Pith Number

pith:WFXDJJGE

pith:2012:WFXDJJGE6I63LK2SAT7G3P3NZ5

not attested not anchored not stored refs pending

Characterizing Quantifier Extensions of Dependence Logic

Fredrik Engstr\"om, Juha Kontinen

arxiv:1202.5247 v1 · 2012-02-23 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFXDJJGE6I63LK2SAT7G3P3NZ5}

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	2026-05-18T04:01:38.632726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b16e34a4c4f23db5ab5204fe6dbf6dcf6c3f5c9699ce0782c99b53efe4f7cf8e

Aliases

arxiv: 1202.5247 · arxiv_version: 1202.5247v1 · doi: 10.48550/arxiv.1202.5247 · pith_short_12: WFXDJJGE6I63 · pith_short_16: WFXDJJGE6I63LK2S · pith_short_8: WFXDJJGE

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/WFXDJJGE6I63LK2SAT7G3P3NZ5 \
  | 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: b16e34a4c4f23db5ab5204fe6dbf6dcf6c3f5c9699ce0782c99b53efe4f7cf8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "960e7a9f74168541c3138d46a3f21edd607ad07f8530f925b38b751a1ce00bb6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-02-23T18:00:15Z",
    "title_canon_sha256": "db023872283d644e1a8841d50679a88e193ff31ccdad50aa3d2629786206e8d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5247",
    "kind": "arxiv",
    "version": 1
  }
}