Pith Number

pith:ROPQWZ23

pith:2019:ROPQWZ23OZ7TO23URXUZUWISLL

not attested not anchored not stored refs pending

Modular Block-diagonal Curvature Approximations for Feedforward Architectures

Felix Dangel, Philipp Hennig, Stefan Harmeling

arxiv:1902.01813 v3 · 2019-02-05 · 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{ROPQWZ23OZ7TO23URXUZUWISLL}

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	2026-07-05T00:44:24.762191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b9f0b675b767f376b748de99a59125aecbd38d4b806c4f38276ebe0ab12f35e

Aliases

arxiv: 1902.01813 · arxiv_version: 1902.01813v3 · doi: 10.48550/arxiv.1902.01813 · pith_short_12: ROPQWZ23OZ7T · pith_short_16: ROPQWZ23OZ7TO23U · pith_short_8: ROPQWZ23

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/ROPQWZ23OZ7TO23URXUZUWISLL \
  | 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: 8b9f0b675b767f376b748de99a59125aecbd38d4b806c4f38276ebe0ab12f35e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3286063112e84a099c395bd368ad5f92b28213b32c165b66275707ce5c93e4f",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-02-05T17:39:24Z",
    "title_canon_sha256": "5eadf9510bc295c2e480d0f53bc99eb3548f1aa7e405f11cde0d7b1300a7c2a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01813",
    "kind": "arxiv",
    "version": 3
  }
}