Pith Number

pith:NH2GEXWX

pith:2014:NH2GEXWXUL32ICKSLEJBI773PP

not attested not anchored not stored refs pending

Propositional Logics Complexity and the Sub-Formula Property

Edward Hermann Haeusler (PUC-Rio)

arxiv:1401.8209 v3 · 2014-01-31 · cs.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{NH2GEXWXUL32ICKSLEJBI773PP}

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	2026-05-18T02:19:08.609001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69f4625ed7a2f7a409525912147ffb7bcfbf19b49faa310835bda9a247978149

Aliases

arxiv: 1401.8209 · arxiv_version: 1401.8209v3 · doi: 10.48550/arxiv.1401.8209 · pith_short_12: NH2GEXWXUL32 · pith_short_16: NH2GEXWXUL32ICKS · pith_short_8: NH2GEXWX

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/NH2GEXWXUL32ICKSLEJBI773PP \
  | 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: 69f4625ed7a2f7a409525912147ffb7bcfbf19b49faa310835bda9a247978149

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a296c3155a0258624fd51b1323a4f168796a45049d52861e3676c0b11115690",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-01-31T16:11:43Z",
    "title_canon_sha256": "621c56072541f946f188de398fd3c970ec0adddfd0c37a3b7d7a819d41bb8771"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.8209",
    "kind": "arxiv",
    "version": 3
  }
}