Pith Number

pith:M7KR6EBK

pith:2014:M7KR6EBKG3AJEPAJ6KWSN7CJQH

not attested not anchored not stored refs pending

Error Reporting in Parsing Expression Grammars

Andr\'e Murbach Maidl, Fabio Mascarenhas, Roberto Ierusalimschy, S\'ergio Medeiros

arxiv:1405.6646 v3 · 2014-05-26 · cs.PL · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M7KR6EBKG3AJEPAJ6KWSN7CJQH}

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.

Receipt and verification

First computed	2026-05-18T01:11:08.769788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67d51f102a36c0923c09f2ad26fc4981ceb18b1057f539e071bdf4ec20aad6b9

Aliases

arxiv: 1405.6646 · arxiv_version: 1405.6646v3 · doi: 10.48550/arxiv.1405.6646 · pith_short_12: M7KR6EBKG3AJ · pith_short_16: M7KR6EBKG3AJEPAJ · pith_short_8: M7KR6EBK

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/M7KR6EBKG3AJEPAJ6KWSN7CJQH \
  | 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: 67d51f102a36c0923c09f2ad26fc4981ceb18b1057f539e071bdf4ec20aad6b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faa9f2584dc46334028ee514a68f10afa2a2d7373eadf085f5d0b4c7ff9258f4",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2014-05-26T17:14:52Z",
    "title_canon_sha256": "39991960794282855099d01d1435df84a3598c577c229f81cff3f8aba52534d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6646",
    "kind": "arxiv",
    "version": 3
  }
}