Pith Number

pith:SLDLN52G

pith:2017:SLDLN52G54HEYBCKSOBI3EUFYX

not attested not anchored not stored refs pending

Graphs with at most three distance eigenvalues different from $-1$ and $-2$

Lu Lu, Qiongxiang Huang, Xueyi Huang

arxiv:1708.07979 v1 · 2017-08-26 · 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{SLDLN52G54HEYBCKSOBI3EUFYX}

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	2026-05-18T00:36:37.413138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92c6b6f746ef0e4c044a93828d9285c5ff60e20313a78461b62eac0dca88fd22

Aliases

arxiv: 1708.07979 · arxiv_version: 1708.07979v1 · doi: 10.48550/arxiv.1708.07979 · pith_short_12: SLDLN52G54HE · pith_short_16: SLDLN52G54HEYBCK · pith_short_8: SLDLN52G

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/SLDLN52G54HEYBCKSOBI3EUFYX \
  | 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: 92c6b6f746ef0e4c044a93828d9285c5ff60e20313a78461b62eac0dca88fd22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d69a6d2cabc44a107d561111f6208a19890975c7bed1e6ee94d8fcf9cb8d4403",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-08-26T14:42:14Z",
    "title_canon_sha256": "80ce920e7dfa6f1e09de0adc1066b4bf0a905e2761ac8b8c07b855ce4a75f138"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.07979",
    "kind": "arxiv",
    "version": 1
  }
}