Pith Number

pith:4V7RVKHJ

pith:2018:4V7RVKHJNAD4VC754WJKBZKA67

not attested not anchored not stored refs pending

An extended version of a Branch-Price-and-Cut Procedure for the Discrete Ordered Median Problem

Diego Ponce, Justo Puerto, Martine Labb\'e, Samuel Deleplanque

arxiv:1802.03191 v1 · 2018-02-09 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4V7RVKHJNAD4VC754WJKBZKA67}

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	2026-05-18T00:23:58.345422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e57f1aa8e96807ca8bfde592a0e540f7cd389e3c401a662dc28661c7b28c33a3

Aliases

arxiv: 1802.03191 · arxiv_version: 1802.03191v1 · doi: 10.48550/arxiv.1802.03191 · pith_short_12: 4V7RVKHJNAD4 · pith_short_16: 4V7RVKHJNAD4VC75 · pith_short_8: 4V7RVKHJ

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/4V7RVKHJNAD4VC754WJKBZKA67 \
  | 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: e57f1aa8e96807ca8bfde592a0e540f7cd389e3c401a662dc28661c7b28c33a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9399bb5b0358576a64a0ca58bbedf19c85f091307d789540610acd76cc0a9fc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-02-09T10:25:47Z",
    "title_canon_sha256": "fb7740071cc8ecaf27a4a3ecb1f2e0ad323745eda3cf5b9b1de46925a1e0e6b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.03191",
    "kind": "arxiv",
    "version": 1
  }
}