Pith Number

pith:V2GHFOO3

pith:2017:V2GHFOO3YAOQO6QB55QN5BXFO2

not attested not anchored not stored refs pending

Supervised Learning with Indefinite Topological Kernels

Pierpaolo Brutti, Tullia Padellini

arxiv:1709.07100 v1 · 2017-09-20 · stat.ML · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V2GHFOO3YAOQO6QB55QN5BXFO2}

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	2026-05-18T00:34:36.565918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae8c72b9dbc01d077a01ef60de86e5769d8b0c6d1437bdc1f18f4dac18355487

Aliases

arxiv: 1709.07100 · arxiv_version: 1709.07100v1 · doi: 10.48550/arxiv.1709.07100 · pith_short_12: V2GHFOO3YAOQ · pith_short_16: V2GHFOO3YAOQO6QB · pith_short_8: V2GHFOO3

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/V2GHFOO3YAOQO6QB55QN5BXFO2 \
  | 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: ae8c72b9dbc01d077a01ef60de86e5769d8b0c6d1437bdc1f18f4dac18355487

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca7512546a8846e173646aa6f114fd1a33053b6098edc70ab84fe22b7b290819",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-09-20T23:05:00Z",
    "title_canon_sha256": "cec9e06b98de846ab4cd823804a661f8c62d82cee207c480a7eb8fa5a574a272"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07100",
    "kind": "arxiv",
    "version": 1
  }
}