Pith Number

pith:LTJ35VFV

pith:2021:LTJ35VFV2NNRUTUND5TKIXAMJ5

not attested not anchored not stored refs pending

EF21: A New, Simpler, Theoretically Better, and Practically Faster Error Feedback

Igor Sokolov, Ilyas Fatkhullin, Peter Richt\'arik

arxiv:2106.05203 v1 · 2021-06-09 · cs.LG · math.OC · 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{LTJ35VFV2NNRUTUND5TKIXAMJ5}

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

4 papers in Pith

LOSCAR-SGD: Local SGD with Communication-Computation Overlap and Delay-Corrected Sparse Model Averaging

Ringmaster LMO: Asynchronous Linear Minimization Oracle Momentum Method

Rennala MVR: Improved Time Complexity for Parallel Stochastic Optimization via Momentum-Based Variance Reduction

Scalable Distributed Stochastic Optimization via Bidirectional Compression: Beyond Pessimistic Limits

Receipt and verification

First computed	2026-07-05T02:47:54.409037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cd3bed4b5d35b1a4e8d1f66a45c0c4f52999c775fb675bb5a3883a1857c478e

Aliases

arxiv: 2106.05203 · arxiv_version: 2106.05203v1 · doi: 10.48550/arxiv.2106.05203 · pith_short_12: LTJ35VFV2NNR · pith_short_16: LTJ35VFV2NNRUTUN · pith_short_8: LTJ35VFV

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/LTJ35VFV2NNRUTUND5TKIXAMJ5 \
  | 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: 5cd3bed4b5d35b1a4e8d1f66a45c0c4f52999c775fb675bb5a3883a1857c478e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c82167d5a416ee31c4e791603a5facbfb8d53feecdf53dbf4c7fe3314665a962",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-06-09T16:45:53Z",
    "title_canon_sha256": "05cfa4c07b949b5dff7c07c9c46668a0fa2c872d3f5a33600a5766f82be1bb6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.05203",
    "kind": "arxiv",
    "version": 1
  }
}