Pith Number

pith:ZH5ZPQO5

pith:2016:ZH5ZPQO5SBFSHMAKZODRP45ZVI

not attested not anchored not stored refs pending

Provable Efficient Online Matrix Completion via Non-convex Stochastic Gradient Descent

Chi Jin, Praneeth Netrapalli, Sham M. Kakade

arxiv:1605.08370 v1 · 2016-05-26 · 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{ZH5ZPQO5SBFSHMAKZODRP45ZVI}

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	2026-05-18T01:13:31.736792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9fb97c1dd904b23b00acb8717f3b9aa3a9b3cd3fc41111e33f7fcf50adf94be

Aliases

arxiv: 1605.08370 · arxiv_version: 1605.08370v1 · doi: 10.48550/arxiv.1605.08370 · pith_short_12: ZH5ZPQO5SBFS · pith_short_16: ZH5ZPQO5SBFSHMAK · pith_short_8: ZH5ZPQO5

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/ZH5ZPQO5SBFSHMAKZODRP45ZVI \
  | 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: c9fb97c1dd904b23b00acb8717f3b9aa3a9b3cd3fc41111e33f7fcf50adf94be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5dc342f7ccabc62e72d923350d5d5f1ae4e9041064f9c63d14db3fe9e9e4c54d",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-05-26T17:26:18Z",
    "title_canon_sha256": "6a130b5d8c4cd8e426f039c273faeda2ef2c055fb6450ff279f8928efd965f8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.08370",
    "kind": "arxiv",
    "version": 1
  }
}