Pith Number

pith:OPNC7GQM

pith:2026:OPNC7GQMKTP4L7VKL2R22YPYXX

not attested not anchored not stored refs pending

Model-based sparse mixed-type PCA

Joni Virta, Lauri Heinonen

arxiv:2606.11887 v1 · 2026-06-10 · 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{OPNC7GQMKTP4L7VKL2R22YPYXX}

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	2026-06-11T01:10:13.899018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73da2f9a0c54dfc5feaa5ea3ad61f8bde1990d9db3961e34a3e1cc8d41b371ec

Aliases

arxiv: 2606.11887 · arxiv_version: 2606.11887v1 · doi: 10.48550/arxiv.2606.11887 · pith_short_12: OPNC7GQMKTP4 · pith_short_16: OPNC7GQMKTP4L7VK · pith_short_8: OPNC7GQM

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/OPNC7GQMKTP4L7VKL2R22YPYXX \
  | 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: 73da2f9a0c54dfc5feaa5ea3ad61f8bde1990d9db3961e34a3e1cc8d41b371ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "687a68d0862b9cb19c781165dbca7b3c9fc76352ce6640a58b36258d9b1d830c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-06-10T10:19:38Z",
    "title_canon_sha256": "107db3c5207ad5468b9ae56e52f0691e708be43059577b904216f12d0f77febe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.11887",
    "kind": "arxiv",
    "version": 1
  }
}