route-record: version 2 prices per operation, ranks by measured failure, binds a hop receipt to its output #552
2026-10-31
Merge origin/main (#553: two arm64-heavy conformance jobs build without debuginfo) into wai/route-physics
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Co-Authored-By: Claude Opus 5.5 <[email protected]>
route-record corpus: the version-2 request's doc says what it is
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Co-Authored-By: Claude Opus 5.5 <[email protected]>
route-record: SPEC's summary of a routed job states version 2; §4.4's rationale reflowed
Co-Authored-By: Claude Opus 5.5 <[email protected]>
route-record: version 2 prices per operation, ranks by measured failure, binds a hop to its output
A price book of version 2 prices each operation of an endpoint in its own entry, and a job's candidates are the entries of its operation, so an encode and a decode are estimated, capped and ranked at their own prices. An entry states its measured failures over a basis (hops, period), and a candidate carries its expected cost and expected time to first byte per successful job (the list figure plus failed/(hops - failed) failures' worth), which the price, ttfb and targets keys read first: the order that minimises the expected spend over the attempts. A basis under 100 hops is too thin; thin or null failures are unknown, their expected figures null and ranked by the existing rule for null. The job pays the list price: the limits read it and a line bills the billed attempt. A record of version 2 states the served hop's outputs, and its OER/2 receipt's subject.output must be their commitment (oer-receipts §3 Output: the content hash of one, the jwp-receipts §2.2 root over several), or receipt_output_mismatch. Version 1 documents and records verify exactly as before; the corpus keeps every version-1 vector byte for byte but the unknown-version control (now version 3) and adds 36 of version 2. route_record_verify.py reads version 2 from the text. Co-Authored-By: Claude Opus 5.5 <[email protected]>