Pith Number

pith:QINBRCTW

pith:2010:QINBRCTWHDGOIRZQKQE2D3SCVS

not attested not anchored not stored refs pending

Approximation Algorithms for the Capacitated Domination Problem

Han-Lin Chen, Mong-Jen Kao

arxiv:1004.2839 v2 · 2010-04-16 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QINBRCTWHDGOIRZQKQE2D3SCVS}

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	2026-05-18T02:08:04.664174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

821a188a7638cce447305409a1ee42ac8c9528a4f6babcca24dd72e80be57660

Aliases

arxiv: 1004.2839 · arxiv_version: 1004.2839v2 · doi: 10.48550/arxiv.1004.2839 · pith_short_12: QINBRCTWHDGO · pith_short_16: QINBRCTWHDGOIRZQ · pith_short_8: QINBRCTW

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/QINBRCTWHDGOIRZQKQE2D3SCVS \
  | 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: 821a188a7638cce447305409a1ee42ac8c9528a4f6babcca24dd72e80be57660

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9daff27fa21cc8bf7f04122dea3572e628ea2941104cc13ff4b3e82eb46b85e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2010-04-16T13:30:47Z",
    "title_canon_sha256": "0fa97be72e803c02c59cfd68a8e9018a408eba398ff6f4adb41c7c2afbdfd1e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2839",
    "kind": "arxiv",
    "version": 2
  }
}