Stephen Amidon (born 1959) is an American author and critic. Life and career Amidon was born in Chicago. He grew up on the East Coast of the United States of America, including a spell in Columbia, M
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 0x4f92a1ecb89fb347a25c79062e4b1eedeff71e058cd7dea21b7a1f9037994d71. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d466aa76-c2ee-42d3-9456-4c948920bcb9.json and https://artists.proofprofile.net/proofs/artist/d466aa76-c2ee-42d3-9456-4c948920bcb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).