Pith Number

pith:QMX36ZBA

pith:2014:QMX36ZBARUZHDYUQ4TX67OWZRE

not attested not anchored not stored refs pending

Walker-Breaker games

Alan Frieze, Lisa Espig, Michael Krivelevich, Wesley Pegden

arxiv:1401.5538 v2 · 2014-01-22 · 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{QMX36ZBARUZHDYUQ4TX67OWZRE}

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	2026-05-18T02:52:25.955392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

832fbf64208d3271e290e4efefbad9891ad822b770850e240d3e154f0cb8fdff

Aliases

arxiv: 1401.5538 · arxiv_version: 1401.5538v2 · doi: 10.48550/arxiv.1401.5538 · pith_short_12: QMX36ZBARUZH · pith_short_16: QMX36ZBARUZHDYUQ · pith_short_8: QMX36ZBA

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/QMX36ZBARUZHDYUQ4TX67OWZRE \
  | 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: 832fbf64208d3271e290e4efefbad9891ad822b770850e240d3e154f0cb8fdff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2997b515d7367da32832e6f1b6c734696c4d519004629d1b1e5e914d03b7d1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-01-22T02:02:42Z",
    "title_canon_sha256": "de0191002a859be13bc01d531ef901f47eb319e01c60dfceca412152d480faf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5538",
    "kind": "arxiv",
    "version": 2
  }
}