A ranger is typically someone in a law enforcement or military/paramilitary role specializing in patrolling a given territory, called "ranging" or "scouting". The term most often refers to: Park rang
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 0xb4a90180145b42d2c47d571ac1d36d62030c4c6e4fef7688933c8b116bd912da. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30c1c0b2-a992-474c-b9c2-d3742ea33144.json and https://artists.proofprofile.net/proofs/artist/30c1c0b2-a992-474c-b9c2-d3742ea33144.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).