Tikan (, also Romanized as Tīkan and Tīken) is a village in Nivan Rural District, in the Central District of Golpayegan County, Isfahan Province, Iran. At the 2006 census, its population was 403, in 1
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 0x6386eb86c4ebaa7a2b613420438f65f86b7a9d3c340b774df5e24c466f19c301. 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/be47a190-6422-40de-93f4-ea9a3a21024f.json and https://artists.proofprofile.net/proofs/artist/be47a190-6422-40de-93f4-ea9a3a21024f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).