Pith Number

pith:2UAYS2RM

pith:2017:2UAYS2RMFALDIND2GGO5AVZMR3

not attested not anchored not stored refs pending

Learning the Kernel for Classification and Regression

Chen Li, Luca Venturi, Ruitu Xu

arxiv:1712.08597 v2 · 2017-12-22 · 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{2UAYS2RMFALDIND2GGO5AVZMR3}

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	2026-05-18T00:27:17.204041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d501896a2c281634347a319dd0572c8ec5b3310760041958be68e9cd3b9ff4ce

Aliases

arxiv: 1712.08597 · arxiv_version: 1712.08597v2 · doi: 10.48550/arxiv.1712.08597 · pith_short_12: 2UAYS2RMFALD · pith_short_16: 2UAYS2RMFALDIND2 · pith_short_8: 2UAYS2RM

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/2UAYS2RMFALDIND2GGO5AVZMR3 \
  | 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: d501896a2c281634347a319dd0572c8ec5b3310760041958be68e9cd3b9ff4ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e387523de85e0e5efe037eafe12bd086d2fddab906178dd6677f3b42c965239e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2017-12-22T17:55:28Z",
    "title_canon_sha256": "9afa453b0cffc833ded31591d06e2131ab95899abdc1bf21956657744c22cf6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.08597",
    "kind": "arxiv",
    "version": 2
  }
}