Pith Number

pith:ZR3QBINF

pith:2024:ZR3QBINF7TEJBBAJAPRTLW6I3J

not attested not anchored not stored refs pending

The Contiguous Art Gallery Problem is Solvable in Polynomial Time

Casper Moldrup Rysgaard, Jens Kristian Refsgaard Schou, Magnus Christian Ring Merrild, Rolf Svenning

arxiv:2412.13938 v3 · 2024-12-18 · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZR3QBINF7TEJBBAJAPRTLW6I3J}

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.

Cited by

1 paper in Pith

The Contiguous Art Gallery Problem is in {\Theta}(n log n)

Receipt and verification

First computed	2026-07-05T11:27:52.154519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc7700a1a5fcc890840903e335dbc8da527439e0c422e4ce45c0b98743abb5eb

Aliases

arxiv: 2412.13938 · arxiv_version: 2412.13938v3 · doi: 10.48550/arxiv.2412.13938 · pith_short_12: ZR3QBINF7TEJ · pith_short_16: ZR3QBINF7TEJBBAJ · pith_short_8: ZR3QBINF

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/ZR3QBINF7TEJBBAJAPRTLW6I3J \
  | 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: cc7700a1a5fcc890840903e335dbc8da527439e0c422e4ce45c0b98743abb5eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c1683dc387f4f7408ea788270154802a98c3d7bf805acc246de52ab12f8ee36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2024-12-18T15:21:37Z",
    "title_canon_sha256": "06fe4534e75a3101cc4db8fb5900d9f9564aa1cc7f61d5d48a264fb7e398c1f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.13938",
    "kind": "arxiv",
    "version": 3
  }
}