Pith Number

pith:LWD7UTMJ

pith:2011:LWD7UTMJR2Y3SXANDATSS7DOB2

not attested not anchored not stored refs pending

Rule-Based Semantic Sensing

Alun Preece, Przemyslaw Woznowski

arxiv:1107.2087 v1 · 2011-07-11 · 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{LWD7UTMJR2Y3SXANDATSS7DOB2}

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	2026-05-18T02:21:42.940304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d87fa4d898eb1b95c0d1827297c6e0e971560ae34077e50ff22edc2644d51ae

Aliases

arxiv: 1107.2087 · arxiv_version: 1107.2087v1 · doi: 10.48550/arxiv.1107.2087 · pith_short_12: LWD7UTMJR2Y3 · pith_short_16: LWD7UTMJR2Y3SXAN · pith_short_8: LWD7UTMJ

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/LWD7UTMJR2Y3SXANDATSS7DOB2 \
  | 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: 5d87fa4d898eb1b95c0d1827297c6e0e971560ae34077e50ff22edc2644d51ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0203f2b35cbbd560e6e8c9dce1da07c0a2802d58d8fb5f0171da52f2190daa5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-07-11T18:50:19Z",
    "title_canon_sha256": "20dc6e172eab3b74054e621c407a636f050abb92c05e73bb554b77bd4a6263a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2087",
    "kind": "arxiv",
    "version": 1
  }
}