Pith Number

pith:KQGUQNB4

pith:2013:KQGUQNB4WLROMCI2G2EBXU5ODQ

not attested not anchored not stored refs pending

Learning Polytrees

Sanjoy Dasgupta

arxiv:1301.6688 v1 · 2013-01-23 · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KQGUQNB4WLROMCI2G2EBXU5ODQ}

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	2026-05-18T03:35:13.009941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

540d48343cb2e2e6091a36881bd3ae1c125a8bad1a19208f901ddc85a953d08f

Aliases

arxiv: 1301.6688 · arxiv_version: 1301.6688v1 · doi: 10.48550/arxiv.1301.6688 · pith_short_12: KQGUQNB4WLRO · pith_short_16: KQGUQNB4WLROMCI2 · pith_short_8: KQGUQNB4

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/KQGUQNB4WLROMCI2G2EBXU5ODQ \
  | 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: 540d48343cb2e2e6091a36881bd3ae1c125a8bad1a19208f901ddc85a953d08f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09f358b7b8163ffe93c7824b99c7c8d3ff22457771dd090c05a07f72d65deaf4",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-01-23T15:57:30Z",
    "title_canon_sha256": "b6a475e7f74819aa5274578c3a923fd7346a1391bde24f7e462efab6ba1f5565"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6688",
    "kind": "arxiv",
    "version": 1
  }
}