Pith Number

pith:NAMCLBWI

pith:2015:NAMCLBWI3Z3C6F3BDQQQNSLVLB

not attested not anchored not stored refs pending

10-tough chordal graphs are Hamiltonian

Adam Kabela, Tom\'a\v{s} Kaiser

arxiv:1508.02568 v3 · 2015-08-11 · 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{NAMCLBWI3Z3C6F3BDQQQNSLVLB}

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	2026-05-18T01:11:35.273781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68182586c8de762f17611c2106c9755869f5a5186fbb2028b17e3324e390568c

Aliases

arxiv: 1508.02568 · arxiv_version: 1508.02568v3 · doi: 10.48550/arxiv.1508.02568 · pith_short_12: NAMCLBWI3Z3C · pith_short_16: NAMCLBWI3Z3C6F3B · pith_short_8: NAMCLBWI

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/NAMCLBWI3Z3C6F3BDQQQNSLVLB \
  | 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: 68182586c8de762f17611c2106c9755869f5a5186fbb2028b17e3324e390568c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdf9a7db6cc650e07d680590ceb617855ba33cbcc48f546abb619ed001a8aa57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-08-11T11:50:21Z",
    "title_canon_sha256": "018210e356fe68505ddcb178b99b444da9449c291493bb41cd6384a5c0990b1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02568",
    "kind": "arxiv",
    "version": 3
  }
}