Pith Number

pith:5XDULTMF

pith:2025:5XDULTMF4MWO65BSG6HMAF76AA

not attested not anchored not stored refs pending

Beyond Sin-Squared Error: Linear-Time Entrywise Uncertainty Quantification for Streaming PCA

Purnamrita Sarkar, Shourya Pandey, Syamantak Kumar

arxiv:2506.12655 v2 · 2025-06-14 · math.ST · cs.LG · stat.ML · 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{5XDULTMF4MWO65BSG6HMAF76AA}

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	2026-07-05T11:39:55.155585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edc745cd85e32cef7432378ec017fe00117d1d36e6e94722fc4468fae7bb394c

Aliases

arxiv: 2506.12655 · arxiv_version: 2506.12655v2 · doi: 10.48550/arxiv.2506.12655 · pith_short_12: 5XDULTMF4MWO · pith_short_16: 5XDULTMF4MWO65BS · pith_short_8: 5XDULTMF

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/5XDULTMF4MWO65BSG6HMAF76AA \
  | 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: edc745cd85e32cef7432378ec017fe00117d1d36e6e94722fc4468fae7bb394c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37f91b1e506668b9acf598f77ea2cc0ea35035cbb2751c00e766fad50e3d8c35",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2025-06-14T22:50:54Z",
    "title_canon_sha256": "4feb7099d3d5a0671b73a8bc80fc642fc370969bc417c22724820cc0a28802b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.12655",
    "kind": "arxiv",
    "version": 2
  }
}