Pith Number

pith:BJ4IBBDJ

pith:2021:BJ4IBBDJY2YI4LZ27CYZFVWBPB

not attested not anchored not stored refs pending

Structured Directional Pruning via Perturbation Orthogonal Projection

Qing Wang, Xiaofeng Liu, Yanhui Geng, Yinchuan Li, Yunfeng Shao

arxiv:2107.05328 v2 · 2021-07-12 · 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{BJ4IBBDJY2YI4LZ27CYZFVWBPB}

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	2026-07-05T03:24:30.490073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a78808469c6b08e2f3af8b192d6c17860cb48a06237c99aa33f11f632732de3

Aliases

arxiv: 2107.05328 · arxiv_version: 2107.05328v2 · doi: 10.48550/arxiv.2107.05328 · pith_short_12: BJ4IBBDJY2YI · pith_short_16: BJ4IBBDJY2YI4LZ2 · pith_short_8: BJ4IBBDJ

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/BJ4IBBDJY2YI4LZ27CYZFVWBPB \
  | 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: 0a78808469c6b08e2f3af8b192d6c17860cb48a06237c99aa33f11f632732de3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e353abfcab80db8b615f9b9ed952b7dd276f4f4bd54906ee5366ee050432a618",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-07-12T11:35:47Z",
    "title_canon_sha256": "01439596c9a2f0b9dee8cce02afb1d116ca6a467c40f44c9bc662a5402bfdab0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.05328",
    "kind": "arxiv",
    "version": 2
  }
}