Pith Number

pith:L3M23HGB

pith:2014:L3M23HGBCQT6ZTIUN3C5JO6Y7K

not attested not anchored not stored refs pending

Faster SVD-Truncated Least-Squares Regression

Christos Boutsidis, Malik Magdon-Ismail

arxiv:1401.0417 v2 · 2014-01-02 · cs.DS · math.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{L3M23HGBCQT6ZTIUN3C5JO6Y7K}

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	2026-05-18T02:50:58.630734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ed9ad9cc11427eccd146ec5d4bbd8faa31f2af05ff7e076d5ac79e9ba219bfc

Aliases

arxiv: 1401.0417 · arxiv_version: 1401.0417v2 · doi: 10.48550/arxiv.1401.0417 · pith_short_12: L3M23HGBCQT6 · pith_short_16: L3M23HGBCQT6ZTIU · pith_short_8: L3M23HGB

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/L3M23HGBCQT6ZTIUN3C5JO6Y7K \
  | 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: 5ed9ad9cc11427eccd146ec5d4bbd8faa31f2af05ff7e076d5ac79e9ba219bfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bff0737ef0ee8792f5e9c7522dabf93433c12afb10aa5770c0bebd9739cb5c4",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-01-02T11:19:11Z",
    "title_canon_sha256": "2da2a849c0ce61e8c3e1b9cbb8e4195b8cdadcdb0fd4dcea27dd73f69770decb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0417",
    "kind": "arxiv",
    "version": 2
  }
}