Pith Number

pith:SK5IJURJ

pith:2014:SK5IJURJLHUVPUYIQANDGAAYDM

not attested not anchored not stored refs pending

Planar Induced Subgraphs of Sparse Graphs

David Eppstein, Glencora Borradaile, Pingan Zhu

arxiv:1408.5939 v2 · 2014-08-25 · cs.CG · cs.DS · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SK5IJURJLHUVPUYIQANDGAAYDM}

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	2026-05-18T01:36:51.631612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92ba84d22959e957d308801a3300181b086459f5745dea565989d4f05814d3ae

Aliases

arxiv: 1408.5939 · arxiv_version: 1408.5939v2 · doi: 10.48550/arxiv.1408.5939 · pith_short_12: SK5IJURJLHUV · pith_short_16: SK5IJURJLHUVPUYI · pith_short_8: SK5IJURJ

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/SK5IJURJLHUVPUYIQANDGAAYDM \
  | 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: 92ba84d22959e957d308801a3300181b086459f5745dea565989d4f05814d3ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2966c2fb3277b01c0c77e3cbe92da64b8bc42409a38e155a589116af0bb4ace8",
    "cross_cats_sorted": [
      "cs.DS",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2014-08-25T22:20:51Z",
    "title_canon_sha256": "fc2f496b7508e6f1514e6244507284a10fb3a135ad961e7f67e37af95d9300b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5939",
    "kind": "arxiv",
    "version": 2
  }
}