Pith Number

pith:SA3RW7PT

pith:2025:SA3RW7PTXVKBRLRMUR6U42LE3M

not attested not anchored not stored refs pending

Complexity and Manipulation of International Kidney Exchange Programmes with Country-Specific Parameters

Daniel Paulusma, David Manlove, Mengxiao Zhang, Rachael Colley

arxiv:2506.04092 v2 · 2025-06-04 · cs.GT · cs.CC · econ.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SA3RW7PTXVKBRLRMUR6U42LE3M}

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	2026-07-05T11:16:36.278685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90371b7df3bd5418ae2ca47d4e6964db3b3c72eb200fa18a215e0fd4eb8568c2

Aliases

arxiv: 2506.04092 · arxiv_version: 2506.04092v2 · doi: 10.48550/arxiv.2506.04092 · pith_short_12: SA3RW7PTXVKB · pith_short_16: SA3RW7PTXVKBRLRM · pith_short_8: SA3RW7PT

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/SA3RW7PTXVKBRLRMUR6U42LE3M \
  | 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: 90371b7df3bd5418ae2ca47d4e6964db3b3c72eb200fa18a215e0fd4eb8568c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4154d9b7f889bfa0d54ca101d255abf6dab8dc13eb59da06aa422e4a80059254",
    "cross_cats_sorted": [
      "cs.CC",
      "econ.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2025-06-04T15:49:53Z",
    "title_canon_sha256": "6c385e600a16de7e34406e422fe2a33a196cde60c0177f8d6cffbced0859b448"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.04092",
    "kind": "arxiv",
    "version": 2
  }
}