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 0xca922bc3854131904b97dda8923eea43cd5ec64a6b820f6f2b7af4011e7c2c32. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4dcf0ce5-9332-4331-888c-4444d9a34eeb.json and https://artists.proofprofile.net/proofs/artist/4dcf0ce5-9332-4331-888c-4444d9a34eeb.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 0xc7e1e94ca28b143277208adfb8e94b2da19574bdc9a3540a48f1039b62deef26. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZB4J1890968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c99040639c305ec590ebb02d4c0f4478d154a03d2ea43a671dd3d86817f2fa. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZB4J1890970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69b9df9ade66a1e79739b3a7bc53e875e78235b3038f6dd9635658251866c63. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZB4J1890974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ccadf5cdebd30f382fa67c2af050605b9d4708fd9e1553e4be7cafc55ee90e. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QZB4J1890975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765a036934cc9950e59b81638c985d941bd83bc6cb97e59d2bb4526754e67fbf. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZDA41803656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb64e5be74a3907156eaf311609f9b62e3af4a5318aa274c42af92896882974. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZDA41834305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021be75f82b520a4312d6bcf1d321347a5ab6e24d97892ca25c7dfbb24bcf8c1. 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/QZDA41833338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6333b8456ed6d6aaeaa408b46445ec997ffd0e3446fe48e071f5a557160a2fa9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDA41834812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245639dd90fa4c33b41938a5319ed62064f1198863338556feb6a92a180da82a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA41836809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5461c189d6d28bee7677f6aa5670102244b8f8da4162afbb23f47dbf1a49c09. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZDA41861373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bbacbd4e0edba0bb3bfc732966819f5516d3cf93f922af68634d91320529ca. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZDA41884266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42dc8330550143da1d2557d152be6fd39e173651aeda83f54eeb81537a9ebf8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:51:23Z), 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/QZDA41883329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d354a5556e55bb493678db8a996f9d993253b47060377637e6be8ef28268800. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDA41881695.
Allahul Kafi, Hasbunallah, Sholawat badar
Allahul Kafi, Hasbunallah, Sholawat Badar