Pith Number

pith:PZ7DJPDL

pith:2022:PZ7DJPDLNKT6TKNSZPOEELYITF

not attested not anchored not stored refs pending

Distributed Learning With Sparsified Gradient Differences

Brian M. Sadler, Martin Takac, Rick S. Blum, Yicheng Chen

arxiv:2202.02491 v1 · 2022-02-05 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZ7DJPDLNKT6TKNSZPOEELYITF}

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	2026-07-05T03:54:29.402915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e7e34bc6b6aa7e9a9b2cbdc422f08996111ea70fe972d78fff721307618ec7e

Aliases

arxiv: 2202.02491 · arxiv_version: 2202.02491v1 · doi: 10.48550/arxiv.2202.02491 · pith_short_12: PZ7DJPDLNKT6 · pith_short_16: PZ7DJPDLNKT6TKNS · pith_short_8: PZ7DJPDL

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/PZ7DJPDLNKT6TKNSZPOEELYITF \
  | 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: 7e7e34bc6b6aa7e9a9b2cbdc422f08996111ea70fe972d78fff721307618ec7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9687507e28f57735fa2eae239491e28a87ef42aab4ff7ed31ef76b6c6334e27",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-02-05T04:51:36Z",
    "title_canon_sha256": "14119bc4ac3d3c692bdb5f111ea559d8c2ff535db0a0871d8d2c22132d13f63d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.02491",
    "kind": "arxiv",
    "version": 1
  }
}