Mesr () is a village in Jandaq Rural District of the Central District of Khur and Biabanak County, Isfahan province, Iran. Demographics Population At the time of the 2006 National Census, the village
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 0xb1c821243ac663701dad4a365f4dab04bb167aeeb88022d0576a157d37e872fd. Chain 2 (Bitcoin): anchored in block 953852 (2026-06-15T23:13:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/021661fd-7e4c-4e84-8ff8-ef6b1a0dff00.json and https://artists.proofprofile.net/proofs/artist/021661fd-7e4c-4e84-8ff8-ef6b1a0dff00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).