Pith Number

pith:SGZJD3O7

pith:2019:SGZJD3O7PNWM3T2FGYY6KW43UQ

not attested not anchored not stored refs pending

On Extremal Graphs of Weighted Szeged Index

Boris Furtula, Jan Bok, Nikola Jedli\v{c}kov\'a, Riste \v{S}krekovski

arxiv:1901.04764 v1 · 2019-01-15 · math.CO · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SGZJD3O7PNWM3T2FGYY6KW43UQ}

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	2026-05-17T23:56:21.835461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91b291eddf7b6ccdcf453631e55b9ba407741acb4d0e20fe2b956643ae2242fe

Aliases

arxiv: 1901.04764 · arxiv_version: 1901.04764v1 · doi: 10.48550/arxiv.1901.04764 · pith_short_12: SGZJD3O7PNWM · pith_short_16: SGZJD3O7PNWM3T2F · pith_short_8: SGZJD3O7

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/SGZJD3O7PNWM3T2FGYY6KW43UQ \
  | 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: 91b291eddf7b6ccdcf453631e55b9ba407741acb4d0e20fe2b956643ae2242fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32a2d354018a9ea788a76c3242943655a09677b7f1593434577226d1d59d08f0",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-01-15T11:05:04Z",
    "title_canon_sha256": "b81d2439e5f7797384bd3b630f4540cc1f2ce31a1c0b21010c3a8541e3adbc3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04764",
    "kind": "arxiv",
    "version": 1
  }
}