Pith Number

pith:74UGUQJM

pith:2026:74UGUQJMRL7D5J7GOXV6QTGTON

not attested not anchored not stored refs pending

Data eccentricity, asymptotics of Gaussian RBF reproducing kernel Hilbert space, and kernel PCA

Sergio A. Alvarez

arxiv:2607.21823 v1 · 2026-07-23 · 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{74UGUQJMRL7D5J7GOXV6QTGTON}

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	2026-07-27T00:20:22.758972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff286a412c8afe3ea7e675ebe84cd3737b215455b3967c2da170fb3342dcb36e

Aliases

arxiv: 2607.21823 · arxiv_version: 2607.21823v1 · doi: 10.48550/arxiv.2607.21823 · pith_short_12: 74UGUQJMRL7D · pith_short_16: 74UGUQJMRL7D5J7G · pith_short_8: 74UGUQJM

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/74UGUQJMRL7D5J7GOXV6QTGTON \
  | 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: ff286a412c8afe3ea7e675ebe84cd3737b215455b3967c2da170fb3342dcb36e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a74df6de0314a15fb46b7de48ce3c35af85c4ab15159f632dd1b307751efa90c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-23T21:18:41Z",
    "title_canon_sha256": "d8743b94af1e32f096d854fa06ba6ec59b6f42ceb5afb9dac1b9212e6ad4858d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21823",
    "kind": "arxiv",
    "version": 1
  }
}