Pith Number

pith:4EKFQAB3

pith:2026:4EKFQAB3HRB475DPEN54Y2P53A

not attested not anchored not stored refs pending

Optimizing for Fairness in Generalized Kidney Exchange: Theory and Computations

Arin Khare, Claire Chang, David Shmoys

arxiv:2605.20070 v1 · 2026-05-19 · cs.DS · 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{4EKFQAB3HRB475DPEN54Y2P53A}

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	2026-05-20T02:06:00.941483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e11458003b3c43cff46f237bcc69fdd834d07b86219b6a4c76c18342d2084b35

Aliases

arxiv: 2605.20070 · arxiv_version: 2605.20070v1 · doi: 10.48550/arxiv.2605.20070 · pith_short_12: 4EKFQAB3HRB4 · pith_short_16: 4EKFQAB3HRB475DP · pith_short_8: 4EKFQAB3

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/4EKFQAB3HRB475DPEN54Y2P53A \
  | 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: e11458003b3c43cff46f237bcc69fdd834d07b86219b6a4c76c18342d2084b35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b918bb18ee544153f390e766e5cd3eac7141a0f4b899c71795b75d1bfaca3a7b",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2026-05-19T16:23:51Z",
    "title_canon_sha256": "a67baa69cc720fbb85e3584c4fdd03c07e5114c89aa23307213c8ba152930072"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20070",
    "kind": "arxiv",
    "version": 1
  }
}