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`jwp-receipts.md` defines `joules_micro` as "microjoules consumed producing this object". That fixes the unit and the scope of attribution and nothing else, so the field is a number-shaped hole: one implementation can write a counter reading, another a model, a third a constant, and all three are conformant, incomparable, and — worse — indistinguishable. This extension closes it. Any receipt carrying energy must declare how the figure was acquired (`HwShunt` / `ModelBased` / `Estimator`, the vocabulary the sibling receipt families already use rather than a new one for media), and must declare whether the measurement was good enough to publish. Also specified: the bracketed marginal protocol (idle bracket with standard deviation, saturating multi-thread burst, busy bracket, marginal delta divided by completions), the five bracket parameters that must accompany any published figure, and what the number is not — machine-specific, marginal over idle, scoped to what the interface reports, build-dependent, and never verifiable by re-execution. Two corrections this document forced on the implementation: **The publication bar moves from 3x to 10x, on evidence.** A later reading of the same clip at a 3.8x marginal-to-noise ratio — inside what the previous rule called "usable" — reported 2,469 uJ against 10,565 uJ from a quieter run. A 4.3x disagreement from a reading the rule had passed. The 3-10 band is sound for comparing two workloads back-to-back on one machine, where the bias applies to both; it is not sound for an absolute figure. The bias has a direction, too: a busy machine inflates the idle baseline that is then subtracted, so a poor bracket always reads LOW. An implementation reporting its own energy errs toward flattering itself, which is why the check has to be automatic. **The worked example is a failing one, deliberately.** The draft of this file carried a clean-looking bracket with an idle standard deviation and a quality ratio for the 10,565 uJ run — numbers that run never produced, because it predates the standard-deviation reporting. Inventing them in a document about measurement honesty is the exact failure the document exists to prevent, so the example is now the real 3.8x bracket, labelled as one this spec forbids publishing, with a note saying why a clean bracket is not currently obtainable on the authoring machine. The quiet row in the comparison table is marked as predating the rule rather than given a ratio it never had. Linked from SPEC.md beside the receipt sub-spec, and from the `joules_micro` row of jwp-receipts.md that it constrains. |
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| avatars.md | ||
| confidentiality.md | ||
| determinism-tiers.md | ||
| energy-measurement.md | ||
| haptics.md | ||
| interactive-worlds.md | ||
| jwp-receipts.md | ||
| linear-film.md | ||
| provenance.md | ||
| quantum-ops.md | ||
| quantum-sim.md | ||
| reconstruction-binding.md | ||
| score.md | ||
| spatial-audio.md | ||
| state-feeds.md | ||
| ternary-tt.md | ||
| volumetric.md | ||