Pith Number

pith:P5NBSQLY

pith:2017:P5NBSQLYUPDTWP3H7PWF5XJ53O

not attested not anchored not stored refs pending

Stochastic Gradient Descent for Linear Systems with Missing Data

Anna Ma, Deanna Needell

arxiv:1702.07098 v4 · 2017-02-23 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P5NBSQLYUPDTWP3H7PWF5XJ53O}

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	2026-05-17T23:56:48.718094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f5a194178a3c73b3f67fbec5edd3ddb8286647642e0981403eaa1c49eda0a2f

Aliases

arxiv: 1702.07098 · arxiv_version: 1702.07098v4 · doi: 10.48550/arxiv.1702.07098 · pith_short_12: P5NBSQLYUPDT · pith_short_16: P5NBSQLYUPDTWP3H · pith_short_8: P5NBSQLY

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/P5NBSQLYUPDTWP3H7PWF5XJ53O \
  | 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: 7f5a194178a3c73b3f67fbec5edd3ddb8286647642e0981403eaa1c49eda0a2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e800c3f3bc29313761e6aedd00c0ac0baee8260d2a1e2309abd8fede98c0b34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-02-23T05:13:00Z",
    "title_canon_sha256": "51c0692629bb2eace62555a38a1634431f177b5aa7c50f8d54492b5246531f62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07098",
    "kind": "arxiv",
    "version": 4
  }
}