open-standards/wai/http-conformance/cases/receipts/deep-65.wai.receipts
Transaction Science d29cd0731d http receipts: step 6, items that passed, recovery, bounds, legacy groups, anchoring
Round-2 fixes to http-delivery §8.1-§8.4, in the text, wai-rs, http_receipts.py and
the corpus together.

1. Claims run jwp-receipts §3.1 step 6 against what the passed delivery items
   deliver: energy against their object receipts (a named OER receipt is
   context_not_held); measurement/operating-point against the moq-jwp:object figure
   of an item delivered under the claimed group (energy_figure::HeldObject), else
   figure_not_held / context_not_held; delivery-gap against an item at its
   coordinates; decisions and recovery records against the declaration fetched by
   link; reconstruct-session context_not_held. Never acceptance without context.
2. A claim about a receipt attaches only through the group of an item whose
   delivery check passed.
3. A soft binding of another object is reported as attesting the ancestor only
   after §3.2 steps 2-5 pass (held object, a publisher key from a verified
   delivery, a matcher); otherwise receipt_not_about_object.
4. Bounds: receipt files 1 MiB (receipt_too_large), indexes 4 MiB with 256 items
   and 256 claims (receipt_index_too_large), each name fetched once per index
   (memo), 1024 fetches per index (receipt_fetch_budget_exhausted); the CLI fetches
   under a deadline (--deadline-ms) and these caps, never following a redirect.
5. A legacy (unlabelled) group file is refused (receipt_legacy_group): its name
   does not fix its parent.
6. The parent walk is clamped to 64 whatever bound is asked.
7. wai http receipts --key-origin retrieves the key log itself from --connect,
   sending anchoring_request_headers, following no redirect, and builds the
   Retrieval from the response.

Corpus: measurement/energy/gap claims and O5's index, legacy group, a 66-deep
chain, padded files and indexes, 256/257 items and claims, a fifty-fold item list;
1015 cases, Rust and Python agree.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-07 22:13:53 -04:00

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{"claims":[],"delivery":[{"object_receipt":{"content_hash":"002ebec0ca68dc089695fcc8b1375c6964fd8f25d07f79c1d3e568a684770b3b","group_id":65,"joules_micro":0,"kind":"object","leaf_version":2,"merkle_proof":{"direction_bits":0,"leaf_index":0,"siblings":[]},"object_id":0,"origin":"origin","track_alias":5},"property":{"acquisition":"","acquisition_evidence":"","content_hash":"002ebec0ca68dc089695fcc8b1375c6964fd8f25d07f79c1d3e568a684770b3b","group_receipt":"4fddb12f5ebd443ad749945c70453e80223fa9f89c642fbc14bb736a4fcc0c19","joules_micro":0}}],"kind":"wai-receipt-index","object":"002ebec0ca68dc089695fcc8b1375c6964fd8f25d07f79c1d3e568a684770b3b"}