Pith Number

pith:C5QOFDAZ

pith:2017:C5QOFDAZH33WHER5HJGIJ3CDH4

not attested not anchored not stored refs pending

Uniquely Pressable Graphs: Characterization, Enumeration, and Recognition

Hays W. Whitlatch, Joshua N. Cooper

arxiv:1706.07468 v1 · 2017-06-22 · 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{C5QOFDAZH33WHER5HJGIJ3CDH4}

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	2026-05-18T00:41:49.010452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1760e28c193ef763923d3a4c84ec433f396defee8d933acf24ff899338f51e14

Aliases

arxiv: 1706.07468 · arxiv_version: 1706.07468v1 · doi: 10.48550/arxiv.1706.07468 · pith_short_12: C5QOFDAZH33W · pith_short_16: C5QOFDAZH33WHER5 · pith_short_8: C5QOFDAZ

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/C5QOFDAZH33WHER5HJGIJ3CDH4 \
  | 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: 1760e28c193ef763923d3a4c84ec433f396defee8d933acf24ff899338f51e14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffe770f274f03fddb0f63101c4b705ceaa430ffdc31a8aa4b6e5c44a15dece83",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-06-22T19:31:18Z",
    "title_canon_sha256": "28883dbad3abdc239d9efbcd01d34cbf169e067d6560ff1e9de7e0625a76e14d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.07468",
    "kind": "arxiv",
    "version": 1
  }
}