What changed
Described automatic printing-telegraph enciphering by combining message and key signals.
Scientific scope
The record is Vernam's sole-author 1926 paper and its telegraph cipher system. It is not treated as a proof of perfect secrecy, a sole-origin claim for every one-time-pad concept or a replacement for Shannon's later information-theoretic analysis.
Evidence
The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is Vernam's sole-author 1926 paper and its telegraph cipher system. It is not treated as a proof of perfect secrecy, a sole-origin claim for every one-time-pad concept or a replacement for Shannon's later information-theoretic analysis.
Contributors
- G. S. Vernam · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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