thumb|Misu thumb|Misu-garu (misu powder) Mișu () is a beverage made from the traditional Korean grain powder misu-garu (), which is a combination of 7–10 different grains. It is usually served on hot
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 0xd5e7e29745fcf7b574eb494739eba07536dd9f76bb068cdfd19facc11d454f1a. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a557ce8e-2c08-40db-a65c-b0964f9f745c.json and https://artists.proofprofile.net/proofs/artist/a557ce8e-2c08-40db-a65c-b0964f9f745c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).