Pith Number

pith:O2EKLGEB

pith:2011:O2EKLGEBSRM7TIBNU6LADTIH67

not attested not anchored not stored refs pending

Distributed Matrix Completion and Robust Factorization

Ameet Talwalkar, Lester Mackey, Michael I. Jordan

arxiv:1107.0789 v7 · 2011-07-05 · cs.LG · cs.DS · cs.NA · math.NA · 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{O2EKLGEBSRM7TIBNU6LADTIH67}

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	2026-05-18T03:08:47.931019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7688a598819459f9a02da79601cd07f7f5d4b07f9deecd518c5bd71335418659

Aliases

arxiv: 1107.0789 · arxiv_version: 1107.0789v7 · doi: 10.48550/arxiv.1107.0789 · pith_short_12: O2EKLGEBSRM7 · pith_short_16: O2EKLGEBSRM7TIBN · pith_short_8: O2EKLGEB

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/O2EKLGEBSRM7TIBNU6LADTIH67 \
  | 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: 7688a598819459f9a02da79601cd07f7f5d4b07f9deecd518c5bd71335418659

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb79e3b2f2728445697110fe2f3dfb591f994c591e1bd87be697da16fd7ee781",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.NA",
      "math.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2011-07-05T06:03:44Z",
    "title_canon_sha256": "c60be36e55ea6944acade505ef5c8b3e3d4beec100e80aa8e13cc1e174f340d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.0789",
    "kind": "arxiv",
    "version": 7
  }
}