Pith Number

pith:7VFWB37M

pith:2013:7VFWB37MY62WNSPBCANRGJR7DB

not attested not anchored not stored refs pending

Bi-Criteria and Approximation Algorithms for Restricted Matchings

Georgios Stamoulis, Monaldo Mastrolilli

arxiv:1311.5481 v1 · 2013-11-21 · 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{7VFWB37MY62WNSPBCANRGJR7DB}

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	2026-05-18T03:06:33.259528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd4b60efecc7b566c9e1101b13263f18613c20dea35d41a8c78502f8f542b2f6

Aliases

arxiv: 1311.5481 · arxiv_version: 1311.5481v1 · doi: 10.48550/arxiv.1311.5481 · pith_short_12: 7VFWB37MY62W · pith_short_16: 7VFWB37MY62WNSPB · pith_short_8: 7VFWB37M

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/7VFWB37MY62WNSPBCANRGJR7DB \
  | 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: fd4b60efecc7b566c9e1101b13263f18613c20dea35d41a8c78502f8f542b2f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de2eeff5cd71aa5b92684c94a5bbc75d6676347fc52b5fbe45cc048a01c8cc1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-11-21T17:07:08Z",
    "title_canon_sha256": "dcfab458890f17a475a8635c7919b84ed659f1766ac76a025ae8e0ba509f9857"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5481",
    "kind": "arxiv",
    "version": 1
  }
}