Pith Number

pith:NNIHJGFU

pith:2011:NNIHJGFUMBOH2PKBLV6S3CWERD

not attested not anchored not stored refs pending

Modular Decomposition and the Reconstruction Conjecture

Nicholas Georgiou, Robert Brignall, Robert J. Waters

arxiv:1112.1509 v2 · 2011-12-07 · 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{NNIHJGFUMBOH2PKBLV6S3CWERD}

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	2026-05-18T04:01:25.739900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b507498b4605c7d3d415d7d2d8ac488f5227d4ae05e5618699cc2679a742ec1

Aliases

arxiv: 1112.1509 · arxiv_version: 1112.1509v2 · doi: 10.48550/arxiv.1112.1509 · pith_short_12: NNIHJGFUMBOH · pith_short_16: NNIHJGFUMBOH2PKB · pith_short_8: NNIHJGFU

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/NNIHJGFUMBOH2PKBLV6S3CWERD \
  | 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: 6b507498b4605c7d3d415d7d2d8ac488f5227d4ae05e5618699cc2679a742ec1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bda90ffadeff871419fb98d91747bd964ac7aacf730676031368681cb53ed64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-12-07T09:55:01Z",
    "title_canon_sha256": "ceb4f25bc1759e88c6be344316622ec9ba71d1461aac173f0f46d92c79e462a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.1509",
    "kind": "arxiv",
    "version": 2
  }
}