James Goldman (June 30, 1927 – October 28, 1998) was an American playwright and screenwriter. He won an Academy Award for his screenplay The Lion in Winter (1968). His younger brother was novelist and
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 0xc0f066703db87fa6af7e97a7c7c2baa45f09fa98b817af3675a4e75b257a2e15. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e25e9f9-634f-4b06-b9be-bfb369eaadef.json and https://artists.proofprofile.net/proofs/artist/2e25e9f9-634f-4b06-b9be-bfb369eaadef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).