Pith Number

pith:B6VPRKIQ

pith:2019:B6VPRKIQZMV7YH3QOLLUSSAM5O

not attested not anchored not stored refs pending

Fast Multi-Class Probabilistic Classifier by Sparse Non-parametric Density Estimation

Wan-Ping Nicole Chen, Yuan-chin Ivan Chang

arxiv:1901.01000 v1 · 2019-01-04 · 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{B6VPRKIQZMV7YH3QOLLUSSAM5O}

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	2026-05-17T23:56:57.449748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0faaf8a910cb2bfc1f7072d749480ceb91d901e47344e1e7cc82a4562a3def01

Aliases

arxiv: 1901.01000 · arxiv_version: 1901.01000v1 · doi: 10.48550/arxiv.1901.01000 · pith_short_12: B6VPRKIQZMV7 · pith_short_16: B6VPRKIQZMV7YH3Q · pith_short_8: B6VPRKIQ

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/B6VPRKIQZMV7YH3QOLLUSSAM5O \
  | 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: 0faaf8a910cb2bfc1f7072d749480ceb91d901e47344e1e7cc82a4562a3def01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1f82b36d7f9f4f70f22733bfb1a0015531e18f44e5df5e000185ba5522c0585",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-01-04T07:16:12Z",
    "title_canon_sha256": "a270618a242e37d2283ec6e586902adbf97443a652be9311e1cd51a9686b0352"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01000",
    "kind": "arxiv",
    "version": 1
  }
}