Pith Number

pith:ROZQHD4P

pith:2014:ROZQHD4PG65NSA3ZOLL72O6S4G

not attested not anchored not stored refs pending

Constant Factor Approximation for Capacitated k-Center with Outliers

Marek Cygan, Tomasz Kociumaka

arxiv:1401.2874 v1 · 2014-01-13 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ROZQHD4PG65NSA3ZOLL72O6S4G}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:02:31.639973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bb3038f8f37bad9037972d7fd3bd2e18e1f6ae9a6a12d92eea42e4f8e691d47

Aliases

arxiv: 1401.2874 · arxiv_version: 1401.2874v1 · doi: 10.48550/arxiv.1401.2874 · pith_short_12: ROZQHD4PG65N · pith_short_16: ROZQHD4PG65NSA3Z · pith_short_8: ROZQHD4P

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/ROZQHD4PG65NSA3ZOLL72O6S4G \
  | 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: 8bb3038f8f37bad9037972d7fd3bd2e18e1f6ae9a6a12d92eea42e4f8e691d47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5c37b3027643081f34eadfbd6236c405040e94a449dcc65252cfd8d98e22f57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-01-13T15:37:02Z",
    "title_canon_sha256": "6b43b43d56594f10c3eca229cb2922cf9c571a08d8493fa4e73aabf92ccaeb10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2874",
    "kind": "arxiv",
    "version": 1
  }
}