Pith Number

pith:JA6DRDOK

pith:2015:JA6DRDOKWN4D23VL4ZGU3D6PO2

not attested not anchored not stored refs pending

Exploiting Reduction Rules and Data Structures: Local Search for Minimum Vertex Cover in Massive Graphs

Abdul Sattar, Chengqian Li, Ljiljana Brankovic, Vladimir Estivill-Castro, Yi Fan, Zongjie Ma

arxiv:1509.05870 v1 · 2015-09-19 · cs.DS · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JA6DRDOKWN4D23VL4ZGU3D6PO2}

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	2026-05-18T01:32:36.479099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

483c388dcab3783d6eabe64d4d8fcf76a045c874efafd4283d1119d67eee2731

Aliases

arxiv: 1509.05870 · arxiv_version: 1509.05870v1 · doi: 10.48550/arxiv.1509.05870 · pith_short_12: JA6DRDOKWN4D · pith_short_16: JA6DRDOKWN4D23VL · pith_short_8: JA6DRDOK

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/JA6DRDOKWN4D23VL4ZGU3D6PO2 \
  | 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: 483c388dcab3783d6eabe64d4d8fcf76a045c874efafd4283d1119d67eee2731

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d20cc6f914b3a43fb0e1e8f66f995de3ee16e2c267536cd6984197fff55f9807",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-09-19T10:48:31Z",
    "title_canon_sha256": "3d5229672e111f4315d94c4d6f044d6be058a26932aac758acd52e990eb53760"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05870",
    "kind": "arxiv",
    "version": 1
  }
}