Pith Number

pith:RU6NE67A

pith:2017:RU6NE67APEBZFU3ZMFI7SM2NOV

not attested not anchored not stored refs pending

Haj\'os-like theorem for signed graphs

Yingli Kang

arxiv:1702.08232 v1 · 2017-02-27 · 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{RU6NE67APEBZFU3ZMFI7SM2NOV}

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	2026-05-18T00:49:55.513373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d3cd27be0790392d3796151f9334d757215fd754eecdad76beef517985a2806

Aliases

arxiv: 1702.08232 · arxiv_version: 1702.08232v1 · doi: 10.48550/arxiv.1702.08232 · pith_short_12: RU6NE67APEBZ · pith_short_16: RU6NE67APEBZFU3Z · pith_short_8: RU6NE67A

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/RU6NE67APEBZFU3ZMFI7SM2NOV \
  | 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: 8d3cd27be0790392d3796151f9334d757215fd754eecdad76beef517985a2806

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "118d4648f960e5ca6a7dfcd5c6d75ca76bd477a1d32332e99c2b952f8d1bf067",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-02-27T11:12:00Z",
    "title_canon_sha256": "c2f4887cb40dc4fe6d9935f8a8213a5e18fc0663789052ff8a8529f81b0be8b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08232",
    "kind": "arxiv",
    "version": 1
  }
}