Pith Number

pith:BUBK5BSA

pith:2019:BUBK5BSAH36RRI5ZOPM3HMNTAV

not attested not anchored not stored refs pending

Polynomial Matrix Completion for Missing Data Imputation and Transductive Learning

Jicong Fan, Madeleine Udell, Yuqian Zhang

arxiv:1912.06989 v1 · 2019-12-15 · 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{BUBK5BSAH36RRI5ZOPM3HMNTAV}

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	2026-07-05T00:26:17.403744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d02ae86403efd18a3b973d9b3b1b3054af4d1db43b97fbca2ae70dffc841814

Aliases

arxiv: 1912.06989 · arxiv_version: 1912.06989v1 · doi: 10.48550/arxiv.1912.06989 · pith_short_12: BUBK5BSAH36R · pith_short_16: BUBK5BSAH36RRI5Z · pith_short_8: BUBK5BSA

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/BUBK5BSAH36RRI5ZOPM3HMNTAV \
  | 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: 0d02ae86403efd18a3b973d9b3b1b3054af4d1db43b97fbca2ae70dffc841814

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f290034be59cb0dfee239b846ba2346cc40f0171fcfffb854972aef9866cbb5",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-12-15T06:39:00Z",
    "title_canon_sha256": "831b372798add4a60099366375215f1426371a40d69db7a82f8601dd8aa2f7b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.06989",
    "kind": "arxiv",
    "version": 1
  }
}