Pith Number

pith:PCQZWCD6

pith:2026:PCQZWCD62BQWZE4I7YVAPTJBGH

not attested not anchored not stored refs pending

Group-Aware Matrix Estimation and Latent Subspace Recovery

Genevera I. Allen, Hamza Golubovic, Matthew Shen, Tarek M. Zikry

arxiv:2605.20559 v1 · 2026-05-19 · stat.ML · cs.LG · stat.AP · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PCQZWCD62BQWZE4I7YVAPTJBGH}

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	2026-05-21T01:04:42.422311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78a19b087ed0616c9388fe2a07cd2131d017c224523e3105660f303c275babd8

Aliases

arxiv: 2605.20559 · arxiv_version: 2605.20559v1 · doi: 10.48550/arxiv.2605.20559 · pith_short_12: PCQZWCD62BQW · pith_short_16: PCQZWCD62BQWZE4I · pith_short_8: PCQZWCD6

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/PCQZWCD62BQWZE4I7YVAPTJBGH \
  | 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: 78a19b087ed0616c9388fe2a07cd2131d017c224523e3105660f303c275babd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1cf885fb5980d27f62495125d9a0cf7a6e844091bc8b831eab9c89ff4a455ca",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.AP",
      "stat.ME"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-05-19T23:22:32Z",
    "title_canon_sha256": "e89ff0aea9dd9a40158f28dda19bd9d04b06207bf083213f3d8ab0daf368459f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20559",
    "kind": "arxiv",
    "version": 1
  }
}