Pith Number

pith:J3S26PKG

pith:2018:J3S26PKGL25TW546F4RHTEV2QF

not attested not anchored not stored refs pending

Graphs determined by signless Laplacian spectra

Afshin Behmaram, Ali Zeydi Abdian, Gholam Hossein Fath-Tabar

arxiv:1806.10004 v1 · 2018-06-26 · 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{J3S26PKGL25TW546F4RHTEV2QF}

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	2026-05-18T00:12:20.220155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ee5af3d465ebb3b779e2f227992ba81531b10a40867397c7285f6bb38ce03f1

Aliases

arxiv: 1806.10004 · arxiv_version: 1806.10004v1 · doi: 10.48550/arxiv.1806.10004 · pith_short_12: J3S26PKGL25T · pith_short_16: J3S26PKGL25TW546 · pith_short_8: J3S26PKG

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/J3S26PKGL25TW546F4RHTEV2QF \
  | 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: 4ee5af3d465ebb3b779e2f227992ba81531b10a40867397c7285f6bb38ce03f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b5abcb37d708cd0ad57cbdebacb03826aedb44741ff61f99e504f8eb7fe2033",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-06-26T14:51:12Z",
    "title_canon_sha256": "e9932cc3a935530844ed4b1281fea04844d5f017cf6f755490a96ec3271b483e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10004",
    "kind": "arxiv",
    "version": 1
  }
}