Pith Number

pith:JLFFZ3TB

pith:2014:JLFFZ3TBQZYMX2F2SLEODCNKQ6

not attested not anchored not stored refs pending

A spectral characterization of strongly distance-regular graphs with diameter four

M.A. Fiol

arxiv:1407.1392 v1 · 2014-07-05 · 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{JLFFZ3TBQZYMX2F2SLEODCNKQ6}

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	2026-05-18T02:48:16.693390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4aca5cee618670cbe8ba92c8e189aa8783eda13bb0ae3bef34f88e4796e78c9c

Aliases

arxiv: 1407.1392 · arxiv_version: 1407.1392v1 · doi: 10.48550/arxiv.1407.1392 · pith_short_12: JLFFZ3TBQZYM · pith_short_16: JLFFZ3TBQZYMX2F2 · pith_short_8: JLFFZ3TB

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/JLFFZ3TBQZYMX2F2SLEODCNKQ6 \
  | 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: 4aca5cee618670cbe8ba92c8e189aa8783eda13bb0ae3bef34f88e4796e78c9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28a8f9bdaa3c2ed65e962e0c231b0daace9f261d5fe26a1fa937a06d36153610",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-07-05T11:18:14Z",
    "title_canon_sha256": "7017c6c5f0fda67c416cff2a4eee53dc6745a39f9d51cb310367e38f743839d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1392",
    "kind": "arxiv",
    "version": 1
  }
}