Pith Number

pith:XAXRCEJD

pith:2013:XAXRCEJDEDR33S4DKATBYAWPTM

not attested not anchored not stored refs pending

On the Geometric Ramsey Number of Outerplanar Graphs

Josef Cibulka, Marek Kr\v{c}\'al, Pavel Valtr, Pu Gao, Tom\'a\v{s} Valla

arxiv:1310.7004 v3 · 2013-10-25 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XAXRCEJDEDR33S4DKATBYAWPTM}

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	2026-05-18T01:33:24.563994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b82f11112320e3bdcb8350261c02cf9b37becfac34bb8681f44ed9311a417449

Aliases

arxiv: 1310.7004 · arxiv_version: 1310.7004v3 · doi: 10.48550/arxiv.1310.7004 · pith_short_12: XAXRCEJDEDR3 · pith_short_16: XAXRCEJDEDR33S4D · pith_short_8: XAXRCEJD

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/XAXRCEJDEDR33S4DKATBYAWPTM \
  | 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: b82f11112320e3bdcb8350261c02cf9b37becfac34bb8681f44ed9311a417449

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa935865aa730f4bb81b73dcfe9920ec25294045c04955fe74c6a64ebcaf5279",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-10-25T19:17:09Z",
    "title_canon_sha256": "983194c3b4e7b7bcead3375f623fcf253e7a07b731ab7ccf4b439bdd6db34ca9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.7004",
    "kind": "arxiv",
    "version": 3
  }
}