Pith Number

pith:PAEEKLVI

pith:2013:PAEEKLVIVECJGLQ2DZBFNQSKUJ

not attested not anchored not stored refs pending

A polynomial-time approximation scheme for Euclidean Steiner forest

Claire Mathieu, Glencora Borradaile, Philip Klein

arxiv:1302.7270 v2 · 2013-02-28 · cs.CG · 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{PAEEKLVIVECJGLQ2DZBFNQSKUJ}

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	2026-05-18T02:58:22.032052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7808452ea8a904932e1a1e4256c24aa264b0174a64b8a258dc98a65d99b25ddc

Aliases

arxiv: 1302.7270 · arxiv_version: 1302.7270v2 · doi: 10.48550/arxiv.1302.7270 · pith_short_12: PAEEKLVIVECJ · pith_short_16: PAEEKLVIVECJGLQ2 · pith_short_8: PAEEKLVI

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/PAEEKLVIVECJGLQ2DZBFNQSKUJ \
  | 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: 7808452ea8a904932e1a1e4256c24aa264b0174a64b8a258dc98a65d99b25ddc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1663bfa86c16638e5363b710154756537326dba2478e2213f7c69edd8726c526",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-02-28T18:08:25Z",
    "title_canon_sha256": "58d226901c3c56fecf9f34b0bfd816f58bd8d03abbf8ab6155864ba4e0d41d33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.7270",
    "kind": "arxiv",
    "version": 2
  }
}