Pith Number

pith:UJUAGEL3

pith:2026:UJUAGEL3Z3OINTPQECUA5PXMPM

not attested not anchored not stored refs pending

Debiasing Random Oblique Projections for Subsampled OLS and Fast CUR in High Dimensions

Chengmei Niu, Micha{\l} Derezi\'nski, Sachin Garg, Zhenyu Liao

arxiv:2605.24955 v1 · 2026-05-24 · math.NA · cs.NA · 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{UJUAGEL3Z3OINTPQECUA5PXMPM}

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	2026-05-26T01:04:07.504097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a26803117bcedc86cdf020a80ebeec7b24950e5228da33854508d22bf1949a95

Aliases

arxiv: 2605.24955 · arxiv_version: 2605.24955v1 · doi: 10.48550/arxiv.2605.24955 · pith_short_12: UJUAGEL3Z3OI · pith_short_16: UJUAGEL3Z3OINTPQ · pith_short_8: UJUAGEL3

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/UJUAGEL3Z3OINTPQECUA5PXMPM \
  | 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: a26803117bcedc86cdf020a80ebeec7b24950e5228da33854508d22bf1949a95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ed583046011deeba2fbf49dec8105ea76e44446357da502e19065d1d392e361",
    "cross_cats_sorted": [
      "cs.NA",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-24T09:11:53Z",
    "title_canon_sha256": "aa475d58491f574da19f592402421cf8f3a1affed41a0765f11e087633af91c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24955",
    "kind": "arxiv",
    "version": 1
  }
}