Pith Number

pith:4ZYR4JQ5

pith:2020:4ZYR4JQ55KAOYRHHQAJTN6LT2X

not attested not anchored not stored refs pending

The Game of Cops and Eternal Robbers

Anthony Bonato, Fionn Mc Inerney, Melissa Huggan, Trent Marbach

arxiv:2003.03791 v2 · 2020-03-08 · cs.DM · 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{4ZYR4JQ55KAOYRHHQAJTN6LT2X}

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	2026-07-05T00:47:03.241512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6711e261dea80ec44e7801336f973d5f5e9066c0640a7929827a8b5421923c5

Aliases

arxiv: 2003.03791 · arxiv_version: 2003.03791v2 · doi: 10.48550/arxiv.2003.03791 · pith_short_12: 4ZYR4JQ55KAO · pith_short_16: 4ZYR4JQ55KAOYRHH · pith_short_8: 4ZYR4JQ5

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/4ZYR4JQ55KAOYRHHQAJTN6LT2X \
  | 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: e6711e261dea80ec44e7801336f973d5f5e9066c0640a7929827a8b5421923c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "133cbdd8655a6b5cb0ebd524367ead45bde8ca13700225decaa6d97f31bd2f3b",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2020-03-08T15:04:00Z",
    "title_canon_sha256": "85094d1794b5176386a08f3ef69803cd124f15cd5bbb0d1b36a051c5fbe76a0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.03791",
    "kind": "arxiv",
    "version": 2
  }
}