Pith Number

pith:S7FCNYRE

pith:2017:S7FCNYREOQKER2SQMFOCE2HP7I

not attested not anchored not stored refs pending

Generation and properties of nut graphs

Jan Goedgebeur, Kris Coolsaet, Patrick W. Fowler

arxiv:1709.04254 v1 · 2017-09-13 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S7FCNYREOQKER2SQMFOCE2HP7I}

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	2026-05-18T00:35:14.882924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97ca26e224741448ea50615c2268effa0f2efffbac92deb495b2d7e9c685aca9

Aliases

arxiv: 1709.04254 · arxiv_version: 1709.04254v1 · doi: 10.48550/arxiv.1709.04254 · pith_short_12: S7FCNYREOQKE · pith_short_16: S7FCNYREOQKER2SQ · pith_short_8: S7FCNYRE

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/S7FCNYREOQKER2SQMFOCE2HP7I \
  | 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: 97ca26e224741448ea50615c2268effa0f2efffbac92deb495b2d7e9c685aca9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7649bc0ed729fdc89015630b2791afc4391bcc0e62051698ac00a6dc9316113",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-13T11:11:07Z",
    "title_canon_sha256": "9e71e5b76da0de50fa8ca8abe162b696169c2b67f213503bcb116dc15cf080d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.04254",
    "kind": "arxiv",
    "version": 1
  }
}