Pith Number

pith:OFPECNHY

pith:2014:OFPECNHYGWNW24YD3Z426AX3OE

not attested not anchored not stored refs pending

The Logical Difference for the Lightweight Description Logic EL

Boris Konev, Dirk Walther, Frank Wolter, Michel Ludwig

arxiv:1401.5850 v1 · 2014-01-23 · cs.LO · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OFPECNHYGWNW24YD3Z426AX3OE}

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	2026-05-18T03:01:23.712308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

715e4134f8359b6d7303de79af02fb712b77ff86fd0c0b151533bdd8d815d5af

Aliases

arxiv: 1401.5850 · arxiv_version: 1401.5850v1 · doi: 10.48550/arxiv.1401.5850 · pith_short_12: OFPECNHYGWNW · pith_short_16: OFPECNHYGWNW24YD · pith_short_8: OFPECNHY

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/OFPECNHYGWNW24YD3Z426AX3OE \
  | 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: 715e4134f8359b6d7303de79af02fb712b77ff86fd0c0b151533bdd8d815d5af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10cb6cb636cbcf03926097940575964ef526d2fdebfd13eb9cad9bedb6c4862f",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-01-23T02:43:23Z",
    "title_canon_sha256": "1f1a7092c9c868d7e562e63feb40b79cc734b0fd354c69b536007e820e1277e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5850",
    "kind": "arxiv",
    "version": 1
  }
}