Lilas (, also Romanized as Līlās, Lailās, and Leylās; also known as Līlān and Leylān) is a village in Solgi Rural District, Khezel District, Nahavand County, Hamadan Province, Iran. At the 2006 census
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 0xf76d73118adb4a43f8e831e06a955aa712fbcf80608b8a0d65806a1e524bc88f. Chain 2 (Bitcoin): anchored in block 953982 (2026-06-16T17:42:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d11d63e-34de-43f1-b16f-3790b4df41a6.json and https://artists.proofprofile.net/proofs/artist/2d11d63e-34de-43f1-b16f-3790b4df41a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).