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 0x10df901f4194bf46083687e02615ef025f5bc1caa3b3639f33254b53e88de896. 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/82b9c96d-bd43-404a-894c-fb0242cd9745.json and https://artists.proofprofile.net/proofs/artist/82b9c96d-bd43-404a-894c-fb0242cd9745.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 0x5856c1348e49c34b019792351fcfb69f7677724e3e3c555140c1a01367e32ea0. 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/FR4EO1900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f64b3c5bf2a67d7e98e604be98d0260505fad81464a4690678c9fba7b62802a. 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/FR4EO1900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73f4e1c58e421dfb835f4f183c044cd1eb2fd6285a3a972d426766e5230b5b3. 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/FR4EO1900127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf098d7d29fe06152394b1f42ad397c9e792acb7e06cce5a4be79db4b3b8ec6. 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/FR4EO1900128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28186c6d6ee6c6eb14bc35380609da371284b946e174eacd44e6bc808b8c86bb. 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/FR4EO1900129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fa353caabb24499feec16daa588d8687f3f29b5d254e530ea1281119e6a2a3. 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/FR4EO1900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808755f3806a33f44641fc009bf1017f2debed07d246f539eb0c1b2ab57de5de. 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/FR4EO1900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f46d2b1d38ce742c7720d672179ca8c4e9c9d7039f7e43e4e600b6a6aefb832. 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/FR4EO1900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf174126655835c9f8105a6970ac013341e80b66b537c034c5e523d47c4e23f41. 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/FR4EO1900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4bac4bb03c015013599de8f8758717ea047c2898df4819f804932b69ed520b. 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/FR4EO1900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1a809bf40226af4c3b31519f64fb574ba00034828fd8d4ff18e82bc708b128. 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/FR4EO1900135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886a2c309e5199d7e0c6fd3f6cee4b72a4e0a46e3d9eec62d0d00dc953fd284d. 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/FR4EO2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683dc3bdd033aa863b18bf847fb704e3fbbd4a513c61bf40a8128aca7e0c9a70. 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/FR4EO2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548af1053194bdb51b958de5067c3e2c2caaab8b6c619dcc2775720590648346. 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/FR4EO2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61e2baffff7fa82bee729e0c4a920f5d4d4c683f59f24a9c5e1e5ede9e4d050. 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/FR4EO2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c41b075e7c731e61549bfd4d89aa27d2caefc3d5d8a80d62fb5b8562e9f528. 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/FR4EO2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d8322e26e34ff2c4088a3cee34f2cf9efa947e731d587aa9fbcdb8f72bd171. 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/FR4EO2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c4d5324aefa7bc931a0ed87b779d8f8ceec60f1f3509010e23d4053bafb7bc. 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/FR4EO2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e063b5917fe7bfced02bd0ef86600070ea7a8b537a79fdb621e5f77cf3e57a3. 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/FR4EO2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3f3caf910415c6ddb1a00628f1cd3b8d907e3ad21dfc43292679873c4529c8. 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/FR4EO2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f78b444350f5a5b5976ab12c4aba5671a37de23786aec27de540210d697214. 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/FR4EO2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64b7d682c6b191decd984475abfca61fd6f7c19c496ee3bd3aef4b35a2f9665. 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/FR4EO2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d8322e26e34ff2c4088a3cee34f2cf9efa947e731d587aa9fbcdb8f72bd171. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FR4EO2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65c157c03c46475d2f867f45330bfbb24a5305ac1668a60b6b10be8c788af7d. 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/FR4EO2100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e0c0f9e0136062dc7c31894068e6cec24abe77b443c8d27fc4070ae33d1a83. 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/FR4EO2100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddc08dd193067d531e2d64da664591060a7ffcdaa9c6780410dcc05c4b24ad1. 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/CH6541889166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2275ea892ab469d024d62eb99bc82f3e6253c0271937284627598c9e644323ff. 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/CH6541889167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399d9d13e745b3e2bed1f988af5f77b03bb95cce063171afab1515559090cc9d. 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/CH6541889168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89eedc5d758f399656e232d9661307217b397cada8ad3f2473e4d8d485001d6. 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/FR6V82198772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d8ffdb09171f06b4d85ad3d4c95029aa180f39a0b994ba423c1ab11bffb504. 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/FR6V82198775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad3d8334dbe95b917789b614eeefd56b16a6b109c03eaddd7a1812f21ae91f5. 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/FR05P2300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7076b530447970a4b91ce03c178ef1f1060f4d6ca60afa51cc1e6581bc027e88. 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/FR05P2300432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b913bc870a07e3837a302d598b57398bd1218cdaa0edaa0c730ae646e43a148. 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/FR05P2300433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce8f0efef9b6610909f49ce4ba31f049d79601bd22a8b3b28016d3941af54fb. 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/FR05P2300435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1db9406778e4bd9e7397ec7cd94cad3dc1db1760d9a0a6b6bff6e6b2cf8e24c. 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/QZAKB2370388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb43207d8eb51958c0f84469ac98b2e53afd65d72f1f6219a15ebcc7110e37d. 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/QZAKB2370389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbbcf0c600f95a0d072b85d9ea273897a1beea552fce6ac088f67ecbe5b6a2f. 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/QZAKB2370390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb501eec7264871fdad6e744280b2f6f084b566a3f53fab8cebdee43a24c7cd8. 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/CAHQJ2270718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982d649897acb6163b1914fb98a27c1fda21cb963767f4fac92ee8e99694b6ed. 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/CAHQJ2270625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488d15016e83884519421223ff1082bfc845a1e37f5bd3a238e3985cbc395ae2. 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/CAHQJ2270735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58a7e908cf0c6cd3fb38f46e3f04aabfa364f177cd66d5c5bf6bb729719f31a. 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/FR4EO2400094.
Elektronik R​é​volisyon EP Vol 1: Gwokhouse