Pith Number

pith:4JF35MXU

pith:2009:4JF35MXUISZJNOVJAG7AEKVQG7

not attested not anchored not stored refs pending

Betweenness Parameterized Above Tight Lower Bound

Anders Yeo, Eun Jung Kim, Gregory Gutin, Matthias Mnich

arxiv:0907.5427 v3 · 2009-07-30 · cs.DS · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4JF35MXUISZJNOVJAG7AEKVQG7}

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	2026-05-18T03:20:19.183856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e24bbeb2f444b296baa901be022ab037de0d7c8b5b4470e295904cabcdcb801d

Aliases

arxiv: 0907.5427 · arxiv_version: 0907.5427v3 · doi: 10.48550/arxiv.0907.5427 · pith_short_12: 4JF35MXUISZJ · pith_short_16: 4JF35MXUISZJNOVJ · pith_short_8: 4JF35MXU

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/4JF35MXUISZJNOVJAG7AEKVQG7 \
  | 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: e24bbeb2f444b296baa901be022ab037de0d7c8b5b4470e295904cabcdcb801d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9f098a11c5963ddfba14405ea5e00fc094236da80fb71ea5871377b0b6fbdd0",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2009-07-30T21:26:12Z",
    "title_canon_sha256": "3faf52512505672968fec047280c2be825ddfcdaa6c24f3d48494abb4add48b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.5427",
    "kind": "arxiv",
    "version": 3
  }
}