Pith Number

pith:NSCFCYCF

pith:2017:NSCFCYCF2LF54CXB4NLIHDSWQQ

not attested not anchored not stored refs pending

Structured Matrix Estimation and Completion

Alexandre B. Tsybakov (ENSAE ParisTech, CREST), Harrison H. Zhou, Olga Klopp (CREST), Yu Lu

arxiv:1707.02090 v1 · 2017-07-07 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NSCFCYCF2LF54CXB4NLIHDSWQQ}

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	2026-05-18T00:40:42.992034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c84516045d2cbde0ae1e356838e56840c3eb23dafe9aa6c267b19e2c9dd8fa9

Aliases

arxiv: 1707.02090 · arxiv_version: 1707.02090v1 · doi: 10.48550/arxiv.1707.02090 · pith_short_12: NSCFCYCF2LF5 · pith_short_16: NSCFCYCF2LF54CXB · pith_short_8: NSCFCYCF

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/NSCFCYCF2LF54CXB4NLIHDSWQQ \
  | 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: 6c84516045d2cbde0ae1e356838e56840c3eb23dafe9aa6c267b19e2c9dd8fa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2463af903bf593c6cd5b062d8b06653806e0cc99e8d458cdcfdfa57e34c3fa77",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2017-07-07T09:16:34Z",
    "title_canon_sha256": "df31975141b2cf9bfeccec4a125aac384189c907c132369a277e487f61cf85e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02090",
    "kind": "arxiv",
    "version": 1
  }
}