Pith Number

pith:L34HJQNO

pith:2019:L34HJQNOFI4AYOWM2IYMWDMLSJ

not attested not anchored not stored refs pending

Representation Learning with Weighted Inner Product for Universal Approximation of General Similarities

Akifumi Okuno, Geewook Kim, Hidetoshi Shimodaira, Kazuki Fukui

arxiv:1902.10409 v2 · 2019-02-27 · 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{L34HJQNOFI4AYOWM2IYMWDMLSJ}

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	2026-05-17T23:44:29.262092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ef874c1ae2a380c3accd230cb0d8b924fa53e3b558b33c09d9df318190fbb76

Aliases

arxiv: 1902.10409 · arxiv_version: 1902.10409v2 · doi: 10.48550/arxiv.1902.10409 · pith_short_12: L34HJQNOFI4A · pith_short_16: L34HJQNOFI4AYOWM · pith_short_8: L34HJQNO

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/L34HJQNOFI4AYOWM2IYMWDMLSJ \
  | 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: 5ef874c1ae2a380c3accd230cb0d8b924fa53e3b558b33c09d9df318190fbb76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5df1e43f7c60261d43a910e96e85a71075e918aeca8f99348f7b994140d23d1d",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-02-27T09:39:18Z",
    "title_canon_sha256": "fbf46fdfd25d4fd44319216f41664540d87ce203bfd9e4a0365488d412993578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10409",
    "kind": "arxiv",
    "version": 2
  }
}