Pith Number

pith:7PZJ622L

pith:2016:7PZJ622LYSDJRBOQKW46YSLJNR

not attested not anchored not stored refs pending

Cops and Robbers on Intersection Graphs

Jan Kratochv\'il, Pavel Klav\'ik, Przemys{\l}aw Gordinowicz, Tom\'a\v{s} Gaven\v{c}iak, V\'it Jel\'inek

arxiv:1607.08058 v1 · 2016-07-27 · 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{7PZJ622LYSDJRBOQKW46YSLJNR}

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	2026-05-17T23:46:11.419126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbf29f6b4bc4869885d055b9ec49696c5b4c0ecc3ee8cb39b6091f6ee3de8f90

Aliases

arxiv: 1607.08058 · arxiv_version: 1607.08058v1 · doi: 10.48550/arxiv.1607.08058 · pith_short_12: 7PZJ622LYSDJ · pith_short_16: 7PZJ622LYSDJRBOQ · pith_short_8: 7PZJ622L

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/7PZJ622LYSDJRBOQKW46YSLJNR \
  | 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: fbf29f6b4bc4869885d055b9ec49696c5b4c0ecc3ee8cb39b6091f6ee3de8f90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f635c018db3e3b40b9693eac48315a17b2cae42656fbe445389da16c8e55bdb2",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-07-27T12:15:30Z",
    "title_canon_sha256": "97aa8839eb9587e00d3cfdd7a78320d06b83e065c7d42374fb58024c3ffba7af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.08058",
    "kind": "arxiv",
    "version": 1
  }
}