Pith Number

pith:55P7O6WN

pith:2017:55P7O6WNALVB2AKMGJZGNZDWCR

not attested not anchored not stored refs pending

Subquadratic Algorithms for the Diameter and the Sum of Pairwise Distances in Planar Graphs

Sergio Cabello

arxiv:1702.07815 v2 · 2017-02-25 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{55P7O6WNALVB2AKMGJZGNZDWCR}

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	2026-05-18T00:16:14.695918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef5ff77acd02ea1d014c327266e4761440b63a6c904bff0b69ac6513c5f4415d

Aliases

arxiv: 1702.07815 · arxiv_version: 1702.07815v2 · doi: 10.48550/arxiv.1702.07815 · pith_short_12: 55P7O6WNALVB · pith_short_16: 55P7O6WNALVB2AKM · pith_short_8: 55P7O6WN

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/55P7O6WNALVB2AKMGJZGNZDWCR \
  | 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: ef5ff77acd02ea1d014c327266e4761440b63a6c904bff0b69ac6513c5f4415d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87423592e7b9338b7b67e472cd2fc9311d57390ec76ecc93f8394ecdcce1d437",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-02-25T01:24:03Z",
    "title_canon_sha256": "6d8e845af9941767cb6a7d034a265f05f4e624b3d76921fa1c1fdaad8c164fbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07815",
    "kind": "arxiv",
    "version": 2
  }
}