Pith Number

pith:CIKAQWNU

pith:2013:CIKAQWNUGW6YQ3BYZQNPHAAH73

not attested not anchored not stored refs pending

The Relationship between Knowledge, Belief and Certainty

Joseph Y. Halpern

arxiv:1304.1508 v1 · 2013-03-27 · 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{CIKAQWNUGW6YQ3BYZQNPHAAH73}

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	2026-05-18T03:28:55.625505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12140859b435bd886c38cc1af38007fec3265fdc6f0715b22d5508d9118d34b9

Aliases

arxiv: 1304.1508 · arxiv_version: 1304.1508v1 · doi: 10.48550/arxiv.1304.1508 · pith_short_12: CIKAQWNUGW6Y · pith_short_16: CIKAQWNUGW6YQ3BY · pith_short_8: CIKAQWNU

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/CIKAQWNUGW6YQ3BYZQNPHAAH73 \
  | 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: 12140859b435bd886c38cc1af38007fec3265fdc6f0715b22d5508d9118d34b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f48170d9b9ae1eda6ce97e5927edfcf1b95f84a08852adb8fec8c88fc62f4a15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-03-27T19:38:29Z",
    "title_canon_sha256": "f7d60fbeeddf9512203eca9b6aa82a84159af6141c5a2d3387e7eba207137483"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1508",
    "kind": "arxiv",
    "version": 1
  }
}