Pith Number

pith:GXVI7SDD

pith:2013:GXVI7SDDZH67EYCLYKDTNDKWDA

not attested not anchored not stored refs pending

Cross-covariance modelling via DAGs with hidden variables

Jacob A. Wegelin, Thomas S. Richardson

arxiv:1301.2316 v1 · 2013-01-10 · 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{GXVI7SDDZH67EYCLYKDTNDKWDA}

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	2026-05-18T03:36:45.332374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35ea8fc863c9fdf2604bc287368d56181c684c2de36b7f2e95151bad5c9c681b

Aliases

arxiv: 1301.2316 · arxiv_version: 1301.2316v1 · doi: 10.48550/arxiv.1301.2316 · pith_short_12: GXVI7SDDZH67 · pith_short_16: GXVI7SDDZH67EYCL · pith_short_8: GXVI7SDD

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/GXVI7SDDZH67EYCLYKDTNDKWDA \
  | 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: 35ea8fc863c9fdf2604bc287368d56181c684c2de36b7f2e95151bad5c9c681b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "407df28eb3b1b82f199389d83b14cb3117768d1bd06003d68d693c0fd4355099",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-01-10T16:26:57Z",
    "title_canon_sha256": "15fb1421eda51f28228cca65060f60920a43a18bb90502d7e3c651a61b88c2f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2316",
    "kind": "arxiv",
    "version": 1
  }
}