Pith Number

pith:HQM6FEFV

pith:2017:HQM6FEFVL32F7TSPMJWUFH4Y4M

not attested not anchored not stored refs pending

A 2-Approximation for the Height of Maximal Outerplanar Graph Drawings

Philippe Demontigny, Therese Biedl

arxiv:1702.01719 v1 · 2017-02-06 · cs.DS · 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{HQM6FEFVL32F7TSPMJWUFH4Y4M}

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	2026-05-18T00:51:19.760512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c19e290b55ef45fce4f626d429f98e3372a47811efb8745c508b44da2f6686a

Aliases

arxiv: 1702.01719 · arxiv_version: 1702.01719v1 · doi: 10.48550/arxiv.1702.01719 · pith_short_12: HQM6FEFVL32F · pith_short_16: HQM6FEFVL32F7TSP · pith_short_8: HQM6FEFV

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/HQM6FEFVL32F7TSPMJWUFH4Y4M \
  | 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: 3c19e290b55ef45fce4f626d429f98e3372a47811efb8745c508b44da2f6686a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db506cfbb8efc12e2a7500b07ea0dc445c9392ab8828279909d34902ff68f740",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-02-06T17:38:26Z",
    "title_canon_sha256": "07a3dd2c97fef3ef5ff82f5978d01bcb1706fc9e56b29ca637f0b7d150352445"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.01719",
    "kind": "arxiv",
    "version": 1
  }
}