thumb|Mountain pasture in Switzerland thumb|Lush lowland pasture Pasture (; past participle of 'to feed') is land used for grazing. Types of pasture Pasture lands in the narrow sense are enclosed
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 0x4f0798880d94e8fd5cef764fdc420d3033aac7ee101ecd9bae278bd2431e4054. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/167e3ae9-3efc-4a2b-a552-4421b935e653.json and https://artists.proofprofile.net/proofs/artist/167e3ae9-3efc-4a2b-a552-4421b935e653.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).