Pith Number

pith:FFDV5QOT

pith:2016:FFDV5QOTE7ZJ2AVNRWSWQKNFFF

not attested not anchored not stored refs pending

On the difference between the Szeged and Wiener index

Alexandre Pinlou, Borut Lu\v{z}ar, Marthe Bonamy, Martin Knor, Riste \v{S}krekovski

arxiv:1602.05184 v1 · 2016-02-16 · 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{FFDV5QOTE7ZJ2AVNRWSWQKNFFF}

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	2026-05-18T00:12:11.627147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29475ec1d327f29d02ad8da56829a5296cc8057dbe7976f4dd52ad50e6c9b0cd

Aliases

arxiv: 1602.05184 · arxiv_version: 1602.05184v1 · doi: 10.48550/arxiv.1602.05184 · pith_short_12: FFDV5QOTE7ZJ · pith_short_16: FFDV5QOTE7ZJ2AVN · pith_short_8: FFDV5QOT

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/FFDV5QOTE7ZJ2AVNRWSWQKNFFF \
  | 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: 29475ec1d327f29d02ad8da56829a5296cc8057dbe7976f4dd52ad50e6c9b0cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53e100ff2cfafb03f2559d429d0fbad9250e60df877457caaa3c81173180c5ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-02-16T20:56:17Z",
    "title_canon_sha256": "725eb0e5fa3d4997516b0bedb8faa6dca89013c03842bdfe6e5efed7a4392f8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.05184",
    "kind": "arxiv",
    "version": 1
  }
}