Bijan Mofid (; May 31, 1935 – November 12, 1984)بیژن مفید؛ راوی غصه‌دار شهر قصه‌ها, BBC Persian was an influential Iranian playwright and stage director. His most famous work, Shahr-e Ghesseh, is an
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2766d48648e0ed21a67e69350a7d22592be75149913bd36c2e359f4da5eeb715. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/239d95d7-97e2-41a7-ab31-80dc3abef4b6.json and https://artists.proofprofile.net/proofs/artist/239d95d7-97e2-41a7-ab31-80dc3abef4b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).