Pith Number

pith:EMR62PT2

pith:2019:EMR62PT2QOL6LRDSPE33T6WIC4

not attested not anchored not stored refs pending

SIMPCA: A framework for rotating and sparsifying principal components

Giovanni Maria Merola

arxiv:1910.03266 v1 · 2019-10-08 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EMR62PT2QOL6LRDSPE33T6WIC4}

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	2026-07-05T00:10:19.760670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2323ed3e7a8397e5c4727937b9fac817197ed375b7dabc4244a1ec98e45538df

Aliases

arxiv: 1910.03266 · arxiv_version: 1910.03266v1 · doi: 10.48550/arxiv.1910.03266 · pith_short_12: EMR62PT2QOL6 · pith_short_16: EMR62PT2QOL6LRDS · pith_short_8: EMR62PT2

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/EMR62PT2QOL6LRDSPE33T6WIC4 \
  | 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: 2323ed3e7a8397e5c4727937b9fac817197ed375b7dabc4244a1ec98e45538df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "811bcd946a1a4efb43810aa8bb0096880954992757a397b15a04575c2955b2a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-10-08T08:17:38Z",
    "title_canon_sha256": "d56ecc454aea33d84b5e240cde946449b76789e9053a15d5b5e24083880604a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.03266",
    "kind": "arxiv",
    "version": 1
  }
}