Pith Number

pith:ZSQC7CGU

pith:2015:ZSQC7CGU3CHUK4SCEEAALA2EQA

not attested not anchored not stored refs pending

Symmetric Chromatic Polynomial of Trees

Isaac Smith, Peter Tian, Zane Smith

arxiv:1505.01889 v2 · 2015-05-07 · 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{ZSQC7CGU3CHUK4SCEEAALA2EQA}

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	2026-05-18T02:14:16.304510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cca02f88d4d88f4572422100058344803db28d9d9e86ef13adaaea898be7ebfb

Aliases

arxiv: 1505.01889 · arxiv_version: 1505.01889v2 · doi: 10.48550/arxiv.1505.01889 · pith_short_12: ZSQC7CGU3CHU · pith_short_16: ZSQC7CGU3CHUK4SC · pith_short_8: ZSQC7CGU

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/ZSQC7CGU3CHUK4SCEEAALA2EQA \
  | 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: cca02f88d4d88f4572422100058344803db28d9d9e86ef13adaaea898be7ebfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48cebcb73bdc0863898226154659b35bb605494d678cca9142f1e005492f00a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-05-07T23:27:55Z",
    "title_canon_sha256": "b2fa4a4ffbe6cbe39f5514e917665c29cd3be2a8be45fd96d83e82c4abdd6517"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01889",
    "kind": "arxiv",
    "version": 2
  }
}