Pith Number

pith:65SZBCO4

pith:2025:65SZBCO4MVQ5AEX2NXEOHB5BY5

not attested not anchored not stored refs pending

FairZK: A Scalable System to Prove Machine Learning Fairness in Zero-Knowledge

O. Deniz Kose, Shen Dong, Tianyu Zhang, Yanning Shen, Yupeng Zhang

arxiv:2505.07997 v2 · 2025-05-12 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{65SZBCO4MVQ5AEX2NXEOHB5BY5}

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	2026-07-05T11:04:51.073713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7659089dc6561d012fa6dc8e387a1c75afad90a1951670d47043a5f2327dcb4

Aliases

arxiv: 2505.07997 · arxiv_version: 2505.07997v2 · doi: 10.48550/arxiv.2505.07997 · pith_short_12: 65SZBCO4MVQ5 · pith_short_16: 65SZBCO4MVQ5AEX2 · pith_short_8: 65SZBCO4

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/65SZBCO4MVQ5AEX2NXEOHB5BY5 \
  | 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: f7659089dc6561d012fa6dc8e387a1c75afad90a1951670d47043a5f2327dcb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba2cdce4544051fcf6c50f4db7ee62fe23fa42f386a8225f53c76b0b60989422",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-12T18:52:36Z",
    "title_canon_sha256": "e4fd758b742b533a6a1b06d5769cab75794b301671b6fa2b970efa35a57dff9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.07997",
    "kind": "arxiv",
    "version": 2
  }
}