Pith Number

pith:AKFBXALG

pith:2012:AKFBXALGEIQD7S7FHMI5TIPP3K

not attested not anchored not stored refs pending

Derivatives of Approximate Regular Expressions

Hadrien Jeanne, Jean-Marc Champarnaud, Ludovic Mignot

arxiv:1205.1825 v3 · 2012-05-08 · 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{AKFBXALGEIQD7S7FHMI5TIPP3K}

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	2026-05-18T03:52:38.282342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

028a1b816622203fcbe53b11d9a1efda89ab00f40d3ada411825267b13da1c67

Aliases

arxiv: 1205.1825 · arxiv_version: 1205.1825v3 · doi: 10.48550/arxiv.1205.1825 · pith_short_12: AKFBXALGEIQD · pith_short_16: AKFBXALGEIQD7S7F · pith_short_8: AKFBXALG

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/AKFBXALGEIQD7S7FHMI5TIPP3K \
  | 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: 028a1b816622203fcbe53b11d9a1efda89ab00f40d3ada411825267b13da1c67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd8be92ae4c6090234d18df431582633d056ff4187dceba1ac75db540c093335",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2012-05-08T20:59:33Z",
    "title_canon_sha256": "df83eb44c9fce49490856f29d61791d49150ab31ac392d5432d39e06ecf3c7c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1825",
    "kind": "arxiv",
    "version": 3
  }
}