open-standards/wai/claim-conformance/.gitattributes
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wai: typed receipt classes and the soft binding class, reading OER through the OER module
A JWP receipt says what was delivered, by whom and at what energy cost, and
binds to its object one way. Other statements about the same objects had
nowhere to go, and energy-measurement §2 requires an acquisition class beside
every non-zero figure, which the object receipt has no member for.
jwp-receipts §2.4.3-§2.4.7 adds a `claim` kind with one envelope, one
canonical form (RFC 8785) and one signature rule for the classes energy,
lawful-basis and log-inclusion. §2.6 and §3.2 add a second, deliberately
weaker binding class: a publisher-signed soft binding with a resolution
endpoint, under the ancestor rule. §3.1 step 3 fixes a strict Ed25519 rule. A
declaration that a decision or a recovery record is checked against is
verified before anything is compared with it (`context_invalid`).

OER as settled on main is authoritative: this adds no second OER reader and
changes no OER rule, vector, verifier or document. An OER receipt an energy
claim names is read by oer::load under the document profile, verified by
oer::verify_receipt, and its figure read by the exact quantity reader the
composition checks use, through a new crate-private oer::rounds_to_micro.
claim_verify.py does the same with the OER reference's load, verify_receipt
and dec. The claim envelope keeps its own step-1 reader (claim_text.rs),
which reads claims only.

- Acquisition classes are the refined ones. The energy body carries the class
  as energy-measurement §2.7 writes it in JSON (energy_provenance,
  energy_uncertainty, energy_counter_filtering, energy_calibration_ref),
  present and null where a class has none, so a claim keeps one canonical
  form. Legacy HwShunt is refused, since no claim predates the refinement
  (energy_legacy_acquisition); missing, misplaced or sub-floor evidence is
  energy_acquisition_evidence. The grade correspondence is oer-receipts §2's,
  an exhaustive match over all five variants.
- §3.1 step 2's member tables give exactly the type step 2 checks, and step 2
  lists what the class rules add to a type as step 4's, never field_type. Both
  verifiers read a declaration in its table's order (they had read purposes
  before vocabulary and fragment, and every encoding after every member, so a
  declaration with two defects gave another reason than the text).
- oer::py_float_repr writes a double at a tie between two shortest decimals as
  CPython's repr does (round half to even at the shortest length). No content
  address or verdict depended on it: main's number profile keeps floats out of
  every receipt body. It changed the printed name of a vector named by such a
  number, which both OER verifiers print and the OER fuzzer compares. Fourteen
  doubles CPython 3.14.7 wrote are pinned.
- claim-conformance/: 154 vectors covering all 40 reasons, the canonical
  fixture recomputed by claim_verify.py and pinned, a second verifier
  (claim_verify.py) that shares no code with wai-rs, and differential.py,
  which runs both on inputs the corpus does not hold. receipt_claims joins the
  conformance library tests and both corpus loops.

Checked on this machine (macOS arm64) on the stream's tree:
- library tests with receipt_claims (dev; oer + receipt_claims also release);
- wai_claim_vectors and wai_oer_vectors verify their corpora;
- claim_verify.py reports every vector's declared outcome;
- differential.py: its default families and 20,000 random inputs (seed 7):
  no verdict differs and nothing crashes;
- oer2_verify.py passes every OER vector file and refuses every unreadable
  document, the C kernel's output equals firmware_vectors.json, and
  fuzz_differential.py (seed 1, 20,000 documents) finds no divergence.
And on this commit's tree, the per-link gate: build, library tests,
carriage, every corpus in the conformance loop, byte-exact, wasm32.

Not run here: the Linux and Windows legs (CI runs Linux; the Windows runner
is offline). The Python scripts are run by hand, not in CI.
Not done: key discovery (every claim signature presumes the verifier holds
the key), an authority class for who may sign which class, region- or
time-scoped soft bindings, and checking a log's receipt under its profile.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-09-30 01:42:45 -04:00

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# The pinned corpus is compared byte-for-byte with what the generator writes (LF), on
# every platform of the CI matrix. Keep a CRLF checkout from turning that into a failure.
* text eol=lf