Pith Number

pith:ZI4SFMPT

pith:2014:ZI4SFMPTKPEJ6BGBKE2262BBE3

not attested not anchored not stored refs pending

Containment: A Variation of Cops and Robbers

Danny Crytser, John Mackey, Natasha Komarov

arxiv:1405.3330 v2 · 2014-05-13 · 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{ZI4SFMPTKPEJ6BGBKE2262BBE3}

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	2026-05-17T23:51:09.992229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca3922b1f353c89f04c15135af682126fabe6233d477c733c21aa4de8d71407c

Aliases

arxiv: 1405.3330 · arxiv_version: 1405.3330v2 · doi: 10.48550/arxiv.1405.3330 · pith_short_12: ZI4SFMPTKPEJ · pith_short_16: ZI4SFMPTKPEJ6BGB · pith_short_8: ZI4SFMPT

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/ZI4SFMPTKPEJ6BGBKE2262BBE3 \
  | 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: ca3922b1f353c89f04c15135af682126fabe6233d477c733c21aa4de8d71407c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a88e2da76a4db50ec29e6b8bfba08a43f5e63fd7cc3eddcebe4bec20f620f08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-13T23:57:33Z",
    "title_canon_sha256": "4d06d3bf793353683e38ab1c14141b59bc2609f0df22fc29c2333fc467fc850f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.3330",
    "kind": "arxiv",
    "version": 2
  }
}