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 0x476e5ff72c9bf500b82d560f3e5b25d1456f2844b575720640aa5a522c72b5b4. 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/06bdf584-13f6-4994-bd0f-f73ade74b379.json and https://artists.proofprofile.net/proofs/artist/06bdf584-13f6-4994-bd0f-f73ade74b379.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 0x6a4393fafedcbcfac19bf2acd5dbae958e6f979ded55779e5c3c1f185363fa73. 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/FRX282263267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb632d226f2cba1b329e31171614e6f8a7416fa27d253b960e27d8ea289073897. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FRX872250197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157e94450cecdabbdfff91f45a69bc4caf2c5fc106cea6127d6ed053d735fafa. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZWDW2369179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534bd20cd24ce839e8325b24bce9057d2c105754cbb6a31b0a6ab81af52c25d0. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZYFZ2325211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1813e19f163939145ef2ad96e9833e127949b4b19b0426b1a64a9e0c6705052a. 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/QZYFZ2385216.
سهر الليل مايكملو غير الرجالة - دورلي القارو خويا عينيا عوارو
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6833d7a69a16a44b9485a20675e369b3361b8593e6b3f8b8eb7a2cec08585f97. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZZ662332397.
Mel Galb Raki Révoqué / Deri 4 جامي نغير عليك
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64d9f12113930afe511adb9377d0b0699b3ac24ab9e2dddba772ee879f47538. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZZ662339780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67424017cb55f2763ac82089e904c3fa90104427a5429a4fee146ab4ac845485. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DGA0Q2376286.
لاقالتلكم وين راح/رب العالي/قلبي بغى البيضاء
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035706b5188d8f794eadf2b67ee3607331d4e16d0b370e6094d6c5553ea55906. 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/DZA102500181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8135617c8beac72dbc4029e77c9effab23c0898ce3785acb6deaed02a5f1a499. 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/FR2X42595081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97f2e9e1a75a484e86f2f0f50546087eba125c00ba8d5125a758caf68305904. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DZA102500915.
Air Algerie Tadini - Lchelf Nglebha 3ljalk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2f95f8b6ee3788006884b1756afd99ef54d30a46cf6fd6ad8b68e95ebd2197. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/DGA052561470.