Pith Number

pith:7RFCAG7V

pith:2010:7RFCAG7VPFU2B42ELAK7E6TISC

not attested not anchored not stored refs pending

The overlap number of a graph

Bill Rosgen, Lorna Stewart

arxiv:1008.2170 v2 · 2010-08-12 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7RFCAG7VPFU2B42ELAK7E6TISC}

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	2026-05-18T04:42:13.433310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4a201bf57969a0f3445815f27a6890a26c457a908027f4e80f045e068a3568

Aliases

arxiv: 1008.2170 · arxiv_version: 1008.2170v2 · doi: 10.48550/arxiv.1008.2170 · pith_short_12: 7RFCAG7VPFU2 · pith_short_16: 7RFCAG7VPFU2B42E · pith_short_8: 7RFCAG7V

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/7RFCAG7VPFU2B42ELAK7E6TISC \
  | 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: fc4a201bf57969a0f3445815f27a6890a26c457a908027f4e80f045e068a3568

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b476daac9e46930e4cc072b89d9719e391dfe15ff42085593c3ebb6817bf3e7a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2010-08-12T17:32:47Z",
    "title_canon_sha256": "d1e33623507666b90093ff83532b2efda2bc30d041519feaa545f32e03a1a7eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2170",
    "kind": "arxiv",
    "version": 2
  }
}