Pith Number

pith:AIKH4MBS

pith:2013:AIKH4MBSZLNBAVFOS7RJKHCFNY

not attested not anchored not stored refs pending

On a conjecture for the signless Laplacian eigenvalues

Jieshan Yang, Lihua You

arxiv:1306.0093 v1 · 2013-06-01 · 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{AIKH4MBSZLNBAVFOS7RJKHCFNY}

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	2026-05-18T03:21:56.157094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02147e3032cada1054ae97e2951c456e368e5b7a61dc315df52dd86b11a9c8c7

Aliases

arxiv: 1306.0093 · arxiv_version: 1306.0093v1 · doi: 10.48550/arxiv.1306.0093 · pith_short_12: AIKH4MBSZLNB · pith_short_16: AIKH4MBSZLNBAVFO · pith_short_8: AIKH4MBS

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/AIKH4MBSZLNBAVFOS7RJKHCFNY \
  | 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: 02147e3032cada1054ae97e2951c456e368e5b7a61dc315df52dd86b11a9c8c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2afc3dbc4ecc4b8f6c5c7de2bd864d6163801d31d44a19ed5de8d65e651ae98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-06-01T10:37:03Z",
    "title_canon_sha256": "3224c9d5dc5f8c1c6be3c006f1e56b281c85feb4df0ad72de68cfd0d517d3de5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0093",
    "kind": "arxiv",
    "version": 1
  }
}