Pith Number

pith:LV7RZYNE

pith:2017:LV7RZYNEU2QX4YAMTACN62OFAE

not attested not anchored not stored refs pending

Not Conway's 99-Graph Problem

Ivo Fagundes David de Olivera, Sa'ar Zehavi

arxiv:1707.08047 v2 · 2017-07-25 · 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{LV7RZYNEU2QX4YAMTACN62OFAE}

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	2026-05-18T00:39:23.688491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d7f1ce1a4a6a17e600c9804df69c50131860cf4bb3bffb88049b3a386036a70

Aliases

arxiv: 1707.08047 · arxiv_version: 1707.08047v2 · doi: 10.48550/arxiv.1707.08047 · pith_short_12: LV7RZYNEU2QX · pith_short_16: LV7RZYNEU2QX4YAM · pith_short_8: LV7RZYNE

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/LV7RZYNEU2QX4YAMTACN62OFAE \
  | 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: 5d7f1ce1a4a6a17e600c9804df69c50131860cf4bb3bffb88049b3a386036a70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d65eb14a6e1d3f9f453aff65f04e45dd76912f61f9a8063454cd1fad80c649f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-25T15:31:52Z",
    "title_canon_sha256": "fc65f4fa555267ca47e3e691b03e5dbdea129721e83507936299b9472884c569"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08047",
    "kind": "arxiv",
    "version": 2
  }
}