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 0xeddab689b2c59c7ea446883d94703d2bb5d13e010c7a98438788efb3ce52ffb6. 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/2fd8da83-d9c1-4cd0-bde9-5c73d26ab9e6.json and https://artists.proofprofile.net/proofs/artist/2fd8da83-d9c1-4cd0-bde9-5c73d26ab9e6.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 0x180329807f87400025ac1b1186a2392ce5cefdbea8caa6336d46c2af173b93de. 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/US83Z2426881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956fb0aa37aca45aab1157930e44c65ba04927139414a5780b6797b2a7d18115. 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/QZFZ42500607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ebc02e78e4bc2c6cece5e38c6a89883edc36486dd1e2b1beb69b4edee4dd7d. 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/QZZ762451999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5e978f5619403036fcc69a27f7278bb96538609415c97bba0d5954c764798e. 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/US83Z2402846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e1ae9906daf8495de1161369f8b7cf97ae7b8cb376361df094fe49a9e19ac4. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/US83Z2402847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ad098a3d8ac6568710877161e80fe8a5ba2cb50ab414f1339acd837825fba3. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/US83Z2468859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4746f5f32dfa656554eed9f2a4b0798eb72bd93de99192f71eeef41dd981265. 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/QZWFJ2433935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd037f5018476663602ffbe8feacce11eb163466213e40bdaba7de8124fe5470d. 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/US83Z2404378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc83e6722667b0159c54a0c383fdae6b86cb978d7fb3d6bf1a72b12487ecf65d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/US83Z2404373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600f7bdc5fc6d592d5139ddd1e25ecae9b080dd6aecbe7e2a53e3835f90480c4. 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/QZTAZ2494947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56920d8c36319a9022e3e27420c88aff415f6ee83ba1adf48be50306c00880f1. 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/QZNWZ2456581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c10e30124195ee1d6fa679661528c0c43b7cfe2545ff2f80bf5f4251122d19e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US83Z2479826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889f121e90bdf5623dedea62fd7ca6377489a53db436d2367d4277a6da116028. 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/US83Z2479828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514d72efed555679ed5f0373589e05d4d20474fba9efd5aeca2bcc2f5477c3a0. 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/US83Z2479829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723b413376777490dfcce7a92380eed24158fdca95c2d3a23523c7036c4463b0. 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/US83Z2424032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fb46025813f5b7fde3c1544b0569700650f6c17ebc87470a6d601dc96e41a6. 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/US83Z2329642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74f132b8c67bdeb5c94654059e96405a2641b992d9ff57684e003aa342b6de3. 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/US83Z2417812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51505bbc7f9fcdb4c40e90d9f74a9b0ab9aebf18f4651c93a5204d6e58da9619. 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/US83Z2030472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aa55dfd4cd9a04ea1fa67062beafa856211c33277033efc6328ad6ad314fbe. 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/US83Z2206800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d612d3074973f83d56b85fc33ad6388e6d4eeedbfd314a7f448621c35d09a1. 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/DEZ651719865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efcb671f2cbe8c580d45d7d0a1397f261d8b4f63752cecb48c331abb2e34683. 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/US83Z2312717.
Mr. Hekayati - Acid Pauli Dub Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149bfa17da3c35e6677380124243f59e54c50437075139aecaa5324322dbdd09. 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/US83Z2426725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fdff5514535c00cee7022962535483b94d5cf73575267e273b66a9c4e3460f. 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/US83Z1767790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cbb9913e9e58c00256b595f92b1dc23c4e06f25b34f8f0fa8b9182854c5edf. 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/US83Z2429066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9519543ec743c236ccc94d7d4dd54b3226312ed5d6900a24f623a74d1d31994c. 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/US83Z2101571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7c47cbb7e1a2ffa967a3f604b4b0da1ca0757453f5306857e177653c8cc484. 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/US83Z1796117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66123dbd7c82b4e42df9a7e69b6a212dd749a3359921244e9caae2ff3cb01816. 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/US83Z1924341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5eaa2a7a092e62a0cd83dec3855265e441b5f351274dd5fde1c09696f0e7f9a. 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/US83Z2239279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6283529710bfedbbe7e379b52def609334c89b3d1aac743c366d1d13a329fda8. 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/US83Z2211003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c8bc63faa73a9da824217148cd7c4f6679b8f2c965992ca9a4eeaccfa4d9b1. 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/US83Z1791675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd781bf64c7205c6227eaf08816f69e3d2b99b39ea411546215721da7432d86bd. 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/US83Z2025358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa58e1344c85ee5d2192b5ec0470113d247ee925033b9f5907ffc2b590512c5. 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/US83Z2314024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180329807f87400025ac1b1186a2392ce5cefdbea8caa6336d46c2af173b93de. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/US83Z2426881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69427a05612bda0950955eaf295639e5d778fd0008052b6584079c33b6b19b4. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/US83Z2426884.
Jungle Ritual #106 Cafe De Anatolia Selection (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2d9c2022266fe86040968782e774315650c3649eb3c26151fefb7809f42408. 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/US83Z2423615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba19cb37ee8581e37ac1a00f79a29f1e8334302e36b928b102d27d8d99f1b99. 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/US83Z2490118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a88aea1073f420b55178bad3ea43be44296c559d6954e89e692718dc134b01. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US83Z2231105.
Jungle Ritual #103 Cafe De Anatolia Selection (DJ Mix)
Helem - Rialians on Earth & Cafe De Anatolia Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c44a93cea244266a9e514ac6bf9fb5326e159cc6d7345f6063cd62e96ce942. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/US83Z2203176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4d2d135bf941ccf03c4a558b00ce5fee954510971a8d66ebe7cccf66a930a2. 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/US83Z2409593.