Pith Number

pith:BR7AKKS6

pith:2019:BR7AKKS6ZGSCKODXTRDRF3FO5Q

not attested not anchored not stored refs pending

Matrix Completion With Selective Sampling

Christian Parkinson, Deanna Needell, Kevin Huynh

arxiv:1904.08540 v1 · 2019-04-17 · cs.LG · 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{BR7AKKS6ZGSCKODXTRDRF3FO5Q}

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	2026-05-17T23:48:13.895660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c7e052a5ec9a42538779c4712ecaeec04bded79deefa7d83a878916a9abe88f

Aliases

arxiv: 1904.08540 · arxiv_version: 1904.08540v1 · doi: 10.48550/arxiv.1904.08540 · pith_short_12: BR7AKKS6ZGSC · pith_short_16: BR7AKKS6ZGSCKODX · pith_short_8: BR7AKKS6

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/BR7AKKS6ZGSCKODXTRDRF3FO5Q \
  | 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: 0c7e052a5ec9a42538779c4712ecaeec04bded79deefa7d83a878916a9abe88f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "296d85efa89227ae939469a2eac26292f3a3efcca2e100012ef822b13dd72839",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-17T23:57:19Z",
    "title_canon_sha256": "f65d87f58ec71451174c9667dc677184efad294f2dba81b9c66f4cd63ffb9168"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08540",
    "kind": "arxiv",
    "version": 1
  }
}