Mashed potato or mashed potatoes (American, Canadian, and Australian English), colloquially known as mash (British English), is a dish made by mashing boiled or steamed potatoes, usually with added mi
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 0xe1ba5c36b8f8d5e1d2ff24fc348518ebefd031d45ce4f253298519fbc5e7db0c. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4169812-4e5c-4159-b6f1-0b5db9b7f34c.json and https://artists.proofprofile.net/proofs/artist/b4169812-4e5c-4159-b6f1-0b5db9b7f34c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).