Pith Number

pith:OLWBFPDH

pith:2013:OLWBFPDHPWHG3YLNWBICZBYPF5

not attested not anchored not stored refs pending

Connectivity for bridge-alterable graph classes

Colin McDiarmid

arxiv:1311.3240 v3 · 2013-11-13 · 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{OLWBFPDHPWHG3YLNWBICZBYPF5}

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	2026-05-18T01:19:48.831250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72ec12bc677d8e6de16db0502c870f2f7243f1135ddabc282ac5751841fec31b

Aliases

arxiv: 1311.3240 · arxiv_version: 1311.3240v3 · doi: 10.48550/arxiv.1311.3240 · pith_short_12: OLWBFPDHPWHG · pith_short_16: OLWBFPDHPWHG3YLN · pith_short_8: OLWBFPDH

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/OLWBFPDHPWHG3YLNWBICZBYPF5 \
  | 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: 72ec12bc677d8e6de16db0502c870f2f7243f1135ddabc282ac5751841fec31b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d393457fcae824777d1c1def0b14bc01fea0898dd1bf11c680b5c7aa4631f7b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-11-13T18:27:00Z",
    "title_canon_sha256": "dd93a6282e8e0b736d15c5ff07ddc3aac240b548934da15d45cab6f4069ff28b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3240",
    "kind": "arxiv",
    "version": 3
  }
}