Pith Number

pith:NZ7ZN7ZI

pith:2018:NZ7ZN7ZIJZH2H7TLPAMC5B6NBI

not attested not anchored not stored refs pending

Fast yet Simple Natural-Gradient Descent for Variational Inference in Complex Models

Didrik Nielsen, Mohammad Emtiyaz Khan

arxiv:1807.04489 v2 · 2018-07-12 · stat.ML · cs.IT · cs.LG · math.IT · stat.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NZ7ZN7ZIJZH2H7TLPAMC5B6NBI}

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	2026-05-18T00:09:03.715010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e7f96ff284e4fa3fe6b78182e87cd0a108365cd7da7c6087e55ba14a9035a05

Aliases

arxiv: 1807.04489 · arxiv_version: 1807.04489v2 · doi: 10.48550/arxiv.1807.04489 · pith_short_12: NZ7ZN7ZIJZH2 · pith_short_16: NZ7ZN7ZIJZH2H7TL · pith_short_8: NZ7ZN7ZI

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/NZ7ZN7ZIJZH2H7TLPAMC5B6NBI \
  | 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: 6e7f96ff284e4fa3fe6b78182e87cd0a108365cd7da7c6087e55ba14a9035a05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac8ec80dda0311f60d679bdc4c5ce0857b8afa03ece7fea5148c4bb7d4eda8f9",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "math.IT",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-07-12T09:15:46Z",
    "title_canon_sha256": "0e835ca3efeb02f35b5f55ec6b970684897fdf58acbcff0355aee77144ec5cdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04489",
    "kind": "arxiv",
    "version": 2
  }
}