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 0x73139cad9142d898f3687b51cb113e73d87fc247bd8308f3db3b73df84dd05b6. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5901ccd-2a24-46f1-b04e-c303220989f3.json and https://artists.proofprofile.net/proofs/artist/f5901ccd-2a24-46f1-b04e-c303220989f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Echoes of the Ottoman Psychedelia, Vol. 1
Echoes of the Ottoman Psychedelia, Vol. 2
Dance of Anatolia (Wedding Halay Grooves)
Yozgat Sürmelisi (Dersini Almış da Ediyor Ezber)
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 0xab5fb9c9f2bb313621fd074df6931aebaf04061acfb5c60fc0d2ce4341b77086. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:56:15Z), 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/QT3F62591773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d83760dc82d65bfc6abb0676ce37d12c4d2a93d81b437018d591491348460c9. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:25:59Z), 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/QT3F62591779.
Psychedelic Folk Rock of Anatolia (Psycheledic Version)