, also called , and , is a type of poisonous magic found in Japanese folklore. It is the Japanese derivative of the Chinese magic. It is said to have been widely used in ancient China. It is not cl
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 0xf33df11b37113a9611140ba55f5d6ce330b9a13fb583e6518015f7467d83f81f. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85ea8861-ec36-47b7-9a35-cbf2a21f87b5.json and https://artists.proofprofile.net/proofs/artist/85ea8861-ec36-47b7-9a35-cbf2a21f87b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).