Pith Number

pith:6TZ7VYO4

pith:2013:6TZ7VYO4H5KDEX67EUWMLLFV2S

not attested not anchored not stored refs pending

Revisiting the Nystrom Method for Improved Large-Scale Machine Learning

Alex Gittens, Michael W. Mahoney

arxiv:1303.1849 v2 · 2013-03-07 · cs.LG · cs.DS · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6TZ7VYO4H5KDEX67EUWMLLFV2S}

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	2026-05-18T03:21:54.697792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4f3fae1dc3f54325fdf252cc5acb5d49f0076a1a0efee17394a5c31247d8db4

Aliases

arxiv: 1303.1849 · arxiv_version: 1303.1849v2 · doi: 10.48550/arxiv.1303.1849 · pith_short_12: 6TZ7VYO4H5KD · pith_short_16: 6TZ7VYO4H5KDEX67 · pith_short_8: 6TZ7VYO4

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/6TZ7VYO4H5KDEX67EUWMLLFV2S \
  | 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: f4f3fae1dc3f54325fdf252cc5acb5d49f0076a1a0efee17394a5c31247d8db4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c1bf98682bb3106a5f31e36e187015999ced98d3947ecd0db193f4796ff4178",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-03-07T23:16:16Z",
    "title_canon_sha256": "929b3bba910b0b724a5cd6aaab7ca02840177662d8c925da0eeef2cd9dbeeab2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1849",
    "kind": "arxiv",
    "version": 2
  }
}