Pith Number

pith:7QTVUG5C

pith:2017:7QTVUG5CSMHC2VZB3TRDVZQUHJ

not attested not anchored not stored refs pending

On the imaginary parts of chromatic root

David G. Wagner, Jason I. Brown

arxiv:1706.09093 v1 · 2017-06-28 · 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{7QTVUG5CSMHC2VZB3TRDVZQUHJ}

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	2026-05-18T00:41:19.874374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc275a1ba2930e2d5721dce23ae6143a4af304e06acf9dce31746e9843e1f1f7

Aliases

arxiv: 1706.09093 · arxiv_version: 1706.09093v1 · doi: 10.48550/arxiv.1706.09093 · pith_short_12: 7QTVUG5CSMHC · pith_short_16: 7QTVUG5CSMHC2VZB · pith_short_8: 7QTVUG5C

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/7QTVUG5CSMHC2VZB3TRDVZQUHJ \
  | 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: fc275a1ba2930e2d5721dce23ae6143a4af304e06acf9dce31746e9843e1f1f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05979b79f48389606f6fd6c3bcfe90a8470c4870f5d07978f06d339d28f49150",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-06-28T01:15:12Z",
    "title_canon_sha256": "0389e91c103332cb28c1f837a05406fe68b17254d966c4f5573ab43f54d064f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.09093",
    "kind": "arxiv",
    "version": 1
  }
}