Pith Number

pith:IW5P5WYI

pith:2013:IW5P5WYIIKTEY77V7WOBTGNQI6

not attested not anchored not stored refs pending

Knowing Whether

Hans van Ditmarsch, Jie Fan, Yanjing Wang

arxiv:1312.0144 v3 · 2013-11-30 · 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{IW5P5WYIIKTEY77V7WOBTGNQI6}

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	2026-05-18T03:04:58.944812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45bafedb0842a64c7ff5fd9c1999b0479128626d5c524671b4556b0e2685b002

Aliases

arxiv: 1312.0144 · arxiv_version: 1312.0144v3 · doi: 10.48550/arxiv.1312.0144 · pith_short_12: IW5P5WYIIKTE · pith_short_16: IW5P5WYIIKTEY77V · pith_short_8: IW5P5WYI

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/IW5P5WYIIKTEY77V7WOBTGNQI6 \
  | 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: 45bafedb0842a64c7ff5fd9c1999b0479128626d5c524671b4556b0e2685b002

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1edbd8e4fb6c4d379d9f8a4c77a498f6c550fda83078fab3011fcd51a6b31f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-11-30T19:18:49Z",
    "title_canon_sha256": "44d225b0b622ced97e394d6d6085a949e856a3d55c6ebdecca5750e849430568"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.0144",
    "kind": "arxiv",
    "version": 3
  }
}