Pith Number

pith:CYPECO2U

pith:2018:CYPECO2UHQJZZQUU2JYLYKI7D6

not attested not anchored not stored refs pending

Mathematical models and search algorithms for the capacitated $p$-center problem

Manuel Iori, Raphael Kramer, Thibaut Vidal

arxiv:1803.04865 v1 · 2018-03-13 · 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{CYPECO2UHQJZZQUU2JYLYKI7D6}

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	2026-05-18T00:21:15.580528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

161e413b543c139cc294d270bc291f1faaf727ca928e6832f77c0901b89a8a9d

Aliases

arxiv: 1803.04865 · arxiv_version: 1803.04865v1 · doi: 10.48550/arxiv.1803.04865 · pith_short_12: CYPECO2UHQJZ · pith_short_16: CYPECO2UHQJZZQUU · pith_short_8: CYPECO2U

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/CYPECO2UHQJZZQUU2JYLYKI7D6 \
  | 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: 161e413b543c139cc294d270bc291f1faaf727ca928e6832f77c0901b89a8a9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c13b50ee2f756188b2235cd002b10caa8324d5e1c021bf55f81c789af43ebf3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-03-13T15:02:57Z",
    "title_canon_sha256": "3dab6b3757c1e706a93e967c25c4431c27ad9f9fb607ed2d7de063188abe2e88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04865",
    "kind": "arxiv",
    "version": 1
  }
}