Pith Number

pith:JQN7BY4P

pith:2024:JQN7BY4PLWUB5UWPYWWQK567IC

not attested not anchored not stored refs pending

Efficient Algorithms for Empirical Group Distributionally Robust Optimization and Beyond

Dingzhi Yu, Lijun Zhang, Wei Jiang, Yunuo Cai

arxiv:2403.03562 v2 · 2024-03-06 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JQN7BY4PLWUB5UWPYWWQK567IC}

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	2026-07-05T09:09:19.893808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c1bf0e38f5da81ed2cfc5ad0577df40a3103bddf7396c35916e8ebea339d2d7

Aliases

arxiv: 2403.03562 · arxiv_version: 2403.03562v2 · doi: 10.48550/arxiv.2403.03562 · pith_short_12: JQN7BY4PLWUB · pith_short_16: JQN7BY4PLWUB5UWP · pith_short_8: JQN7BY4P

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/JQN7BY4PLWUB5UWPYWWQK567IC \
  | 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: 4c1bf0e38f5da81ed2cfc5ad0577df40a3103bddf7396c35916e8ebea339d2d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f05e9422488963628b27f7218bfd430fcc94bb1e863fdd5e3a98fc696c4ff16f",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2024-03-06T09:14:24Z",
    "title_canon_sha256": "2f5941aa8248976481545c1cb669628f73f4675c42df3dc10dd18b159fb407ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.03562",
    "kind": "arxiv",
    "version": 2
  }
}