Pith Number

pith:RFBXY45Y

pith:2026:RFBXY45YDQJLAZA2EKT4ZDTKOD

not attested not anchored not stored refs pending

Sum-of-Squares Degree Barriers for the Reweighted-Hinge Method in Robust Halfspace Learning: A Christoffel-Function Characterization

Xiaoyu Li

arxiv:2606.17215 v1 · 2026-06-15 · cs.LG · cs.DS · 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{RFBXY45YDQJLAZA2EKT4ZDTKOD}

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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.

Cited by

1 paper in Pith

The Exact Worst-Case Tail Probability under Bounded Kurtosis

Receipt and verification

First computed	2026-06-19T16:10:06.182243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89437c73b81c12b0641a22a7cc8e6a70f1eb0a4b0f83c112c6e6f3d4dd4c1800

Aliases

arxiv: 2606.17215 · arxiv_version: 2606.17215v1 · doi: 10.48550/arxiv.2606.17215 · pith_short_12: RFBXY45YDQJL · pith_short_16: RFBXY45YDQJLAZA2 · pith_short_8: RFBXY45Y

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/RFBXY45YDQJLAZA2EKT4ZDTKOD \
  | 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: 89437c73b81c12b0641a22a7cc8e6a70f1eb0a4b0f83c112c6e6f3d4dd4c1800

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4edd6cc936eeb8caeea8e01d164ebe0e18e4f17a704a0d37d65599b1cfff8655",
    "cross_cats_sorted": [
      "cs.DS",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-15T18:56:27Z",
    "title_canon_sha256": "ecc8c3e2b505cfda3d5390913f73cd74a02a968932e579fa9f7397c6cef2112d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.17215",
    "kind": "arxiv",
    "version": 1
  }
}