Pith Number

pith:YR5UFG2J

pith:2023:YR5UFG2JS7MTR6QCJM3ALGOUBG

not attested not anchored not stored refs pending

On Sinkhorn's Algorithm and Choice Modeling

Alfred Galichon, Johan Ugander, Wenzhi Gao, Zhaonan Qu

arxiv:2310.00260 v2 · 2023-09-30 · math.OC · cs.LG · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YR5UFG2JS7MTR6QCJM3ALGOUBG}

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	2026-07-05T10:45:04.416402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c47b429b4997d938fa024b360599d409bea2aed8617b76bb102fb7a7b04d31b5

Aliases

arxiv: 2310.00260 · arxiv_version: 2310.00260v2 · doi: 10.48550/arxiv.2310.00260 · pith_short_12: YR5UFG2JS7MT · pith_short_16: YR5UFG2JS7MTR6QC · pith_short_8: YR5UFG2J

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/YR5UFG2JS7MTR6QCJM3ALGOUBG \
  | 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: c47b429b4997d938fa024b360599d409bea2aed8617b76bb102fb7a7b04d31b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e69e6a4c317a518954142daf321a678db59733d29f0acfa477ffa1da0460749",
    "cross_cats_sorted": [
      "cs.LG",
      "econ.EM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2023-09-30T05:20:23Z",
    "title_canon_sha256": "d48aee33d82ba3745a2871597d01b5477d159260b35946e2f83a849a6ac498e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2310.00260",
    "kind": "arxiv",
    "version": 2
  }
}