Pith Number

pith:U5XPEDJA

pith:2017:U5XPEDJA5E5CWVZ25CJU4TVHUI

not attested not anchored not stored refs pending

Improvements on the k-center problem for uncertain data

Amir Jafari, Sharareh Alipour

arxiv:1708.09180 v1 · 2017-08-30 · 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{U5XPEDJA5E5CWVZ25CJU4TVHUI}

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	2026-05-18T00:36:20.714229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a76ef20d20e93a2b573ae8934e4ea7a21a3a86a6ca99db131a128e76ff40319b

Aliases

arxiv: 1708.09180 · arxiv_version: 1708.09180v1 · doi: 10.48550/arxiv.1708.09180 · pith_short_12: U5XPEDJA5E5C · pith_short_16: U5XPEDJA5E5CWVZ2 · pith_short_8: U5XPEDJA

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/U5XPEDJA5E5CWVZ25CJU4TVHUI \
  | 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: a76ef20d20e93a2b573ae8934e4ea7a21a3a86a6ca99db131a128e76ff40319b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a26f351253c7c9707de26f31f91aec7e10c8b157dd58ec09732bcd5d56b7182",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-08-30T09:07:06Z",
    "title_canon_sha256": "1d00520ccfbb4ac621fab86d09c01d7d78ca466fee60aa61f271bb2d4a360804"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09180",
    "kind": "arxiv",
    "version": 1
  }
}