Files
paperspec/spec/12-package.md
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alexmandClaude ea0a7efa78 feat: zipped packages, target set, checklists, audit fixes and a stress test
Features for the next six months (accessible HTML export, paperpack and
Lode on packages, the personal bundle):

- Zipped packages: the oracle writes and reads `.sct.zip` archives under
  the rules of spec/12 §12.2; validate.py and load.py accept them; a
  byte-identical zip of the tiny package joins the fixtures, and two
  broken archives (traversal, symbolic link) join fixtures/invalid.
- The target set of targeted F3 (spec/08 §8.10) is computed by the
  oracle and pinned by vectors/targets.jsonl under each digit rule; the
  rule now covers cells as well as sentences and the leaves of anchored
  containers, and defines a node's section.
- scienting-checklist/1 (provisional): a conformance check of an export,
  covered by a receipt as ["checklist", id, hash] (spec/08 §8.11), with a
  WCAG 2.1 AA fixture and its receipt.
- QA reports are signed like receipts (spec/08 §8.9).
- A `description` annotation body with role alt or long, so an
  accessible export can find a confirmed figure description; the layer
  fixture carries one, and the store's body-kind constraint allows it.
- scienting-spot-check/1, the seed payload, is registered with a schema.
- exercise, submission and grade are provisional until a course has
  used them.

Audit fixes, each with a vector or a broken package where one was
missing:

- Folder packages: symbolic links are refused on validate and load,
  manifest paths must not collide under case folding, listed files are
  matched by exact name, files are hashed in chunks under a size limit.
- Files are compared byte for byte, so CR LF, a byte order mark, NaN,
  a lone surrogate or invalid UTF-8 is refused instead of translated;
  integers beyond 2^53 are read as doubles, as canonical JSON writes them.
- Receipts: signature.key must equal by and the key must be valid when
  signed; a qa receipt's nodes must be the sample at the original's
  hashes, its scope must name qa.of, its errors must be sampled nodes;
  statuses are computed once, iteratively, so chains of spot-checks
  hundreds deep settle; Base64 and manifest shape errors become refusals
  instead of tracebacks; counts and the fidelity of roster-less packages
  are recomputed.
- The gate enforces rule 11 of spec/11 §11.4: changed nodes are
  validated against the node schema and the references between nodes
  are checked, so a set to a bad value, an insert with unknown
  properties or a delete of a referenced header cell is refused; a
  relabel to null drops the label; a reclassify drops foreign
  attributes; a split strips whitespace across runs; ids.jsonl order
  follows spec/04 §4.4 in every state; a move after itself is refused.
- Anchors: the relabel rule requires that nothing else changed below the
  node; an alias chain ending in a deletion no longer crashes resolve.
- Notation: a script after an empty group applies to the previous atom
  ({}^{14}C); letters are defined by Unicode block in spec/05 §5.4 and
  the oracle; \left) is complex.
- Page fingerprints delete whitespace before folding, so "10 -20" and
  "10-20" fold alike (spec/07 §7.1).
- Grades are summed with exact decimals; the reviewer error bound is
  computed with integer arithmetic.
- receipts and revocations are keyed by (doc_key, id) in SQL, since one
  revocation may be carried by several packages.

Checking:

- tools/stress.py: seeded randomized property tests over canonical JSON,
  normalization, notation, random correction walks, anchor resolution,
  Merkle roots, spot-check samples, error bounds, fingerprints, mutated
  archives and packages, rights and spot-check chains; CI runs it.
- check.py verifies every count and version the prose states against
  the repository, the zipped fixture and crafted archives, the checklist
  coverage, and nine more broken packages.
- CONTRIBUTING.md gains a release checklist.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-14 20:07:22 -04:00

4.7 KiB

12. The package

A document travels as a package: a folder named by its key, or the same folder zipped.

12.1 Files

Path Required Holds
MANIFEST.json Yes The manifest (12.3).
document.json Yes The document (2.2).
nodes.jsonl Yes Every node, in document order (3).
witnesses.json Yes Every witness, with its rights (2.3).
provenance.json Yes Tools and versions, backends, cached readings, stages and where each ran.
pages.jsonl No Every page of every witness (7.3).
locations.jsonl No Geometry per node and page (7.4).
references.jsonl No Parsed references and their resolution (10).
corrections.jsonl No Every correction, in order (11).
receipts.jsonl No Receipts and revocations, sorted by at and then id (8).
ids.jsonl No Retired IDs and legacy aliases (4.4).
suspects.jsonl No Unresolved suspects, sorted by id (5.7).
roster.json No The roster its receipts need (8.7).
assets/ No Images and crops, as <sha256>.<extension>, present or listed only.
datasets/<id>/ No Datasets (15).
derived/ No Rebuildable renderings, never authoritative (12.7).

An optional JSON Lines file with no records is omitted. Every file is in the canonical form of 1.9.

12.2 Paths

Paths use /, are relative, have no empty, . or .. segment, no backslash and no NUL, and are already normalized. No two paths are the same once case-folded, so a package reads alike on every file system. A package folder carries no symbolic links, and a consumer refuses one that does, as it refuses a package whose files exceed its own size limit. In a zip, entries are UTF-8 named, sit under one top-level folder named by the key, are stored or deflated, carry no symbolic links, and are unique; a consumer refuses an archive that breaks any of these, or whose expanded size exceeds its own limit. A producer that wants byte-identical archives writes entries sorted by path, dated 1980-01-01 00:00, with no extra fields; fixtures/packages/tiny2026example.sct.zip is such an archive.

12.3 The manifest

MANIFEST.json, scienting-package/1, is {format, doc, key, files}: the package format, scienting-doc/1, the document key, and every other file as {path, sha256, size}, sorted by the UTF-8 bytes of the path. An asset whose bytes stay in the asset store is listed with present: false; nothing else may be. The SHA-256 of MANIFEST.json pins the whole package.

12.4 Provenance

provenance.json holds tools ({name, version}), and optionally backends, readings (each cached reading's ID, witness, backend and SHA-256), stages (each stage's name, tool, input hashes, output hash, the processor where it ran, and the uses it ran under) and a session. Every stage that uses a model or an outside service records where it ran (14).

12.5 Text policies

Policy Means
full Every leaf keeps its content.
checks-only Every leaf has withheld: true and no content; panels drop their figure text; references keep their resolution but no CSL; there are no corrections, suspects or datasets; and the hashing scheme is keyed: hmac-team between the team's machines and hkdf-pages outside the team (5.8).

A checks-only package is how a team shares its annotations on a paywalled paper without sharing the paper. Its text lives in the team's private asset store, and only key holders can check its values. fixtures/packages/hale2026harmonic.checks-only is such an export of hale2026harmonic to another machine of the team, under the team key in fixtures/keys/.

12.6 Assets

Assets are named by SHA-256, so every read is rehashed and a regenerated crop is a different asset. Bytes that live only in the asset store are listed in the manifest with present: false, with their size.

12.7 Derived files

derived/ holds what a pinned tool makes from the package, such as derived/mathml.jsonl, whose lines are {node, run, tool, mathml} with run null for an equation node. Nothing derived is content, and a consumer may delete and rebuild it.

12.8 Media type and extension

A zipped package has the extension .sct.zip and the media type application/vnd.scienting.doc+zip.