Pith Number

pith:YJ553JGC

pith:2026:YJ553JGCQCMKETDL26H4N7VNNE

not attested not anchored not stored refs pending

Sharp analysis of sketched least squares and randomized low-rank approximation

Ethan N. Epperly, Robert J. Webber

arxiv:2605.19096 v1 · 2026-05-18 · math.NA · cs.NA · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YJ553JGCQCMKETDL26H4N7VNNE}

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	2026-05-20T01:05:26.984137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c27bdda4c28098a24c6bd78fc6fead6934a6ec40d51e94b8a51b645b90cc17ee

Aliases

arxiv: 2605.19096 · arxiv_version: 2605.19096v1 · doi: 10.48550/arxiv.2605.19096 · pith_short_12: YJ553JGCQCMK · pith_short_16: YJ553JGCQCMKETDL · pith_short_8: YJ553JGC

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/YJ553JGCQCMKETDL26H4N7VNNE \
  | 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: c27bdda4c28098a24c6bd78fc6fead6934a6ec40d51e94b8a51b645b90cc17ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41199390d696e0e243e67d4d1f35388255fc38e9f4c52ed017f500d19eb73d13",
    "cross_cats_sorted": [
      "cs.NA",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-18T20:32:28Z",
    "title_canon_sha256": "320f5d1a05ad43b3b2c0e016bcbae6caae426e3be1f6c8d380a8064e3e46c517"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19096",
    "kind": "arxiv",
    "version": 1
  }
}