Pith Number

pith:2MJQKJ7G

pith:2021:2MJQKJ7GVOGLATPYE5QHS3GVDG

not attested not anchored not stored refs pending

Streaming k-PCA: Efficient guarantees for Oja's algorithm, beyond rank-one updates

De Huang, Jonathan Niles-Weed, Rachel Ward

arxiv:2102.03646 v1 · 2021-02-06 · cs.DS · cs.LG · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2MJQKJ7GVOGLATPYE5QHS3GVDG}

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.

Cited by

1 paper in Pith

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

Receipt and verification

First computed	2026-07-05T02:13:25.783865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3130527e6ab8cb04df82760796cd5199eb5652eaf0470ba0b39183f2b7b077c

Aliases

arxiv: 2102.03646 · arxiv_version: 2102.03646v1 · doi: 10.48550/arxiv.2102.03646 · pith_short_12: 2MJQKJ7GVOGL · pith_short_16: 2MJQKJ7GVOGLATPY · pith_short_8: 2MJQKJ7G

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/2MJQKJ7GVOGLATPYE5QHS3GVDG \
  | 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: d3130527e6ab8cb04df82760796cd5199eb5652eaf0470ba0b39183f2b7b077c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1dbeeab6f1d2c1cded959f0fe1b25238c2c39405bc7d4a9e9d1e3582256a154",
    "cross_cats_sorted": [
      "cs.LG",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2021-02-06T19:21:24Z",
    "title_canon_sha256": "0a4a20c2845f9e11ecd249e395fb8e6b32ea2de07b245a6a4f7acc583c3e1e9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.03646",
    "kind": "arxiv",
    "version": 1
  }
}