Pith Number

pith:ZE4MY5XN

pith:2021:ZE4MY5XNDJXPMYQPFOPQLSKV3B

not attested not anchored not stored refs pending

AgFlow: Fast Model Selection of Penalized PCA via Implicit Regularization Effects of Gradient Flow

Dejing Dou, Dongrui Wu, Haiyan Jiang, Haoyi Xiong, Ji Liu

arxiv:2110.03273 v1 · 2021-10-07 · 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{ZE4MY5XNDJXPMYQPFOPQLSKV3B}

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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	2026-07-05T03:20:41.082574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c938cc76ed1a6ef6620f2b9f05c955d85e7e207c32281428ffa3eacb19b59364

Aliases

arxiv: 2110.03273 · arxiv_version: 2110.03273v1 · doi: 10.48550/arxiv.2110.03273 · pith_short_12: ZE4MY5XNDJXP · pith_short_16: ZE4MY5XNDJXPMYQP · pith_short_8: ZE4MY5XN

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/ZE4MY5XNDJXPMYQPFOPQLSKV3B \
  | 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: c938cc76ed1a6ef6620f2b9f05c955d85e7e207c32281428ffa3eacb19b59364

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fb18166a3c70f17462124e5c111ae0c9abc800917ff34cc6155a665fe205b8c",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-10-07T08:57:46Z",
    "title_canon_sha256": "d75e768cd05302f74734580c16de76e9b893399c0e4cf6c12a518b5f348c62d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.03273",
    "kind": "arxiv",
    "version": 1
  }
}