Moss Hill is a historic summer estate on Litchfield Road in Norfolk, Connecticut. Built in 1903, it is the first of more than thirty works of New York architect Alfredo S.G. Taylor in the summer reso
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 0x57f232e22ff110d16aa0a5aadc0c05dced6911bf028aaeed5f6e986b63e21ceb. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a633369-dc74-46fd-97c8-8e7f51f7717b.json and https://artists.proofprofile.net/proofs/artist/8a633369-dc74-46fd-97c8-8e7f51f7717b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).