Pith Number

pith:7P4SQMSH

pith:2017:7P4SQMSHDAXPDDWXB6P2TK7JDF

not attested not anchored not stored refs pending

The Tutte q-Polynomial

Guus Bollen, Henry Crapo, Relinde Jurrius

arxiv:1707.03459 v1 · 2017-07-11 · 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{7P4SQMSHDAXPDDWXB6P2TK7JDF}

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	2026-05-18T00:40:25.961768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbf9283247182ef18ed70f9fa9abe91978186a59a22c23cbd2c082900949167a

Aliases

arxiv: 1707.03459 · arxiv_version: 1707.03459v1 · doi: 10.48550/arxiv.1707.03459 · pith_short_12: 7P4SQMSHDAXP · pith_short_16: 7P4SQMSHDAXPDDWX · pith_short_8: 7P4SQMSH

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/7P4SQMSHDAXPDDWXB6P2TK7JDF \
  | 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: fbf9283247182ef18ed70f9fa9abe91978186a59a22c23cbd2c082900949167a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c9308cd6b4c6b082a33f5926d06bcf517d7e7b070a254e052b57c114f4ff2bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-11T20:54:00Z",
    "title_canon_sha256": "c4557f91f895217b0315250cbed0cb60941cf28f980f279428da4bb7e5fdcc86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03459",
    "kind": "arxiv",
    "version": 1
  }
}