Pith Number

pith:D6HTV6IA

pith:2017:D6HTV6IAOLCLQFKOLGTTVXYXO2

not attested not anchored not stored refs pending

A construction for directed in-out subgraphs of optimal size

Asghar Moeini, David Glynn, Michael Haythorpe

arxiv:1702.03075 v2 · 2017-02-10 · 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{D6HTV6IAOLCLQFKOLGTTVXYXO2}

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	2026-05-18T00:17:19.613530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f8f3af90072c4b8154e59a73adf1776a48aecf9634ab0590504b574f406278a

Aliases

arxiv: 1702.03075 · arxiv_version: 1702.03075v2 · doi: 10.48550/arxiv.1702.03075 · pith_short_12: D6HTV6IAOLCL · pith_short_16: D6HTV6IAOLCLQFKO · pith_short_8: D6HTV6IA

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/D6HTV6IAOLCLQFKOLGTTVXYXO2 \
  | 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: 1f8f3af90072c4b8154e59a73adf1776a48aecf9634ab0590504b574f406278a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "746b9af1b4cfd3cbc98b8f2cdcebf19ef95c1fe47638b063f314730ae298f1b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-02-10T06:12:12Z",
    "title_canon_sha256": "2331dafeec5ffe080981c42dc8184258bd107d50c03ef73ae6b2c30e1cb6efc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03075",
    "kind": "arxiv",
    "version": 2
  }
}