Pith Number

pith:KGQH2SMR

pith:2018:KGQH2SMR3WZQYMZBZWTUAFEM4M

not attested not anchored not stored refs pending

Linear programming based approximation for unweighted induced matchings --- breaking the $\Delta$ barrier

Dieter Rautenbach, Julien Baste, Maximilian F\"urst

arxiv:1812.05930 v1 · 2018-12-14 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KGQH2SMR3WZQYMZBZWTUAFEM4M}

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	2026-05-17T23:58:17.773640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51a07d4991ddb30c3321cda740148ce3170cecd37364f160f7b50bb08d3f4c91

Aliases

arxiv: 1812.05930 · arxiv_version: 1812.05930v1 · doi: 10.48550/arxiv.1812.05930 · pith_short_12: KGQH2SMR3WZQ · pith_short_16: KGQH2SMR3WZQYMZB · pith_short_8: KGQH2SMR

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/KGQH2SMR3WZQYMZBZWTUAFEM4M \
  | 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: 51a07d4991ddb30c3321cda740148ce3170cecd37364f160f7b50bb08d3f4c91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fb91f7375564391a1891ec080b6cf6c673d9ec29506ecf13e4782c167d718d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-12-14T13:48:25Z",
    "title_canon_sha256": "2692ddad8acbe9f47fb1e9b669f1fd955257491eead3ad108cd7296d0c6d7434"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05930",
    "kind": "arxiv",
    "version": 1
  }
}