Pith Number

pith:BSUZZ4LP

pith:2011:BSUZZ4LPKDJHCOSORPUQWTTVIC

not attested not anchored not stored refs pending

Cops and Robbers on Geometric Graphs

Alan Frieze, Andrew Beveridge, Andrzej Dudek, Tobias M\"uller

arxiv:1108.2549 v4 · 2011-08-12 · 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{BSUZZ4LPKDJHCOSORPUQWTTVIC}

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	2026-05-18T04:13:54.951802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ca99cf16f50d2713a4e8be90b4e75409967af6bcb474bcbabfd3c27de99f6c1

Aliases

arxiv: 1108.2549 · arxiv_version: 1108.2549v4 · doi: 10.48550/arxiv.1108.2549 · pith_short_12: BSUZZ4LPKDJH · pith_short_16: BSUZZ4LPKDJHCOSO · pith_short_8: BSUZZ4LP

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/BSUZZ4LPKDJHCOSORPUQWTTVIC \
  | 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: 0ca99cf16f50d2713a4e8be90b4e75409967af6bcb474bcbabfd3c27de99f6c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b797bb105a68a537de2b3537c51f54034d3656ba4273ddac06a8dca1157bfaea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-08-12T02:05:56Z",
    "title_canon_sha256": "4a7bc0260ee0166b715beadc508ce7095377a84b70d6f67175b038b15eaf1ee3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2549",
    "kind": "arxiv",
    "version": 4
  }
}