Pith Number

pith:BRDGESCN

pith:2021:BRDGESCNRMYS3LUWAO7BSC6HFS

not attested not anchored not stored refs pending

Sparse GCA and Thresholded Gradient Descent

Sheng Gao, Zongming Ma

arxiv:2107.00371 v2 · 2021-07-01 · stat.ML · 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{BRDGESCNRMYS3LUWAO7BSC6HFS}

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

Stochastic optimization over expectation-formulated generalized Stiefel manifold

Receipt and verification

First computed	2026-07-05T05:38:39.691368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c4662484d8b312dae9603be190bc72ca6276ec8e0c5f21c251e891ad604baff

Aliases

arxiv: 2107.00371 · arxiv_version: 2107.00371v2 · doi: 10.48550/arxiv.2107.00371 · pith_short_12: BRDGESCNRMYS · pith_short_16: BRDGESCNRMYS3LUW · pith_short_8: BRDGESCN

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/BRDGESCNRMYS3LUWAO7BSC6HFS \
  | 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: 0c4662484d8b312dae9603be190bc72ca6276ec8e0c5f21c251e891ad604baff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e8a85927ae8d936d36caf04de4f9c54c794111afbf4a189b2f1625ca73be2e5",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2021-07-01T11:15:20Z",
    "title_canon_sha256": "32bdee0cc90f7464cb3d6ed1802210460c931198a1ecb6002f417697d7aa0ecb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.00371",
    "kind": "arxiv",
    "version": 2
  }
}