Pith Number

pith:Z3WVLIVW

pith:2021:Z3WVLIVWOFLH43UZAFXWBZ2CO4

not attested not anchored not stored refs pending

Improved Approximation Algorithms for 2-Dimensional Knapsack: Packing into Multiple L-Shapes, Spirals, and More

Andreas Wiese, Arindam Khan, Diego Ram\'irez-Romero, Fabrizio Grandoni, Waldo G\'alvez

arxiv:2103.10406 v1 · 2021-03-18 · cs.CG · 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{Z3WVLIVWOFLH43UZAFXWBZ2CO4}

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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.

Cited by

1 paper in Pith

Near-Tight Approximation Algorithms for Bottleneck Multiple Knapsack Problems

Receipt and verification

First computed	2026-07-05T02:24:26.193958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ceed55a2b671567e6e99016f60e742770bb96fa50bd012a3f566e9d7b474ed86

Aliases

arxiv: 2103.10406 · arxiv_version: 2103.10406v1 · doi: 10.48550/arxiv.2103.10406 · pith_short_12: Z3WVLIVWOFLH · pith_short_16: Z3WVLIVWOFLH43UZ · pith_short_8: Z3WVLIVW

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/Z3WVLIVWOFLH43UZAFXWBZ2CO4 \
  | 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: ceed55a2b671567e6e99016f60e742770bb96fa50bd012a3f566e9d7b474ed86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1957cff0fde3967113d47deed295fc127a0022e5764f9f58ba087709796bc532",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2021-03-18T17:42:20Z",
    "title_canon_sha256": "438910b2375988c407d66aa29f995ea6ca4f0b8af880996dc2e6f7f4c16ab57b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.10406",
    "kind": "arxiv",
    "version": 1
  }
}