Pith Number

pith:7K2A44KN

pith:2018:7K2A44KN4J4DFZYPTTVAD7DD5A

not attested not anchored not stored refs pending

Logic for approximate entailment in ordered universes of discourse

Francesc Esteva, Llu\'is Godo, Thomas Vetterlein

arxiv:1808.10312 v1 · 2018-08-30 · 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{7K2A44KN4J4DFZYPTTVAD7DD5A}

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	2026-05-18T00:06:49.182865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fab40e714de27832e70f9cea01fc63e82de12034ce054d85dc98ae95aa87221a

Aliases

arxiv: 1808.10312 · arxiv_version: 1808.10312v1 · doi: 10.48550/arxiv.1808.10312 · pith_short_12: 7K2A44KN4J4D · pith_short_16: 7K2A44KN4J4DFZYP · pith_short_8: 7K2A44KN

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/7K2A44KN4J4DFZYPTTVAD7DD5A \
  | 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: fab40e714de27832e70f9cea01fc63e82de12034ce054d85dc98ae95aa87221a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df0d9eee19b4d9ef9f3035dc93e79c94994f53fabf18984cae26ec011788825d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-08-30T14:30:05Z",
    "title_canon_sha256": "675687ed3e79cc266c06f664dcd7a14e5d7380e148bfd447556238640baf3cee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10312",
    "kind": "arxiv",
    "version": 1
  }
}