Pith Number

pith:3QGJV6GM

pith:2019:3QGJV6GMPWWJO2PLE43QQSDWE2

not attested not anchored not stored refs pending

A Formalization of The Natural Gradient Method for General Similarity Measures

Aasa Feragen, Anton Mallasto, Tom Dela Haije

arxiv:1902.08959 v1 · 2019-02-24 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3QGJV6GMPWWJO2PLE43QQSDWE2}

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	2026-05-17T23:52:47.072888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc0c9af8cc7dac9769eb27370848762684a76170f154717a420be877908255fa

Aliases

arxiv: 1902.08959 · arxiv_version: 1902.08959v1 · doi: 10.48550/arxiv.1902.08959 · pith_short_12: 3QGJV6GMPWWJ · pith_short_16: 3QGJV6GMPWWJO2PL · pith_short_8: 3QGJV6GM

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/3QGJV6GMPWWJO2PLE43QQSDWE2 \
  | 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: dc0c9af8cc7dac9769eb27370848762684a76170f154717a420be877908255fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "562df90f99b8547fc1df4b3256e69aa51e7d63c66abe15926c5123ea220b0ba6",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-02-24T15:07:31Z",
    "title_canon_sha256": "e8b966078367f65f397a5df5426721d0fc399b20972683a55301438f97807371"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08959",
    "kind": "arxiv",
    "version": 1
  }
}