Pith Number

pith:UCPORDZL

pith:2013:UCPORDZLXPJ5GDSA7RKKQTV5W6

not attested not anchored not stored refs pending

h-approximation: History-Based Approximation of Possible World Semantics as ASP

Frank Dylla, Manfred Eppe, Mehul Bhatt

arxiv:1304.4925 v4 · 2013-04-17 · 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{UCPORDZLXPJ5GDSA7RKKQTV5W6}

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	2026-05-18T03:20:58.249811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a09ee88f2bbbd3d30e40fc54a84ebdb7935c78097323b4fc2e07358828890199

Aliases

arxiv: 1304.4925 · arxiv_version: 1304.4925v4 · doi: 10.48550/arxiv.1304.4925 · pith_short_12: UCPORDZLXPJ5 · pith_short_16: UCPORDZLXPJ5GDSA · pith_short_8: UCPORDZL

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/UCPORDZLXPJ5GDSA7RKKQTV5W6 \
  | 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: a09ee88f2bbbd3d30e40fc54a84ebdb7935c78097323b4fc2e07358828890199

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76ce20290fc56fe8269eb4ca18bcffff6a7742210c33c0d7242d91ad6e5b080b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-04-17T19:28:42Z",
    "title_canon_sha256": "1bf0cb340b1d94d9ba4823cc9a38c40387c79055c9e1460fd9c303983a652985"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4925",
    "kind": "arxiv",
    "version": 4
  }
}