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 0x968732a18ae17caa24f520e39bf38519dbc117c8ea15d69b6ac3a865c89ec53d. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cc00a4f-abec-44ea-b273-8279aad8ede8.json and https://artists.proofprofile.net/proofs/artist/7cc00a4f-abec-44ea-b273-8279aad8ede8.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 0x88eaed9203803a8cf68dfbb1814cda428d2a4460c2b657d790a167c4d9a5fdd9. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:17Z), 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/FR10S1936195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7c576c210c02ae876bcfe08805b36f4c74ace57f4bb61ea2f52e83fcaa4305. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRX282239929.
Zerya Muşe / Yar Wezo / Eman Eyşe / Emer Ağaye / Lo Miro (Halay)
Zerya Muşe / Yar Wezo / Eman Eyşe / Emer Ağaye / Lo Miro - Halay
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085b93f00ff3348c023a8aec394a1749dd878e53c03f1b35d58db90b9ac13914. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:25Z), 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/FRX762482914.
Ay Le Le Narine Delilo / Çepki Halay / Cida Koçeri
Gustilzer / Malan Barkir / Derde Buke / Çida Koçeri (Kürtçe Halay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499897db51bfb466c98adb65ca4b7389409fc1f86385a6a89cacd828ff0463e. 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/FRX872424471.
Yar Yeman / Temirtoy / Kezizer (Potpori Kürtçe)