Pith Number

pith:ZW6QQJA4

pith:2017:ZW6QQJA4VMEKK3HZB7VL7WRIHU

not attested not anchored not stored refs pending

Balanced $k$-Center Clustering When $k$ Is A Constant

Hu Ding

arxiv:1704.02515 v1 · 2017-04-08 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZW6QQJA4VMEKK3HZB7VL7WRIHU}

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	2026-05-18T00:46:45.262896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdbd08241cab08a56cf90feabfda283d147969c519936979a75fb549a96a5117

Aliases

arxiv: 1704.02515 · arxiv_version: 1704.02515v1 · doi: 10.48550/arxiv.1704.02515 · pith_short_12: ZW6QQJA4VMEK · pith_short_16: ZW6QQJA4VMEKK3HZ · pith_short_8: ZW6QQJA4

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/ZW6QQJA4VMEKK3HZB7VL7WRIHU \
  | 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: cdbd08241cab08a56cf90feabfda283d147969c519936979a75fb549a96a5117

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7ff9cf27edd951911f4cf3dcea3f9d5bec302db3fd4aefe123736b56955919e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-04-08T17:30:26Z",
    "title_canon_sha256": "e703ced153ba498bb0c79af42eff1d978b03622f3ef1052f9ca7de1b46682583"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02515",
    "kind": "arxiv",
    "version": 1
  }
}