Pith Number

pith:BOKV5KFF

pith:2018:BOKV5KFF2XXXW6XDA2UNLCPTBZ

not attested not anchored not stored refs pending

Don't Panic! Better, Fewer, Syntax Errors for LR Parsers

Laurence Tratt, Lukas Diekmann

arxiv:1804.07133 v4 · 2018-04-19 · cs.PL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BOKV5KFF2XXXW6XDA2UNLCPTBZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Syntax Repair as Language Intersection

Receipt and verification

First computed	2026-07-05T01:15:54.064861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b955ea8a5d5ef7b7ae306a8d589f30e54d4851b43bda3af877191c400681781

Aliases

arxiv: 1804.07133 · arxiv_version: 1804.07133v4 · doi: 10.48550/arxiv.1804.07133 · pith_short_12: BOKV5KFF2XXX · pith_short_16: BOKV5KFF2XXXW6XD · pith_short_8: BOKV5KFF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BOKV5KFF2XXXW6XDA2UNLCPTBZ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 0b955ea8a5d5ef7b7ae306a8d589f30e54d4851b43bda3af877191c400681781

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3430da64bacea6289ad06ff233627f09bdcec3550c9ee9e8f3d8360047f36f2f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-04-19T13:11:57Z",
    "title_canon_sha256": "abc7b809d4120d1c4368ea56b857a05471617211eeaaa512723989ba0271a1a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07133",
    "kind": "arxiv",
    "version": 4
  }
}