"Nice guy" is an informal term, commonly used with either a literal or a sarcastic meaning, for a man. In the literal sense, the term describes a man who is agreeable, gentle, compassionate, sensitive
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 0x6da963c78e826c6bf66ea941c2ea0e9b9ff17881741c29b36c1451d7093a4d8e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cca77d96-e06b-42b0-a5e3-73f01078b48e.json and https://artists.proofprofile.net/proofs/artist/cca77d96-e06b-42b0-a5e3-73f01078b48e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).