87fa311285bb92400b85e4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR9W12224548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55559b579c609ae31fd574441df986337a8eb2a73b4b3004389737bb644265b. 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/QZDA72399681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d861835318890896dbf2f8b571de3223590eaa2adbc3b5f9b314bca3ae39b36. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USZXT2351081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83ac2a4fc87f72f4698ef9ccd1452e1c7232e6b9d4a3bce1951a4d26ab3c6df. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZMEM2343764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6324d809fceb786c8eae2b0629466d2fea9e266186978cd36b4a0b279e92e7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTAU2374095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c1ff159310444ca958baf59e80217b0a9ff997c759118247ecc8de6631faa7. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T12:01:46Z), 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/QZWFE2320390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1706c2eabc71afea8b3c2389b9a09e48c37729dae54df44f0cc6e94e82af1a9a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZES72438231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81f9fa320241ef36a626c5ac706eb0b7c4d08f80677bce7ecbafe257e3ec96f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZRP52495998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6df4532461138c3ad416c2deccc1d037b5da035a9c58343e7412073bea3a3a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFF2449884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5daa52e5b044777ea9ebe0a96416af538099f2e56487f723e0deb85c017447e9. 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/FR9W12313088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a114459e35eb88320ce6de2526344281bb8d82698c080e34dd6f4ecb04f7c39. 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/FRIDO2211765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a114459e35eb88320ce6de2526344281bb8d82698c080e34dd6f4ecb04f7c39. 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/FRIDO2211765.