Pith Number

pith:YV47JCLH

pith:2022:YV47JCLHAG73JLPLUMUA54EVAN

not attested not anchored not stored refs pending

Gradient Properties of Hard Thresholding Operator

Jinglai Shen, Saeed Damadi

arxiv:2209.08247 v2 · 2022-09-17 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YV47JCLHAG73JLPLUMUA54EVAN}

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

Optimization over Sparse Support-Preserving Sets: Two-Step Projection with Global Optimality Guarantees

Receipt and verification

First computed	2026-07-05T05:01:41.130967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c579f4896701bfb4adeba3280ef0950362f6c5d60d46ca9d190e3b9deefafbb6

Aliases

arxiv: 2209.08247 · arxiv_version: 2209.08247v2 · doi: 10.48550/arxiv.2209.08247 · pith_short_12: YV47JCLHAG73 · pith_short_16: YV47JCLHAG73JLPL · pith_short_8: YV47JCLH

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/YV47JCLHAG73JLPLUMUA54EVAN \
  | 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: c579f4896701bfb4adeba3280ef0950362f6c5d60d46ca9d190e3b9deefafbb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "008d430377b79ee7aaf50137e9696433545db38e410bfaf0f041ab7cb859477a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2022-09-17T05:01:58Z",
    "title_canon_sha256": "3cfc8846c5133045f157d15ab91f48c99f0afc38c845762819b192e06a2a9cdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.08247",
    "kind": "arxiv",
    "version": 2
  }
}