Navid Kermani (; ; ; born 27 November 1967) is a German writer and orientalist. He is the author of several novels as well as books and essays on Islam, the Middle East and Christian-Muslim dialogue.
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 0xcbab40084fc3b8e9655d3d29043db2f81aebaf474d9251a0e886af5308591cfe. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bdc5acc-0513-49ce-a787-27a91557a30b.json and https://artists.proofprofile.net/proofs/artist/3bdc5acc-0513-49ce-a787-27a91557a30b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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