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 0xe81e831c6f8ae0ba24cbddd7433b034efcaa4bd04f83a6c670d9f287b897af01. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17e2fac5-88ab-4d2c-9e8e-927f168555aa.json and https://artists.proofprofile.net/proofs/artist/17e2fac5-88ab-4d2c-9e8e-927f168555aa.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 0x79b0e01cc928e63934453fddb5109bfd18f5145e1638eda44d0edcce5fa13baf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/INS189825694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ed71278600c596ceabc084bd87b4c92bbc278f01fc66200a1f654e12ba0480. 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/INS180464742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349e9ac67f438a99d641d6c72eef14b971ec3fa69a64936e79d456d076d7bbc6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:51:38Z), 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/INT282207146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963afb9138d19aa49a10c04f53c33bbfa5437af23820e020ac52b6ebe1cde9b9. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:58:48Z), 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/AUBEC2335014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2454736d075ce57d94da2cbfd7d798ad8a89d3877e10d16635fa88f7eb846a22. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/AUBEC2337239.
Ramkali sadh Alahniya Kuchaji Suchaji Gunwanti Basant Ki Vaar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54128abd7462f3118df9fb687450e0199ab20fd497103c4461528453a17e0ea. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/AUBEC2352604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb4ed1924637e87e5e472fd8f43650219071223fc7bf3e379dd6fbfef526904. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:24:37Z), 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/GXH2J2577733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f09fa3986eed545902dfb6d234acc830dbe7cfbfee618b9ce8aa1342a754a8. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:47:01Z), 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/GXHAF2541269.