Pith Number

pith:NQQ22LJ6

pith:2017:NQQ22LJ64YC3LQ57DL7AAXACNP

not attested not anchored not stored refs pending

On a conjecture of Sokal concerning roots of the independence polynomial

Guus Regts, Han Peters

arxiv:1701.08049 v3 · 2017-01-27 · math.CO · cs.DS · math.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQQ22LJ64YC3LQ57DL7AAXACNP}

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	2026-05-18T00:12:40.826593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c21ad2d3ee605b5c3bf1afe005c026bfc45313c31fda388ecf0e2043bd7a71a

Aliases

arxiv: 1701.08049 · arxiv_version: 1701.08049v3 · doi: 10.48550/arxiv.1701.08049 · pith_short_12: NQQ22LJ64YC3 · pith_short_16: NQQ22LJ64YC3LQ57 · pith_short_8: NQQ22LJ6

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/NQQ22LJ64YC3LQ57DL7AAXACNP \
  | 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: 6c21ad2d3ee605b5c3bf1afe005c026bfc45313c31fda388ecf0e2043bd7a71a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf94b11b08eb8e5560eb0f79f6f243bc5f64f4e7c71382f1ec0124e63a691e85",
    "cross_cats_sorted": [
      "cs.DS",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-01-27T13:37:11Z",
    "title_canon_sha256": "f4f9115bf1c79bb78b472706d95518f7f886dcf80665e1b779bebea84950ceb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.08049",
    "kind": "arxiv",
    "version": 3
  }
}