Pith Number

pith:WSKEXCLU

pith:2020:WSKEXCLUYVTNGGFIFB3GJPQBJK

not attested not anchored not stored refs pending

Low-rank matrix estimation in multi-response regression with measurement errors: Statistical and computational guarantees

Dongya Wu, Xin Li

arxiv:2012.05432 v3 · 2020-12-10 · math.ST · stat.ME · 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{WSKEXCLUYVTNGGFIFB3GJPQBJK}

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	2026-07-05T04:58:00.339800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4944b8974c566d318a8287664be014a8431648b74410fadadd80ca96b843c90

Aliases

arxiv: 2012.05432 · arxiv_version: 2012.05432v3 · doi: 10.48550/arxiv.2012.05432 · pith_short_12: WSKEXCLUYVTN · pith_short_16: WSKEXCLUYVTNGGFI · pith_short_8: WSKEXCLU

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/WSKEXCLUYVTNGGFIFB3GJPQBJK \
  | 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: b4944b8974c566d318a8287664be014a8431648b74410fadadd80ca96b843c90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0738ab7846664ad8c5ee3b8336b67795b67d65b28a2bef445ec8cfd92f53e84e",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2020-12-10T03:03:20Z",
    "title_canon_sha256": "8e6806f5d5597a15995cc0a039b7dbfaf78fd7a0eff8851684c5f68e87dec23f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.05432",
    "kind": "arxiv",
    "version": 3
  }
}