Pith Number

pith:RIJAI2ZC

pith:2017:RIJAI2ZCQFPB2IBE4LVFOPHABV

not attested not anchored not stored refs pending

The Cop Number of the One-Cop-Moves Game on Planar Graphs

Boting Yang, Ziyuan Gao

arxiv:1705.11184 v3 · 2017-05-31 · 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{RIJAI2ZCQFPB2IBE4LVFOPHABV}

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	2026-05-18T00:13:47.946425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a12046b22815e1d2024e2ea573ce00d5c5168c266b417a555080182d2da4465

Aliases

arxiv: 1705.11184 · arxiv_version: 1705.11184v3 · doi: 10.48550/arxiv.1705.11184 · pith_short_12: RIJAI2ZCQFPB · pith_short_16: RIJAI2ZCQFPB2IBE · pith_short_8: RIJAI2ZC

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/RIJAI2ZCQFPB2IBE4LVFOPHABV \
  | 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: 8a12046b22815e1d2024e2ea573ce00d5c5168c266b417a555080182d2da4465

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e184cd39f4d526574b7acf633b51cda996d50b298dc141e49cde817d22c0d94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-05-31T17:25:44Z",
    "title_canon_sha256": "0aa9721c62ae36f44efd3943f1aa52e1ca25e23d3fc940e56274cffaae954b92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.11184",
    "kind": "arxiv",
    "version": 3
  }
}