Pith Number

pith:QCVRIAXT

pith:2013:QCVRIAXT3HQQKE6EIYERSPYQKR

not attested not anchored not stored refs pending

Cops vs. Gambler

Natasha Komarov, Peter Winkler

arxiv:1308.4715 v1 · 2013-08-21 · 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{QCVRIAXT3HQQKE6EIYERSPYQKR}

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	2026-05-18T03:15:20.156820Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80ab1402f3d9e10513c44609193f10547a51b9fa8799a7fdf728f4f068c860cd

Aliases

arxiv: 1308.4715 · arxiv_version: 1308.4715v1 · doi: 10.48550/arxiv.1308.4715 · pith_short_12: QCVRIAXT3HQQ · pith_short_16: QCVRIAXT3HQQKE6E · pith_short_8: QCVRIAXT

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/QCVRIAXT3HQQKE6EIYERSPYQKR \
  | 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: 80ab1402f3d9e10513c44609193f10547a51b9fa8799a7fdf728f4f068c860cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "756c6dde9df6e9c8fd12f0f21b584be77b03aedce36f533681dff202a50c50ca",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-08-21T21:02:29Z",
    "title_canon_sha256": "98999c23b3cf38b211340a71098030a23a9ed25b1b9c8c16f59a4063ad2de141"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4715",
    "kind": "arxiv",
    "version": 1
  }
}