Pith Number

pith:UUSYRKKL

pith:2016:UUSYRKKL253FUGKBFEN5BKWSIP

not attested not anchored not stored refs pending

Distance and distance signless Laplacian spread of connected graphs

Guanglong Yu, Lihua You, Liyong Ren

arxiv:1607.00473 v1 · 2016-07-02 · 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{UUSYRKKL253FUGKBFEN5BKWSIP}

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	2026-05-18T01:11:37.000103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a52588a94bd7765a1941291bd0aad243db7957bc99bfc539d5ca8e41e9c06f12

Aliases

arxiv: 1607.00473 · arxiv_version: 1607.00473v1 · doi: 10.48550/arxiv.1607.00473 · pith_short_12: UUSYRKKL253F · pith_short_16: UUSYRKKL253FUGKB · pith_short_8: UUSYRKKL

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/UUSYRKKL253FUGKBFEN5BKWSIP \
  | 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: a52588a94bd7765a1941291bd0aad243db7957bc99bfc539d5ca8e41e9c06f12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d707fb73184d24d778da957ca832c06007861dbb0c88ac3c802c2e90c1fefc01",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-07-02T07:32:11Z",
    "title_canon_sha256": "a49e21e285461394413bb4f833486288066d568b8caf0f4e5235cf8619808d49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.00473",
    "kind": "arxiv",
    "version": 1
  }
}