Pith Number

pith:GG2ZB5Y4

pith:2015:GG2ZB5Y47D26HGHQJZPFJR2YHV

not attested not anchored not stored refs pending

The Fast Convergence of Incremental PCA

Akshay Balsubramani, Sanjoy Dasgupta, Yoav Freund

arxiv:1501.03796 v1 · 2015-01-15 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GG2ZB5Y47D26HGHQJZPFJR2YHV}

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	2026-05-18T02:29:17.803918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31b590f71cf8f5e398f04e5e54c7583d5ae031913f6f334e63faa26e23659810

Aliases

arxiv: 1501.03796 · arxiv_version: 1501.03796v1 · doi: 10.48550/arxiv.1501.03796 · pith_short_12: GG2ZB5Y47D26 · pith_short_16: GG2ZB5Y47D26HGHQ · pith_short_8: GG2ZB5Y4

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/GG2ZB5Y47D26HGHQJZPFJR2YHV \
  | 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: 31b590f71cf8f5e398f04e5e54c7583d5ae031913f6f334e63faa26e23659810

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4be60c92a6b63909efb2d28725b9080c9d2c90dbc08192cb9f74c9c55efa4ca2",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-01-15T20:08:49Z",
    "title_canon_sha256": "78a6b9c763565525e20f85ca50ab04ffe2067fab6ad6270d908060c1af700df1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03796",
    "kind": "arxiv",
    "version": 1
  }
}