Pith Number

pith:Q3POVKJN

pith:2015:Q3POVKJNTHGTJJP2EKQHFIQCEC

not attested not anchored not stored refs pending

Web ontology representation and reasoning via fragments of set theory

Cristiano Longo, Daniele Francesco Santamaria, Domenico Cantone, Marianna Nicolosi-Asmundo

arxiv:1505.02075 v1 · 2015-05-08 · 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{Q3POVKJNTHGTJJP2EKQHFIQCEC}

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	2026-05-18T02:16:38.014461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86deeaa92d99cd34a5fa22a072a20220b6de9388dea0d197798905c45366ad2c

Aliases

arxiv: 1505.02075 · arxiv_version: 1505.02075v1 · doi: 10.48550/arxiv.1505.02075 · pith_short_12: Q3POVKJNTHGT · pith_short_16: Q3POVKJNTHGTJJP2 · pith_short_8: Q3POVKJN

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/Q3POVKJNTHGTJJP2EKQHFIQCEC \
  | 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: 86deeaa92d99cd34a5fa22a072a20220b6de9388dea0d197798905c45366ad2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d71657983b8941e20736b8364baba1ed7a8e6fab83187b43e0fd1fa97fb1709d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-05-08T16:00:44Z",
    "title_canon_sha256": "5aec07087215451f7c5a343731cc73dec3d891cdd67a781bb82163d3df23b42d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02075",
    "kind": "arxiv",
    "version": 1
  }
}