Pith Number

pith:ZN2Z4JUE

pith:2016:ZN2Z4JUER7E27QJAKJMVWP7RII

not attested not anchored not stored refs pending

Randomized algorithms for distributed computation of principal component analysis and singular value decomposition

Huamin Li, Mark Tygert, Yuval Kluger

arxiv:1612.08709 v4 · 2016-12-27 · cs.DC · cs.NA · math.NA · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZN2Z4JUER7E27QJAKJMVWP7RII}

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	2026-07-05T08:05:36.300217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb759e26848fc9afc12052595b3ff1421a32bcb669f9a6501bb2f4a057c0bcab

Aliases

arxiv: 1612.08709 · arxiv_version: 1612.08709v4 · doi: 10.48550/arxiv.1612.08709 · pith_short_12: ZN2Z4JUER7E2 · pith_short_16: ZN2Z4JUER7E27QJA · pith_short_8: ZN2Z4JUE

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/ZN2Z4JUER7E27QJAKJMVWP7RII \
  | 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: cb759e26848fc9afc12052595b3ff1421a32bcb669f9a6501bb2f4a057c0bcab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1efba838c9c2ccc1417c155f5e6997dfadd034143f1bb560b0b86801e8431098",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2016-12-27T19:06:13Z",
    "title_canon_sha256": "dde44abf4463d25883317103a874c01ce6d5a958b127b22065124d5e284193f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.08709",
    "kind": "arxiv",
    "version": 4
  }
}