Pith Number

pith:MJU5SF3K

pith:2017:MJU5SF3K4YHUPAODSV5BPANLBB

not attested not anchored not stored refs pending

Maximum-Area Quadrilateral in a Convex Polygon, Revisited

Ali Mohades, Ivor van der Hoog, J\'er\^ome Urhausen, Maarten L\"offler, Vahideh Keikha

arxiv:1708.00681 v3 · 2017-08-02 · 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{MJU5SF3K4YHUPAODSV5BPANLBB}

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	2026-05-18T00:26:54.651887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6269d9176ae60f4781c3957a1781ab084bd56494219fd099457ec896315cc845

Aliases

arxiv: 1708.00681 · arxiv_version: 1708.00681v3 · doi: 10.48550/arxiv.1708.00681 · pith_short_12: MJU5SF3K4YHU · pith_short_16: MJU5SF3K4YHUPAOD · pith_short_8: MJU5SF3K

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/MJU5SF3K4YHUPAODSV5BPANLBB \
  | 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: 6269d9176ae60f4781c3957a1781ab084bd56494219fd099457ec896315cc845

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bb3f0fc9bbc026e58f170c7e4bbbba5bcb1770b64287980c5f00ebd9848e537",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-08-02T10:17:37Z",
    "title_canon_sha256": "77868aff609229092810f51e2aadf8c59290e77e274ee3af0e5c8c95573e4742"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.00681",
    "kind": "arxiv",
    "version": 3
  }
}