Sir Tom Stoppard (; born ; 3 July 1937 – 29 November 2025) was a British playwright and screenwriter. He wrote for film, radio, stage, and television, finding prominence with plays. His work covered t
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 0x8e12aea2c6420063571d6c93607f7fd72638627728ffe0a146b9e2ef476c62e4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75ac9c4f-d6f9-4599-9c29-c4ae720cc02f.json and https://artists.proofprofile.net/proofs/artist/75ac9c4f-d6f9-4599-9c29-c4ae720cc02f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rosencrantz and Guildenstern are Dead (Audiodrama)