Pith Number

pith:RWE6ID5L

pith:2014:RWE6ID5LKOEWAOKS7NBIVS5BRM

not attested not anchored not stored refs pending

Approximability of the robust representatives selection problem

Adam Kasperski, Adam Kurpisz, Pawel Zielinski

arxiv:1405.5381 v2 · 2014-05-21 · 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{RWE6ID5LKOEWAOKS7NBIVS5BRM}

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	2026-05-18T02:37:44.531278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d89e40fab5389603952fb428acba18b3e0115a9b1d16192387b6630dea781f4

Aliases

arxiv: 1405.5381 · arxiv_version: 1405.5381v2 · doi: 10.48550/arxiv.1405.5381 · pith_short_12: RWE6ID5LKOEW · pith_short_16: RWE6ID5LKOEWAOKS · pith_short_8: RWE6ID5L

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/RWE6ID5LKOEWAOKS7NBIVS5BRM \
  | 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: 8d89e40fab5389603952fb428acba18b3e0115a9b1d16192387b6630dea781f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "130d7317cc25fbae7fbcc662b860abbcbedb3e434a061bb172b1302b23cf6be8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-05-21T11:36:42Z",
    "title_canon_sha256": "16b940714333a8273b32f3c664c2e31fd6b2ecb933c166688d74221aeb9b69fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.5381",
    "kind": "arxiv",
    "version": 2
  }
}