Pith Number

pith:WVFCHQIN

pith:2012:WVFCHQINN2DSILXM6AY7TPGRZW

not attested not anchored not stored refs pending

2-connecting Outerplanar Graphs without Blowing Up the Pathwidth

Deepak Rajendraprasad, Jasine Babu, L. Sunil Chandran, Manu Basavaraju

arxiv:1212.6382 v3 · 2012-12-27 · cs.DM · 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{WVFCHQINN2DSILXM6AY7TPGRZW}

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	2026-05-18T03:03:32.453730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b54a23c10d6e87242eecf031f9bcd1cdacae0f7dd92e6ef93f00e3b87bac5ee5

Aliases

arxiv: 1212.6382 · arxiv_version: 1212.6382v3 · doi: 10.48550/arxiv.1212.6382 · pith_short_12: WVFCHQINN2DS · pith_short_16: WVFCHQINN2DSILXM · pith_short_8: WVFCHQIN

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/WVFCHQINN2DSILXM6AY7TPGRZW \
  | 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: b54a23c10d6e87242eecf031f9bcd1cdacae0f7dd92e6ef93f00e3b87bac5ee5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7117ce98e10dd8081be2ff8379829562d75cb78abf439572e8d9ba6cdd1bf963",
    "cross_cats_sorted": [
      "cs.DS",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-12-27T15:09:02Z",
    "title_canon_sha256": "4ae4c93846cf5d7e7c244459f8da2273b77ad3945d161282b26c8fea558d9c3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.6382",
    "kind": "arxiv",
    "version": 3
  }
}