Shinjin () is a central concept in Japanese Pure Land Buddhism which indicates a state of mind which totally entrusts oneself to Amida Buddha's other-power (Japanese: tariki), having utterly abandoned
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 0x276a65f08d32430bb7e3a5df8c17daf7f968cf364e25389063f71aa948f60c61. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b8f47b7-2779-4989-b62a-874bd6294dc4.json and https://artists.proofprofile.net/proofs/artist/8b8f47b7-2779-4989-b62a-874bd6294dc4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).