Pith Number

pith:KUEVWOS5

pith:2019:KUEVWOS5E3RQTYIWBF2XEUJZIW

not attested not anchored not stored refs pending

ProPublica's COMPAS Data Revisited

Matias Barenstein

arxiv:1906.04711 v3 · 2019-06-11 · econ.GN · cs.CY · cs.LG · q-fin.EC · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KUEVWOS5E3RQTYIWBF2XEUJZIW}

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.

Cited by

1 paper in Pith

Learning Heterogeneous Performance-Fairness Trade-offs in Federated Learning

Receipt and verification

First computed	2026-05-17T23:41:07.824781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55095b3a5d26e309e1160975725139459fe947d7dd24da617a76ac2214a20edd

Aliases

arxiv: 1906.04711 · arxiv_version: 1906.04711v3 · doi: 10.48550/arxiv.1906.04711 · pith_short_12: KUEVWOS5E3RQ · pith_short_16: KUEVWOS5E3RQTYIW · pith_short_8: KUEVWOS5

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/KUEVWOS5E3RQTYIWBF2XEUJZIW \
  | 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: 55095b3a5d26e309e1160975725139459fe947d7dd24da617a76ac2214a20edd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c59b8bc40278ee083df15b6eeaa0284e8703fa23c07f22575559a3e380b4cc3f",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.LG",
      "q-fin.EC",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2019-06-11T17:27:25Z",
    "title_canon_sha256": "76b4defc9551cd88e9a847400a3c060294111dc84d959ae4a4bd68c749dcfcb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04711",
    "kind": "arxiv",
    "version": 3
  }
}