Pith Number

pith:XZ3JWCOC

pith:2014:XZ3JWCOCVT7CWGCYJNFB6LR4W2

not attested not anchored not stored refs pending

An Improved Approximation for $k$-median, and Positive Correlation in Budgeted Optimization

Aravind Srinivasan, Bartosz Rybicki, Jaros{\l}aw Byrka, Khoa Trinh, Thomas Pensyl

arxiv:1406.2951 v4 · 2014-06-11 · 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{XZ3JWCOCVT7CWGCYJNFB6LR4W2}

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	2026-05-18T01:16:26.777449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be769b09c2acfe2b18584b4a1f2e3cb681c199a9546e9fa197dc4f5789f62227

Aliases

arxiv: 1406.2951 · arxiv_version: 1406.2951v4 · doi: 10.48550/arxiv.1406.2951 · pith_short_12: XZ3JWCOCVT7C · pith_short_16: XZ3JWCOCVT7CWGCY · pith_short_8: XZ3JWCOC

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/XZ3JWCOCVT7CWGCYJNFB6LR4W2 \
  | 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: be769b09c2acfe2b18584b4a1f2e3cb681c199a9546e9fa197dc4f5789f62227

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7569f5b38445f9b8d7f528959d2201dda18776ea5619d1b73b58fe964f6dd02a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-06-11T16:14:27Z",
    "title_canon_sha256": "8605e76bd64ecb2f7ff02c9389ef3b909ab4b505f23f93eea10e4f007a3952f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2951",
    "kind": "arxiv",
    "version": 4
  }
}