Pith Number

pith:NSOZSLFM

pith:2014:NSOZSLFM66ZLRJXJUUBLPHTCLM

not attested not anchored not stored refs pending

Learning Latent Variable Gaussian Graphical Models

Alfred O. Hero III, Brian Eriksson, Zhaoshi Meng

arxiv:1406.2721 v1 · 2014-06-10 · stat.ML · cs.LG · math.ST · stat.TH

Open paper page JSON Open Graph Bundle Merged state 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

✓ 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	2026-05-18T02:49:55.330498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c9d992cacf7b2b8a6e9a502b79e625b0694c5ed49cd1666dd79deb5cc634bc0

Aliases

arxiv: 1406.2721 · arxiv_version: 1406.2721v1 · doi: 10.48550/arxiv.1406.2721 · pith_short_12: NSOZSLFM66ZL · pith_short_16: NSOZSLFM66ZLRJXJ · pith_short_8: NSOZSLFM

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/NSOZSLFM66ZLRJXJUUBLPHTCLM \
  | 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: 6c9d992cacf7b2b8a6e9a502b79e625b0694c5ed49cd1666dd79deb5cc634bc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18313fb7ed4ea053917820123ea14e9f7acf6e08641194f5fed1b9cbbfda8fa5",
    "cross_cats_sorted": [
      "cs.LG",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2014-06-10T21:03:22Z",
    "title_canon_sha256": "d41349e79cbdc8c43cbae152b2c4f297cd675601626c19b2de8296d8f65bc0fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2721",
    "kind": "arxiv",
    "version": 1
  }
}