Pith Number

pith:S3M3C532

pith:2013:S3M3C532BPXLUUMHRP5LV6YBSI

not attested not anchored not stored refs pending

SPOOK: A System for Probabilistic Object-Oriented Knowledge Representation

Avi Pfeffer, Brian Milch, Daphne Koller, Ken T. Takusagawa

arxiv:1301.6733 v1 · 2013-01-23 · 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{S3M3C532BPXLUUMHRP5LV6YBSI}

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	2026-05-18T03:35:12.629549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96d9b1777a0beeba51878bfabafb01923d130ce058a589dc40b6a3d033b36d16

Aliases

arxiv: 1301.6733 · arxiv_version: 1301.6733v1 · doi: 10.48550/arxiv.1301.6733 · pith_short_12: S3M3C532BPXL · pith_short_16: S3M3C532BPXLUUMH · pith_short_8: S3M3C532

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/S3M3C532BPXLUUMHRP5LV6YBSI \
  | 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: 96d9b1777a0beeba51878bfabafb01923d130ce058a589dc40b6a3d033b36d16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e24a577c8d1a562f50936b66e32b521f2c269b568fbfdb4a78646bef9582dac7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-01-23T16:00:32Z",
    "title_canon_sha256": "af6384a5ead59f9cf1854ba9595eec50860deaa9299323a32c7463258390fc34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6733",
    "kind": "arxiv",
    "version": 1
  }
}