Pith Number

pith:XEY7LEKC

pith:2024:XEY7LEKC7AEQ2OWVP6WX4RSE6C

not attested not anchored not stored refs pending

In-depth Analysis of Low-rank Matrix Factorisation in a Federated Setting

Constantin Philippenko, Kevin Scaman, Laurent Massouli\'e

arxiv:2409.08771 v2 · 2024-09-13 · cs.LG · 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{XEY7LEKC7AEQ2OWVP6WX4RSE6C}

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	2026-07-05T11:40:31.425535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b931f59142f8090d3ad57fad7e4644f08ca962c32771acfc14be51f24c3130bf

Aliases

arxiv: 2409.08771 · arxiv_version: 2409.08771v2 · doi: 10.48550/arxiv.2409.08771 · pith_short_12: XEY7LEKC7AEQ · pith_short_16: XEY7LEKC7AEQ2OWV · pith_short_8: XEY7LEKC

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/XEY7LEKC7AEQ2OWVP6WX4RSE6C \
  | 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: b931f59142f8090d3ad57fad7e4644f08ca962c32771acfc14be51f24c3130bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a10070d0eca6be1601b69d976d66824e15163a9f668442a325cd3b92bced2604",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2024-09-13T12:28:42Z",
    "title_canon_sha256": "eddf9a3635cc24ce5404cd6cfd05b2666867f4ed7fdc1a8846ac72aadd01e376"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.08771",
    "kind": "arxiv",
    "version": 2
  }
}