SWhat changed
Defined information from selectable symbol sequences by a logarithmic count and related its transmission to frequency range and time.
Scientific scope
The record is Hartley's sole-author 1928 paper and its distinguishability-based measure. It does not absorb Shannon's later probabilistic entropy, noisy-channel coding theorem or all modern information theory.
Evidence
The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is Hartley's sole-author 1928 paper and its distinguishability-based measure. It does not absorb Shannon's later probabilistic entropy, noisy-channel coding theorem or all modern information theory.
Contributors
- Ralph V. L. Hartley · 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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