Pith Number

pith:HVCI5NDR

pith:2018:HVCI5NDRWQAQ2RMKE7P6NZLBZW

not attested not anchored not stored refs pending

Deterministic $O(1)$-Approximation Algorithms to 1-Center Clustering with Outliers

Shyam Narayanan

arxiv:1806.07356 v2 · 2018-06-19 · 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{HVCI5NDRWQAQ2RMKE7P6NZLBZW}

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	2026-05-18T00:04:39.271447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d448eb471b4010d458a27dfe6e561cd92eee5a865ef37b84a000728dc655bf3

Aliases

arxiv: 1806.07356 · arxiv_version: 1806.07356v2 · doi: 10.48550/arxiv.1806.07356 · pith_short_12: HVCI5NDRWQAQ · pith_short_16: HVCI5NDRWQAQ2RMK · pith_short_8: HVCI5NDR

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/HVCI5NDRWQAQ2RMKE7P6NZLBZW \
  | 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: 3d448eb471b4010d458a27dfe6e561cd92eee5a865ef37b84a000728dc655bf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b00ef43f9b569513a0179509bcc7b8a696a322bcc930d1b481db8500692e3c9b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-06-19T17:39:46Z",
    "title_canon_sha256": "e6d0301c60f1b32cdd7ea92e6c34f77f6333a2fa5ce57d1e212f035db2ef3d02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07356",
    "kind": "arxiv",
    "version": 2
  }
}