Pith Number

pith:QJ3BCDTH

pith:2009:QJ3BCDTHXQ4C5PW4JPO75DJEE6

not attested not anchored not stored refs pending

The Stackelberg Minimum Spanning Tree Game on Planar and Bounded-Treewidth Graphs

Erik D. Demaine, Gwena\"el Joret, Ilan Newman, Jean Cardinal, Oren Weimann, Samuel Fiorini

arxiv:0909.3221 v2 · 2009-09-17 · cs.GT · cs.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{QJ3BCDTHXQ4C5PW4JPO75DJEE6}

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	2026-05-18T03:25:06.370880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8276110e67bc382ebedc4bddfe8d2427bea5460d5336f1a72cb84c7ed5ad7767

Aliases

arxiv: 0909.3221 · arxiv_version: 0909.3221v2 · doi: 10.48550/arxiv.0909.3221 · pith_short_12: QJ3BCDTHXQ4C · pith_short_16: QJ3BCDTHXQ4C5PW4 · pith_short_8: QJ3BCDTH

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/QJ3BCDTHXQ4C5PW4JPO75DJEE6 \
  | 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: 8276110e67bc382ebedc4bddfe8d2427bea5460d5336f1a72cb84c7ed5ad7767

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2de1fa8849d1abb994b929372f726a12ad30b26baa20f57365d68df07a2ece91",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2009-09-17T13:52:46Z",
    "title_canon_sha256": "48842de19da930b86897c718618968c4a986bd0ecb09ed6894f3edb290e384e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3221",
    "kind": "arxiv",
    "version": 2
  }
}