"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 0xd1291adb50890b605de73c6805390026222830a4a0b3ebacbf7271ca816c22fb. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26cbbfda-1c99-4da2-9103-8436996736ed.json and https://artists.proofprofile.net/proofs/artist/26cbbfda-1c99-4da2-9103-8436996736ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).