Pith Number

pith:DAN4IRAY

pith:2011:DAN4IRAYE457SV4U4PTVIWIEI3

not attested not anchored not stored refs pending

Approximation Algorithms for Variable-Sized and Generalized Bin Covering

Alexander Souza, Matthias Hellwig

arxiv:1109.3544 v2 · 2011-09-16 · 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{DAN4IRAYE457SV4U4PTVIWIEI3}

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	2026-05-18T04:01:14.517070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

181bc44418273bf95794e3e754590446e12fc049e74657eaa6bb323ed40231d8

Aliases

arxiv: 1109.3544 · arxiv_version: 1109.3544v2 · doi: 10.48550/arxiv.1109.3544 · pith_short_12: DAN4IRAYE457 · pith_short_16: DAN4IRAYE457SV4U · pith_short_8: DAN4IRAY

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/DAN4IRAYE457SV4U4PTVIWIEI3 \
  | 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: 181bc44418273bf95794e3e754590446e12fc049e74657eaa6bb323ed40231d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ef69156b20f8e8faa09bdd6829d6082f6b2de72c2335144b6ad0b2669ac0981",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-09-16T08:03:50Z",
    "title_canon_sha256": "2c031228af7ccdf526a92e5232905640c2952d64fedef01179429410bbc8f37d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3544",
    "kind": "arxiv",
    "version": 2
  }
}