Pith Number

pith:MU5WVQ2Z

pith:2015:MU5WVQ2ZQ2OQJTODR7OBEAJEDB

not attested not anchored not stored refs pending

A characterization of linearizable instances of the quadratic minimum spanning tree problem

Abraham P. Punnen, Ante \'Custi\'c

arxiv:1510.02197 v1 · 2015-10-08 · math.OC · 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{MU5WVQ2ZQ2OQJTODR7OBEAJEDB}

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	2026-05-18T01:30:44.480604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

653b6ac359869d04cdc38fdc120124184e82e71238df1974db023d3086520af0

Aliases

arxiv: 1510.02197 · arxiv_version: 1510.02197v1 · doi: 10.48550/arxiv.1510.02197 · pith_short_12: MU5WVQ2ZQ2OQ · pith_short_16: MU5WVQ2ZQ2OQJTOD · pith_short_8: MU5WVQ2Z

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/MU5WVQ2ZQ2OQJTODR7OBEAJEDB \
  | 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: 653b6ac359869d04cdc38fdc120124184e82e71238df1974db023d3086520af0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cecea45401246e37fb9903a2ecb6ec27ed90dabb619b339f2fac179a2365fa8",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-10-08T04:46:37Z",
    "title_canon_sha256": "07f6fe9042bd4ec8092099506d8fada49ab158a31637d69e248c5027c9ae4641"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02197",
    "kind": "arxiv",
    "version": 1
  }
}