Pith Number

pith:XPXYN4A4

pith:2012:XPXYN4A4FOVKUUY3WMNUJDV67E

not attested not anchored not stored refs pending

Complete enumeration of small realizable oriented matroids

Hiroyuki Miyata, Komei Fukuda, Sonoko Moriyama

arxiv:1204.0645 v2 · 2012-04-03 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XPXYN4A4FOVKUUY3WMNUJDV67E}

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	2026-05-18T03:44:49.144812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbef86f01c2baaaa531bb31b448ebef9096e7c26c623929c3e7282d290650065

Aliases

arxiv: 1204.0645 · arxiv_version: 1204.0645v2 · doi: 10.48550/arxiv.1204.0645 · pith_short_12: XPXYN4A4FOVK · pith_short_16: XPXYN4A4FOVKUUY3 · pith_short_8: XPXYN4A4

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/XPXYN4A4FOVKUUY3WMNUJDV67E \
  | 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: bbef86f01c2baaaa531bb31b448ebef9096e7c26c623929c3e7282d290650065

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edda1c431fa9da544e3a915eb42abe236a124139e2f3494dd5e353a04f0a95a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-04-03T10:20:59Z",
    "title_canon_sha256": "c87dc87152e2e19c367b4684ec8f7ba372e4ba1046bacb765981e8bf9093741d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0645",
    "kind": "arxiv",
    "version": 2
  }
}