Pith Number

pith:F234C6FL

pith:2019:F234C6FL2ALVBT2XQ4OR4TZ3UK

not attested not anchored not stored refs pending

An Optimization-Based Sum-of-Squares Approach to Vizing's Conjecture

Angelika Wiegele, Daniel Krenn, Elisabeth Gaar, Susan Margulies

arxiv:1901.10288 v3 · 2019-01-29 · math.CO · cs.SC · math.AC · math.AG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F234C6FL2ALVBT2XQ4OR4TZ3UK}

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	2026-05-17T23:47:02.040768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2eb7c178abd01750cf57871d1e4f3ba2af19f1f708cf4162dffcc92d28a6e514

Aliases

arxiv: 1901.10288 · arxiv_version: 1901.10288v3 · doi: 10.48550/arxiv.1901.10288 · pith_short_12: F234C6FL2ALV · pith_short_16: F234C6FL2ALVBT2X · pith_short_8: F234C6FL

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/F234C6FL2ALVBT2XQ4OR4TZ3UK \
  | 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: 2eb7c178abd01750cf57871d1e4f3ba2af19f1f708cf4162dffcc92d28a6e514

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08bcda20730693d555f08ffe2c4fdba19c7801fc6cb774109c09bf10d81e5c2f",
    "cross_cats_sorted": [
      "cs.SC",
      "math.AC",
      "math.AG",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-01-29T13:52:23Z",
    "title_canon_sha256": "dc7ac15adb840cd926abe3a1936982190b7009dc84d7d069c88c3611c9a79432"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10288",
    "kind": "arxiv",
    "version": 3
  }
}