Pith Number

pith:TRAMCLSI

pith:2017:TRAMCLSIE6VT75W5QKVWRKVZXJ

not attested not anchored not stored refs pending

Constant Approximation Algorithms for Guarding Simple Polygons using Vertex Guards

Pritam Bhattacharya, Subir Kumar Ghosh, Sudebkumar Pal

arxiv:1712.05492 v2 · 2017-12-15 · 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{TRAMCLSIE6VT75W5QKVWRKVZXJ}

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

A Constant-Factor Approximation Algorithm for Vertex Guarding a WV-Polygon

Receipt and verification

First computed	2026-05-18T00:18:45.949245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c40c12e4827ab3ff6dd82ab68aab9ba58502dfbfc049242faee56b4c94738e2

Aliases

arxiv: 1712.05492 · arxiv_version: 1712.05492v2 · doi: 10.48550/arxiv.1712.05492 · pith_short_12: TRAMCLSIE6VT · pith_short_16: TRAMCLSIE6VT75W5 · pith_short_8: TRAMCLSI

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/TRAMCLSIE6VT75W5QKVWRKVZXJ \
  | 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: 9c40c12e4827ab3ff6dd82ab68aab9ba58502dfbfc049242faee56b4c94738e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "caab02ef1489daaee4f2a82f588d71bb2a1a312a52db9637240a2d07ad1707e3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-12-15T00:52:13Z",
    "title_canon_sha256": "ab13e070467b4023232d90655a0c7e2f99333e1eb579b582a1241ca87adf6600"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05492",
    "kind": "arxiv",
    "version": 2
  }
}