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 0x7b93ace34ef426b8837f3738df9ba3b5121ce3751908787f078f18dae0977003. 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/86587100-b77a-45d6-94dd-3f49028bf0a4.json and https://artists.proofprofile.net/proofs/artist/86587100-b77a-45d6-94dd-3f49028bf0a4.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 0xb87ac0cc28ab4496b8ea222b971b76e771b6f6c524f09b7e262a1c934095e3ce. 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/FR0NT1801270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f40b3e2fc9a9b9db40338ffbdac854778fefc6c60e3d343fd18967a0796d043. 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/FR0NT1801272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958c512dc94550f31a61c8a5aa208fdb7b11b3c48f2998da311cd36c5f0c58b5. 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/FR1A91900907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b899e6b81ac7d9732121243c6e735bbeffbc5df90ffa20ee83b9547e0fb87a4. 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/FR9W12005780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c1b61979dd592a01f1f193603f2222529a8df93e6f834c858935824c22d74d. 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/FR9W11932349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2062baf97304cc4754e50a1c4d70185a455046311a5a5e9d951abaffa1ed0fc7. 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/FR9W12113986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2062baf97304cc4754e50a1c4d70185a455046311a5a5e9d951abaffa1ed0fc7. 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/FR9W12113986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9305daec0684b103e6c70f0614f09825f0871ab1a4bff13f60cce64ae888f0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR9W12113989.
Les professeurs - feat. Seth Gueko, Freeze Corleone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183abb33b2cfcf152592d776aaf1ac7e7da0bf3e78c59273571c59a5a11de8e5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:21:30Z), 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/FR9W12040554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73a0c3193683c634b2d401f18684c5deb19899a87b8a89e464401a1254c495a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR9W11912665.
Sonata N°1 (Allegro, Piano Sonata No. 1) [Beethoven Remixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd878085ba74982dce329b2c6154a8834b03d0ec416bc6023d65e6614146e65. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FR9W12306585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0f8e2a9cb80a9e6fa0f9a4fbc4b0b4e9e4e2fd6a05bd2b98a45266706bbf54. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR9W12249374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0f8e2a9cb80a9e6fa0f9a4fbc4b0b4e9e4e2fd6a05bd2b98a45266706bbf54. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/FR9W12249374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b615cf4cc636c882aab57e74ebdefac3dfa68c161f8939783f82d71f707ad6. 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/FR9W12306584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98770277c9772080ee42ff16d8faa424a855ff04d43ee7ca7a45eb52bd4adb98. 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/FR9W12309882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee99d8ec3634bdbebbe520f50383572c4056f8b2ddacf7384499b619d2f82b8b. 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/FR9W12328193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e47580a04a0a8b46d72ca86cc8b9700ab18fe8029f9e53cf16302f67cdd4106. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/FR9W12447707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e47580a04a0a8b46d72ca86cc8b9700ab18fe8029f9e53cf16302f67cdd4106. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/FR9W12447707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59351369f536e56cce6991d649a9fde515ae214bdf2a33511730f128b31969a5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR9W12424424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2469c455782ad80ca033508e44119b40451ab1cf22479bbc2fbb6802ddda0119. 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/FR9W12464217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb964f3e05eb45b4b37c22289ec8f21dff2b1f06f21b05bcf1687d441d00b0e6f. 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/FR9W12464215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2469c455782ad80ca033508e44119b40451ab1cf22479bbc2fbb6802ddda0119. 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/FR9W12464217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda6d8a4fc6c210085a7b6023d5b5876a690feb1c1cf2ea3fc92311274f8bf5a. 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/FR9W12464216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98770277c9772080ee42ff16d8faa424a855ff04d43ee7ca7a45eb52bd4adb98. 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/FR9W12309882.
Clap Your Hands - Vladimir Cauchemar Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e095e9fe935cc9181fd76b3828c2be4e79371ae581ffadf4a8be6f364cb836. 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/FR9W12206649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976bbc8a4758c65df6f4825859d4ad23f6755f317e856a11da70f12450037d77. 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/FR9W11924748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e095e9fe935cc9181fd76b3828c2be4e79371ae581ffadf4a8be6f364cb836. 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/FR9W12206649.
Clap Your Hands (Vladimir Cauchemar Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e095e9fe935cc9181fd76b3828c2be4e79371ae581ffadf4a8be6f364cb836. 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/FR9W12206649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b040f09ad5692a740dae522c19651f4fbf5cb7ae36ded1b43a835b6d2279181. 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/CA5KR2231238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba00586ef28fab157a43713bd3e1d45cadce8b56462cca2d4176c84fae34657e. 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/FR9W11916213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba00586ef28fab157a43713bd3e1d45cadce8b56462cca2d4176c84fae34657e. 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/FR9W11916213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33df41759a9353283b959132ae2a2f3f486cd9798fc7678277d391967072d171. 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/PLF242007483.
All the Love - Vladimir Cauchemar & Lazy Flow Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c10afe10d20d877690a15fd2239e762390bdeb2d0028b9f060cefdb5d65dac. 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/FR9W12018220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b93b986d33f482cc2c2c2cab64e1f6b30752dcc015cf7526635a90a9af9832. 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/PLUM72200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446ff23cd7ea5f5a0ba670c9bc7056836664b792661ede10bcf6754bd3a984f3. 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/CA5KR2506611.