Pith Number

pith:VCTTDJQZ

pith:2018:VCTTDJQZ4HOX6MYUCHIDFUFPKV

not attested not anchored not stored refs pending

Fast computation of the principal components of genotype matrices in Julia

Alan Edelman, Andreas Noack, Jiahao Chen

arxiv:1808.03374 v1 · 2018-08-09 · math.NA · cs.CE · q-bio.GN · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VCTTDJQZ4HOX6MYUCHIDFUFPKV}

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	2026-05-18T00:08:25.244131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8a731a619e1dd7f331411d032d0af554414947a62afd326b778f628b5981e66

Aliases

arxiv: 1808.03374 · arxiv_version: 1808.03374v1 · doi: 10.48550/arxiv.1808.03374 · pith_short_12: VCTTDJQZ4HOX · pith_short_16: VCTTDJQZ4HOX6MYU · pith_short_8: VCTTDJQZ

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/VCTTDJQZ4HOX6MYUCHIDFUFPKV \
  | 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: a8a731a619e1dd7f331411d032d0af554414947a62afd326b778f628b5981e66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4dd22a760bda7123f851344175290af1699ef47460b1cefb439c3d3ca90525e",
    "cross_cats_sorted": [
      "cs.CE",
      "q-bio.GN",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-09T23:47:21Z",
    "title_canon_sha256": "79361f535c7d2940ffc9362f08b72e0c221ca4a2a350a7eae089bebbce41704e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03374",
    "kind": "arxiv",
    "version": 1
  }
}