Pith Number

pith:RF5JZ23O

pith:2016:RF5JZ23OAQBYS7JSIU3KCWFMML

not attested not anchored not stored refs pending

Generalized Sparse Precision Matrix Selection for Fitting Multivariate Gaussian Random Fields to Large Data Sets

Enrique del Castillo, Necdet Serhat Aybat, Sam Davanloo Tajbakhsh

arxiv:1605.03267 v2 · 2016-05-11 · 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{RF5JZ23OAQBYS7JSIU3KCWFMML}

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	2026-07-05T02:05:35.410042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

897a9ceb6e0403897d324536a158ac62f54116c0ed6517300a52bf4e6d9eb79e

Aliases

arxiv: 1605.03267 · arxiv_version: 1605.03267v2 · doi: 10.48550/arxiv.1605.03267 · pith_short_12: RF5JZ23OAQBY · pith_short_16: RF5JZ23OAQBYS7JS · pith_short_8: RF5JZ23O

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/RF5JZ23OAQBYS7JSIU3KCWFMML \
  | 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: 897a9ceb6e0403897d324536a158ac62f54116c0ed6517300a52bf4e6d9eb79e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec8ca8f1f3efb96ad9b2a14ec1edfad11b14620a207c09707f57d0752bbe6de7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2016-05-11T03:10:20Z",
    "title_canon_sha256": "7f5db41135902f98268b1392f40e0cd3ddaf9ad0d02f54bb923abc0a2233a27d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03267",
    "kind": "arxiv",
    "version": 2
  }
}