Pardis () is a city in the Central District of Pardis County, Tehran province, Iran, serving as capital of both the county and the district. It is a suburb located northeast of Tehran. Demographic
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 0xe29224e1b9e67fc1047927025c0ae8893e1537f0d29d205f8f605277e1042838. 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/5d96d749-c1e9-438b-823f-1724d84e36af.json and https://artists.proofprofile.net/proofs/artist/5d96d749-c1e9-438b-823f-1724d84e36af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).