thumb|Red cherries with stems A cherry is the fruit of many plants of the genus Prunus, and is a fleshy drupe (stone fruit). Commercial cherries are obtained from cultivars of several species, such
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 0x771c3583324e136e3cfb5b4f1055d878d8a47443353db1a6889825a37fa240fc. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50c692ff-f54b-4059-961e-3255a159d426.json and https://artists.proofprofile.net/proofs/artist/50c692ff-f54b-4059-961e-3255a159d426.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).