Pith Number

pith:SRSJXCY3

pith:2025:SRSJXCY3VSIGQSIHLCVSTOEWDX

not attested not anchored not stored refs pending

Optimal Linear Baseline Models for Scientific Machine Learning

Alexander DeLise, Andrea Arnold, Krish Patel, Kyle Loh, Matthias Chung, Meredith Teague

arxiv:2508.05831 v1 · 2025-08-07 · 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{SRSJXCY3VSIGQSIHLCVSTOEWDX}

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	2026-07-05T11:50:44.006430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94649b8b1bac9068490758ab29b8961dee02d1f4859116e6342bce7ab0ec7898

Aliases

arxiv: 2508.05831 · arxiv_version: 2508.05831v1 · doi: 10.48550/arxiv.2508.05831 · pith_short_12: SRSJXCY3VSIG · pith_short_16: SRSJXCY3VSIGQSIH · pith_short_8: SRSJXCY3

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/SRSJXCY3VSIGQSIHLCVSTOEWDX \
  | 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: 94649b8b1bac9068490758ab29b8961dee02d1f4859116e6342bce7ab0ec7898

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2250157da4d967fd8dd7b157e770badfdfac56f6461a4e84f132d211a68aa262",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-08-07T20:17:07Z",
    "title_canon_sha256": "b84f80c2f0a3ff74daf87ab1c974e425cd82747f89e7bf7a40da90283f933977"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.05831",
    "kind": "arxiv",
    "version": 1
  }
}