Zerrin is a Turkish feminine given name which, etymologically, comes from Persian (, "Zarrin", ). Notable people with the name include: Zerrin Temiz musician, vocalist, music producer, singer of "Hi
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 0x4bce3287ea67d5577fd9efc1a434fa430b23c27a5a6a78582d97fbb5d76740b5. 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/4387f9b0-3e3a-407e-b0f9-c64b69d5c1b5.json and https://artists.proofprofile.net/proofs/artist/4387f9b0-3e3a-407e-b0f9-c64b69d5c1b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).