Pith Number

pith:SDRQCBG4

pith:2014:SDRQCBG4P2JOFESULYPGM2LQGK

not attested not anchored not stored refs pending

Finding Largest Rectangles in Convex Polygons

Christian Knauer, Lena Schlipf, Otfried Cheong, Sergio Cabello

arxiv:1405.1223 v2 · 2014-05-06 · 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{SDRQCBG4P2JOFESULYPGM2LQGK}

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	2026-05-18T02:41:01.690849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90e30104dc7e92e292545e1e6669703287b26b8455bef299b90da087bb2ff884

Aliases

arxiv: 1405.1223 · arxiv_version: 1405.1223v2 · doi: 10.48550/arxiv.1405.1223 · pith_short_12: SDRQCBG4P2JO · pith_short_16: SDRQCBG4P2JOFESU · pith_short_8: SDRQCBG4

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/SDRQCBG4P2JOFESULYPGM2LQGK \
  | 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: 90e30104dc7e92e292545e1e6669703287b26b8455bef299b90da087bb2ff884

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "667a46aca24728a6e38692ab5dbf0ae3e140d49d16cfe0f202e9d8ed923e217f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2014-05-06T10:51:09Z",
    "title_canon_sha256": "bea4af43e5af5d2767aaf8b70c25d5a2a5414efb34e12593f5f863a4180553eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.1223",
    "kind": "arxiv",
    "version": 2
  }
}