Gregory Maguire (born June 9, 1954) is an American novelist. He is the author of Wicked, Confessions of an Ugly Stepsister, and several dozen other novels for adults and children. Many of Maguire's ad
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe686e4571dc96aff3fe5e1d9582b36f7c71d0113b94aa9cd407195944a3a61a. 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/e4ab4c27-ef86-4ad8-a34f-48b362454e03.json and https://artists.proofprofile.net/proofs/artist/e4ab4c27-ef86-4ad8-a34f-48b362454e03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wicked (Die Hexen von Oz - Die Vorlage zum Kinofilm)