Pith Number

pith:IKCG7I35

pith:2003:IKCG7I35UPDJ7TUHDPNDEUOKOH

not attested not anchored not stored refs pending

A Situation Calculus-based Approach To Model Ubiquitous Information Services

Dong Wen-Yu, Lin Meng-Xiang, Xu Ke

arxiv:cs/0311052 v2 · 2003-11-28 · cs.AI · cs.HC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IKCG7I35UPDJ7TUHDPNDEUOKOH}

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	2026-07-04T14:24:39.160135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42846fa37da3c69fce871bda3251ca71f618798bd711c8c23aee8eb7b9cae8de

Aliases

arxiv: cs/0311052 · arxiv_version: cs/0311052v2 · doi: 10.48550/arxiv.cs/0311052 · pith_short_12: IKCG7I35UPDJ · pith_short_16: IKCG7I35UPDJ7TUH · pith_short_8: IKCG7I35

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/IKCG7I35UPDJ7TUHDPNDEUOKOH \
  | 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: 42846fa37da3c69fce871bda3251ca71f618798bd711c8c23aee8eb7b9cae8de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "211fd72b253e93e0ae473fdd11aa15c9c028efd75f600607c903222d292a9e7f",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "",
    "primary_cat": "cs.AI",
    "submitted_at": "2003-11-28T09:29:35Z",
    "title_canon_sha256": "132b6a64abbfdb224a1bf9a6f494aeef631cd9633b16bab46673814b7c3d5c30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0311052",
    "kind": "arxiv",
    "version": 2
  }
}