Pith Number

pith:C6JA7S6J

pith:2018:C6JA7S6JC674DY7LEUUI3Q6OUT

not attested not anchored not stored refs pending

A Study of Clustering Techniques and Hierarchical Matrix Formats for Kernel Ridge Regression

Elizaveta Rebrova, Gustavo Chavez, Pieter Ghysels, Xiaoye Sherry Li, Yang Liu

arxiv:1803.10274 v1 · 2018-03-27 · cs.LG · stat.ML

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C6JA7S6JC674DY7LEUUI3Q6OUT}

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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	2026-05-18T00:19:55.966083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17920fcbc917bfc1e3eb25288dc3cea4d105fce9ca53a6c06116671f4ab4d1b8

Aliases

arxiv: 1803.10274 · arxiv_version: 1803.10274v1 · doi: 10.48550/arxiv.1803.10274 · pith_short_12: C6JA7S6JC674 · pith_short_16: C6JA7S6JC674DY7L · pith_short_8: C6JA7S6J

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/C6JA7S6JC674DY7LEUUI3Q6OUT \
  | 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: 17920fcbc917bfc1e3eb25288dc3cea4d105fce9ca53a6c06116671f4ab4d1b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2f79f1627a8777d5e35b2bb0e4c11fa133376ae504454cbcac899a773d6899d",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-03-27T19:04:52Z",
    "title_canon_sha256": "19e1e31708ffb44c428afdafbdf5a60816c4c5630a1050914725f52862fbf800"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.10274",
    "kind": "arxiv",
    "version": 1
  }
}