Pith Number

pith:2ZZIKVFB

pith:2026:2ZZIKVFBJK3YRRPUBY3HXRFLKM

not attested not anchored not stored refs pending

Extrapolating from Regularised Solutions for Solving Ill-Conditioned Linear Systems in Machine Learning

Chris. J. Oates, Disha Hegde, Jon Cockayne

arxiv:2606.30328 v1 · 2026-06-29 · stat.ML · cs.LG · cs.NA · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ZZIKVFBJK3YRRPUBY3HXRFLKM}

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	2026-06-30T02:18:10.520326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6728554a14ab788c5f40e367bc4ab5325b78a4a10fc07350772d6401760e861

Aliases

arxiv: 2606.30328 · arxiv_version: 2606.30328v1 · doi: 10.48550/arxiv.2606.30328 · pith_short_12: 2ZZIKVFBJK3Y · pith_short_16: 2ZZIKVFBJK3YRRPU · pith_short_8: 2ZZIKVFB

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/2ZZIKVFBJK3YRRPUBY3HXRFLKM \
  | 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: d6728554a14ab788c5f40e367bc4ab5325b78a4a10fc07350772d6401760e861

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c943458699913354476d0a7823955b0b3b4bab145a5fecb30cc935abc0462825",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-06-29T14:10:06Z",
    "title_canon_sha256": "35937d127e3881043bb4aabe3e2fa734d69e66e106b7b398a7cf64ec01d7dad0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30328",
    "kind": "arxiv",
    "version": 1
  }
}