Pith Number

pith:OLQJTD47

pith:2019:OLQJTD47OMKPNIPPO5QAQE4K7V

not attested not anchored not stored refs pending

IP Solutions for International Kidney Exchange Programmes

2), (2) Hungary Department of Operations Research, (3) Department of Computer Science, (4) Department of Industrial Engineering, Actuarial Sciences, Alexandru Popa (3), Corvinus University of Budapest, Hungarian Academy of Sciences, Hungary, IIT Bombay, India), M\'arton Gyetvai (1, Operations Research, P\'eter Bir\'o (1, Radu Stefan Mincu (3), Romania, University of Bucharest, Utkarsh Verma (4) ((1) Institute of Economics

arxiv:1904.07448 v2 · 2019-04-15 · 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{OLQJTD47OMKPNIPPO5QAQE4K7V}

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	2026-05-17T23:48:08.943009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72e0998f9f7314f6a1ef776008138afd61d59d8bd40ebdbf47a2a8c6d0c224c0

Aliases

arxiv: 1904.07448 · arxiv_version: 1904.07448v2 · doi: 10.48550/arxiv.1904.07448 · pith_short_12: OLQJTD47OMKP · pith_short_16: OLQJTD47OMKPNIPP · pith_short_8: OLQJTD47

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/OLQJTD47OMKPNIPPO5QAQE4K7V \
  | 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: 72e0998f9f7314f6a1ef776008138afd61d59d8bd40ebdbf47a2a8c6d0c224c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ecbc2dc376bd85ec36b6c4100baadf71b2558db3744b0c23043cfe86ea3b930",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-04-15T15:39:09Z",
    "title_canon_sha256": "150775f343cdbc5db6961e019015a5eaa9629eee28ed61c7eb308974a505d409"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07448",
    "kind": "arxiv",
    "version": 2
  }
}