Pith Number

pith:NCNY4ENT

pith:2010:NCNY4ENTVO5UOOSF3XOTOIEBPR

not attested not anchored not stored refs pending

f-divergence estimation and two-sample homogeneity test under semiparametric density-ratio models

Masashi Sugiyama, Taiji Suzuki, Takafumi Kanamori

arxiv:1010.4945 v1 · 2010-10-24 · 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{NCNY4ENTVO5UOOSF3XOTOIEBPR}

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	2026-05-18T04:38:49.748038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

689b8e11b3abbb473a45dddd3720817c4508228839b7c7c60ac06c2414502228

Aliases

arxiv: 1010.4945 · arxiv_version: 1010.4945v1 · doi: 10.48550/arxiv.1010.4945 · pith_short_12: NCNY4ENTVO5U · pith_short_16: NCNY4ENTVO5UOOSF · pith_short_8: NCNY4ENT

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/NCNY4ENTVO5UOOSF3XOTOIEBPR \
  | 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: 689b8e11b3abbb473a45dddd3720817c4508228839b7c7c60ac06c2414502228

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c577d3ced86cb67d9cffa36d9c601015781b6ebf9982f6e1e0e327b5d0c3036",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2010-10-24T09:11:40Z",
    "title_canon_sha256": "cc9152ea253bc3382346a3698876956cdc5398bcbeca66fbcb143f8adca3e7d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.4945",
    "kind": "arxiv",
    "version": 1
  }
}