Nosferatu: A Symphony of Horror () is a 1922 silent German Expressionist vampire film directed by F. W. Murnau from a screenplay by Henrik Galeen. It stars Max Schreck as Count Orlok, a vampire who pr
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 0x92ddea27d67ee7d56aee91ff8238871eb8afd967ded0ab1d4ae71f5b71409662. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7b645c0-d53a-4ba6-aae4-35947eb8816c.json and https://artists.proofprofile.net/proofs/artist/c7b645c0-d53a-4ba6-aae4-35947eb8816c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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