Pith Number

pith:ERAO5WFU

pith:2017:ERAO5WFUOK3BLNA57ON72PKFSA

not attested not anchored not stored refs pending

NodeTrix Planarity Testing with Small Clusters

Alessandra Tappini, Emilio Di Giacomo, Giuseppe Liotta, Ignaz Rutter, Maurizio Patrignani

arxiv:1708.09281 v3 · 2017-08-30 · 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{ERAO5WFUOK3BLNA57ON72PKFSA}

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	2026-05-17T23:48:58.091254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2440eed8b472b615b41dfb9bfd3d45902d54bc7b6f099f393fdc2d0a5da31a61

Aliases

arxiv: 1708.09281 · arxiv_version: 1708.09281v3 · doi: 10.48550/arxiv.1708.09281 · pith_short_12: ERAO5WFUOK3B · pith_short_16: ERAO5WFUOK3BLNA5 · pith_short_8: ERAO5WFU

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/ERAO5WFUOK3BLNA57ON72PKFSA \
  | 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: 2440eed8b472b615b41dfb9bfd3d45902d54bc7b6f099f393fdc2d0a5da31a61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e47db8073d1e4fd040521ca71ea830e117c9cec0476c5487754c037b107baea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-08-30T14:03:27Z",
    "title_canon_sha256": "2d1aae119cc79ca56c0cdd4a568031a98d3d54fffcea3b04f73251b247184d00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09281",
    "kind": "arxiv",
    "version": 3
  }
}