Pith Number

pith:GYXINTEU

pith:2014:GYXINTEUMPY5N7FPKW7CUUTXZK

not attested not anchored not stored refs pending

There is no square-complementary graph of girth 6

Ratko Darda

arxiv:1403.7670 v1 · 2014-03-29 · 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{GYXINTEUMPY5N7FPKW7CUUTXZK}

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	2026-05-18T02:55:12.716508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

362e86cc9463f1d6fcaf55be2a5277ca96607b70cfa4a5189e72ec3fe146d054

Aliases

arxiv: 1403.7670 · arxiv_version: 1403.7670v1 · doi: 10.48550/arxiv.1403.7670 · pith_short_12: GYXINTEUMPY5 · pith_short_16: GYXINTEUMPY5N7FP · pith_short_8: GYXINTEU

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/GYXINTEUMPY5N7FPKW7CUUTXZK \
  | 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: 362e86cc9463f1d6fcaf55be2a5277ca96607b70cfa4a5189e72ec3fe146d054

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40d9488a658fb109553b60d49ce4feed59603b3f49e8a913e413c0f52f7322c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-03-29T21:22:55Z",
    "title_canon_sha256": "7e96958ef4bc7ff446bc8ba73732cdfa3b832383529d3096e480044bce8441ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.7670",
    "kind": "arxiv",
    "version": 1
  }
}