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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9a919aa3f10f155ef96d73757657419f3984d496d953c520dd59c8bf9a4e54. 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/ec90feb0-f1cd-4d18-8ce5-4dce1576552e.json and https://artists.proofprofile.net/proofs/artist/ec90feb0-f1cd-4d18-8ce5-4dce1576552e.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e3bc7401e075f8076d3291dd7add4db28863ca4af9bdf8b20aca5e87029630. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/INS6Q2001433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ed24c9b06b8b7ec5769bd5de156ad9cc586c39bdc3145a1b3f6f8a16c179fc. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/DGA0Q2366205.
Gori Hathenli Thandi Ratha Sajan Likh Rahi Hatha Pe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400a1c5971d5e11882704cbf6f11e92a2a53d08a4d91f1278bd340bf162ab95e. 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/FR59R2441167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1478d1f5c2b791bc6eb846d718bc9db2a2b10b5600d81c3109dbbaa29192b6e. 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/FR59R2441184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3740d3845c6e607d698147a5983029a89cd63f88e40bdc35eaeedada04f920d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/INS6Q2004470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461ee036b0876c0fb9c440be585280b5f425c98b9421890f29ea957bd2e7a1a1. 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/FRX202490082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c6e3bacf14e7c112f36252cadfc9763d90c872716c20477329edad47c8d32a. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/ING682400267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b1ecfa4f565ca1cd6f1311aca69fa24b763960b78306aee063e581495d382b. 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/ING682400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0449f8b72e9aa8b6e6eb9d11f6798f9a4a9da9504de70cdcad553fbef6e1dc9. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/FRX452420575.
Choti Sali (From "Rajwada - The Feel Of Rajasthan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c92e38fe9d57381613f7bfa4789ce3c24235b976cd265b56fc6729bfc869d9b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FRX762436169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7373a30fef61980cddc988f4711bbfb5981510c5a4405878a2e9ab4482e0a2. 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/INS6Q2005511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5811f908120695e2b5a1c49db1dc74e0e81daf55ed4af6810c7d86052b4236. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DGA072490490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a6d6bbec0aa9297da9993b942b38b08a88a992e50061d1263657ebe7284e10. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/INS182401656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25af72318b93a8c30a27c26a525d7d113fed63b6550a4137d82f60d1d26e0bfd. 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/INE182455643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd43f2dcc1c85cd098bb73f6153d1acb3ff972b4856b4742d8fa684aff896bc9. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DGA0M2475673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc8fc8f77172365e76dda28b71c4c0c4ab9fa9108757c1d4bc040775f45df83. 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/DGA0Q2424871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb557cf423a932818ce6af923c94449987b3fb5ab8a4069987253f3e01927232. 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/DGA0Q2493601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9540b1c3483ac72232e9f16cb9d457cf87f3c9d0b4e8f3822ba1def0500b2e70. 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/DGA0R2449670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa722c5942c3099e084229b3b3e4b0694e5e1bb2ca876d5e8e56a0f330e8cfeb7. 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/FR10S2522160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a8e61372f20b680e79d067955a94f810f41f6587c7658af21337524866db33. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FRX202579426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe190762a12f1e519cb9f802f53e5e83ebce3e4e72f590619a4e6e8e4b312aa5e. 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/FRX452509072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e827607de253dc38072860bfa39d866e14ef1723c3832265d00d4f44e2e3d66. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/FRX452597236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d568b7bdde8aa20aaaad7cfd0a505ecb55053c64c9de7dcc202953b8a4eaa2. 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/FRX452596512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9914391024ae8ad5a72196cce1576c3ec16ba3714bdd9e7687629f51666de6c4. 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/ING682500395.
Rakshabandhan Aayo Pyaro Rakhi Ro Tyohar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef5953db89de60bae32d3c091402c935c4c5d281a2b26c63a056835b8d6dc5f. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DGA052501469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd785efb89eb2bdafa6ee11b816d060f7b46db3ab8fd51a5a9939368474a21187. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DGA052559806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ef6106580e46e69e3c52149324ca6f636d13fca59912a06a9f1eff908d5f01. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DGA062501566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347d7e6203b214782d5420fe059c45c9d80763e50501efbffdfa0b4e9f943444. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/INN242542812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dffdbeb00294af976ff9ddbafbd3c65d08f0a8e5d3261d5672c63b530580a3. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/INN242543434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b6728781f730e912242b58ad07402446e0a4dff21d2520b634096039c4227f. 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/DGA082429571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec32ee6860859c6bb8e650c0e935482a0b67b9b3414a7ba4c85d5e0ebe546d0b. 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/INN242200796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677ab60f3bef1b81590d7e4b75528a26d9ca8ce5602fff9040792cc91cc485ad. 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/INS6Q2009648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049120ff698a3534d001e923f8a5988a5b1bf7fbedb841648a7bdb9d0cc74865. 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/FR10S2505019.