Pith Number

pith:4KIGCFAK

pith:2013:4KIGCFAKJ5YXCRIV5MN7ABTQQ7

not attested not anchored not stored refs pending

A Discovery Algorithm for Directed Cyclic Graphs

Thomas S. Richardson

arxiv:1302.3599 v1 · 2013-02-13 · 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{4KIGCFAKJ5YXCRIV5MN7ABTQQ7}

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.

Cited by

1 paper in Pith

Characterizing and Identifying Separable Graphical Models

Receipt and verification

First computed	2026-07-05T01:45:18.093263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e29061140a4f71714515eb1bf0067087cb0a3fa0f6c288abc7d9141d3865b3f9

Aliases

arxiv: 1302.3599 · arxiv_version: 1302.3599v1 · doi: 10.48550/arxiv.1302.3599 · pith_short_12: 4KIGCFAKJ5YX · pith_short_16: 4KIGCFAKJ5YXCRIV · pith_short_8: 4KIGCFAK

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/4KIGCFAKJ5YXCRIV5MN7ABTQQ7 \
  | 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: e29061140a4f71714515eb1bf0067087cb0a3fa0f6c288abc7d9141d3865b3f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07d798a195222cf728b29bb02254294553217bbf05f92f5ac043fa82b4b34fb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-02-13T14:16:12Z",
    "title_canon_sha256": "11ce42fc2eba416d79ce18d6d9f427e393753b030859c86b10215a736e82b0bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3599",
    "kind": "arxiv",
    "version": 1
  }
}