Pith Number

pith:FP5MJTHX

pith:2014:FP5MJTHXBRRZHSLGECKE4INVHM

not attested not anchored not stored refs pending

A Hierarchical Graphical Model for Big Inverse Covariance Estimation with an Application to fMRI

Xi Luo

arxiv:1403.4698 v2 · 2014-03-19 · stat.ME · stat.AP · stat.ML

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T02:54:46.436296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bfac4ccf70c6393c96620944e21b53b1a7c06256e77eaa756c60b7ce8250a37

Aliases

arxiv: 1403.4698 · arxiv_version: 1403.4698v2 · doi: 10.48550/arxiv.1403.4698 · pith_short_12: FP5MJTHXBRRZ · pith_short_16: FP5MJTHXBRRZHSLG · pith_short_8: FP5MJTHX

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/FP5MJTHXBRRZHSLGECKE4INVHM \
  | 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: 2bfac4ccf70c6393c96620944e21b53b1a7c06256e77eaa756c60b7ce8250a37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e0bca7ca37f65157ae64ab6b8ba4368488ca5843b0994bd43f0417ad9fb74d6",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2014-03-19T05:43:43Z",
    "title_canon_sha256": "1b4fd2cf04463864ee75773d496fffcfaa217511cfa948ad812f132f4d56df9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4698",
    "kind": "arxiv",
    "version": 2
  }
}