Pith Number

pith:7QFEA7SW

pith:2019:7QFEA7SWPHA77NXRSWKRJSUNY5

not attested not anchored not stored refs pending

Maximizing Ink in Partial Edge Drawings of k-plane Graphs

Fabian Klute, Martin N\"ollenburg, Matthias Hummel, Soeren Nickel

arxiv:1908.08905 v2 · 2019-08-23 · cs.CG · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QFEA7SWPHA77NXRSWKRJSUNY5}

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	2026-07-04T23:59:35.187229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc0a407e5679c1ffb6f1959514ca8dc74eb5093ecf693c9d62c3cc7b2e336b6f

Aliases

arxiv: 1908.08905 · arxiv_version: 1908.08905v2 · doi: 10.48550/arxiv.1908.08905 · pith_short_12: 7QFEA7SWPHA7 · pith_short_16: 7QFEA7SWPHA77NXR · pith_short_8: 7QFEA7SW

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/7QFEA7SWPHA77NXRSWKRJSUNY5 \
  | 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: fc0a407e5679c1ffb6f1959514ca8dc74eb5093ecf693c9d62c3cc7b2e336b6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21c5500aeb237796e8739e2146d0023fcfb3b0891ecfcf22ef1f020ad3d0e75f",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-08-23T17:08:43Z",
    "title_canon_sha256": "b5b260e3f03ba58065a78b5eaea4a6c1bac3bd087854ca525ece7af5e4f0984a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08905",
    "kind": "arxiv",
    "version": 2
  }
}