Pith Number

pith:4R53ICSX

pith:2018:4R53ICSXN6FY4DSYGD6V5FGPTH

not attested not anchored not stored refs pending

The Tutte polynomial via lattice point counting

Alex Fink, Amanda Cameron

arxiv:1802.09859 v1 · 2018-02-27 · 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{4R53ICSXN6FY4DSYGD6V5FGPTH}

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	2026-05-18T00:22:22.004556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e47bb40a576f8b8e0e5830fd5e94cf99f59f1aabb96ab408ee4cb3c0b3615836

Aliases

arxiv: 1802.09859 · arxiv_version: 1802.09859v1 · doi: 10.48550/arxiv.1802.09859 · pith_short_12: 4R53ICSXN6FY · pith_short_16: 4R53ICSXN6FY4DSY · pith_short_8: 4R53ICSX

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/4R53ICSXN6FY4DSYGD6V5FGPTH \
  | 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: e47bb40a576f8b8e0e5830fd5e94cf99f59f1aabb96ab408ee4cb3c0b3615836

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "880bb3531b7529149e29a1b94d6bebadec116304f091c8b48042bcd6ef8765f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-02-27T12:54:55Z",
    "title_canon_sha256": "9e1b6f9eaacec77a351b14b66f2098078ff57a6af02f864b8c8d4c3905d423c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.09859",
    "kind": "arxiv",
    "version": 1
  }
}