Nathaniel Freeman may refer to: Nathaniel Freeman (physician) (1741–1827), American physician and politician Nathaniel Freeman Jr. (1766–1800), American politician Nathaniel Freeman (Nova Scotia
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 0x5c47989c5f1eeefc80669965d34c703c67633b5c416047491b21dd31c338cb62. 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/830941a0-d1fd-4a34-8341-a4bacb8abc4f.json and https://artists.proofprofile.net/proofs/artist/830941a0-d1fd-4a34-8341-a4bacb8abc4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).