Jay Scott Greenspan (born September 23, 1959), known professionally as Jason Alexander, is an American actor and comedian. Over the course of his career, he has received an Emmy Award and a Tony Award
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 0x4257d15c526904c4be8f433e1d3af2a98ccc5f3d5627bd8e2c518462824f189b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e11f5952-ef66-4450-a9a7-d9e91372f8ab.json and https://artists.proofprofile.net/proofs/artist/e11f5952-ef66-4450-a9a7-d9e91372f8ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).