Pith Number

pith:BMXHKRGC

pith:2015:BMXHKRGCJVCXFLP6SG7I34LBDC

not attested not anchored not stored refs pending

Understanding Kernel Ridge Regression: Common behaviors from simple functions to density functionals

Brandon F. Chen, John Snyder, Kevin Vu, Kieron Burke, Klaus-Robert M\"uller, Li Li, Matthias Rupp, Tarek Khelif

arxiv:1501.03854 v2 · 2015-01-16 · physics.comp-ph · cs.LG · 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{BMXHKRGCJVCXFLP6SG7I34LBDC}

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	2026-05-18T02:28:31.016841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b2e7544c24d4572adfe91be8df161188e23b741be7fe79395b2507664d18f50

Aliases

arxiv: 1501.03854 · arxiv_version: 1501.03854v2 · doi: 10.48550/arxiv.1501.03854 · pith_short_12: BMXHKRGCJVCX · pith_short_16: BMXHKRGCJVCXFLP6 · pith_short_8: BMXHKRGC

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/BMXHKRGCJVCXFLP6SG7I34LBDC \
  | 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: 0b2e7544c24d4572adfe91be8df161188e23b741be7fe79395b2507664d18f50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc618d5fc78c6bbccc6e707cc13026108a86e505d0d597896740f59d76798214",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2015-01-16T00:00:46Z",
    "title_canon_sha256": "40eeb416e9b85ca5cb50ef8fccad3059ab143bf1e4a5d4c12609b42a67f3b596"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03854",
    "kind": "arxiv",
    "version": 2
  }
}