Pith Number

pith:4OCXOVIR

pith:2014:4OCXOVIRLB3BTDZX53NWFLOGBX

not attested not anchored not stored refs pending

Data Reductions and Combinatorial Bounds for Improved Approximation Algorithms

Cristina Bazgan, Faisal N. Abu-Khzam, Henning Fernau, Morgan Chopin

arxiv:1409.3742 v1 · 2014-09-12 · 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{4OCXOVIRLB3BTDZX53NWFLOGBX}

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	2026-05-18T02:42:54.723351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3857755115876198f37eedb62adc60df683639644e5ecf6b36a8a80d9cb4f48

Aliases

arxiv: 1409.3742 · arxiv_version: 1409.3742v1 · doi: 10.48550/arxiv.1409.3742 · pith_short_12: 4OCXOVIRLB3B · pith_short_16: 4OCXOVIRLB3BTDZX · pith_short_8: 4OCXOVIR

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/4OCXOVIRLB3BTDZX53NWFLOGBX \
  | 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: e3857755115876198f37eedb62adc60df683639644e5ecf6b36a8a80d9cb4f48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ebd5a7ee9981918c98d5f685515d19ee3884d06b6517d72fc248b69f98bc15d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-09-12T14:14:04Z",
    "title_canon_sha256": "4ea4e7051481060235cf6913e42b2ed95800e57ce0242c03debb0ee559615ee4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3742",
    "kind": "arxiv",
    "version": 1
  }
}