Pith Number

pith:DOT2RI66

pith:2017:DOT2RI66UFTAR4E6CCM6G44WMN

not attested not anchored not stored refs pending

Whitney's Theorem for 2-Regular Planar Digraphs

Bojan Mohar, Dan Archdeacon, Matt DeVos, Stefan Hannie

arxiv:1706.02914 v1 · 2017-06-09 · 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{DOT2RI66UFTAR4E6CCM6G44WMN}

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	2026-05-18T00:42:40.596928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ba7a8a3dea16608f09e1099e37396636d07f00ebc96e0a90e86f31b9507f555

Aliases

arxiv: 1706.02914 · arxiv_version: 1706.02914v1 · doi: 10.48550/arxiv.1706.02914 · pith_short_12: DOT2RI66UFTA · pith_short_16: DOT2RI66UFTAR4E6 · pith_short_8: DOT2RI66

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/DOT2RI66UFTAR4E6CCM6G44WMN \
  | 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: 1ba7a8a3dea16608f09e1099e37396636d07f00ebc96e0a90e86f31b9507f555

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e52357d55d7bc633670642c88e3ed6b496055024645b37c0179247b0398b216",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-06-09T12:12:24Z",
    "title_canon_sha256": "714ddf759de0ea4cf8b48f882033a8ece74659a08dba9b8b7addda0e48bfa4b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02914",
    "kind": "arxiv",
    "version": 1
  }
}