Pith Number

pith:JH7TE4QK

pith:2020:JH7TE4QKA7B5BKGAPBQ45GN645

not attested not anchored not stored refs pending

Riemannian Stochastic Proximal Gradient Methods for Nonsmooth Optimization over the Stiefel Manifold

Bokun Wang, Lingzhou Xue, Shiqian Ma

arxiv:2005.01209 v2 · 2020-05-03 · math.OC · 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{JH7TE4QKA7B5BKGAPBQ45GN645}

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	2026-07-05T04:06:39.968261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49ff32720a07c3d0a8c07861ce99bee7665f858526da2e837f1eaecfafd3c4b3

Aliases

arxiv: 2005.01209 · arxiv_version: 2005.01209v2 · doi: 10.48550/arxiv.2005.01209 · pith_short_12: JH7TE4QKA7B5 · pith_short_16: JH7TE4QKA7B5BKGA · pith_short_8: JH7TE4QK

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/JH7TE4QKA7B5BKGAPBQ45GN645 \
  | 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: 49ff32720a07c3d0a8c07861ce99bee7665f858526da2e837f1eaecfafd3c4b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb6f31f1cb28ec943e8d0e3b0e3b146e0791c17746080026dbe85709e917c47a",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2020-05-03T23:41:35Z",
    "title_canon_sha256": "5584a894798eea5e5b3c24f39cf1beccd7746ab9b0ca34c0d4e28dcc32be08ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.01209",
    "kind": "arxiv",
    "version": 2
  }
}