Pith Number

pith:47KHNEZV

pith:2019:47KHNEZVXM4X27YDSKNAO5OPY6

not attested not anchored not stored refs pending

Regression-clustering for Improved Accuracy and Training Cost with Molecular-Orbital-Based Machine Learning

Lixue Cheng, Matthew Welborn, Nikola B. Kovachki, Thomas F. Miller III

arxiv:1909.02041 v4 · 2019-09-04 · physics.chem-ph · 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{47KHNEZVXM4X27YDSKNAO5OPY6}

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	2026-07-05T05:54:25.125827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7d4769335bb397d7f03929a0775cfc7969be86060c4c818fc4ac3b4061d5ee1

Aliases

arxiv: 1909.02041 · arxiv_version: 1909.02041v4 · doi: 10.48550/arxiv.1909.02041 · pith_short_12: 47KHNEZVXM4X · pith_short_16: 47KHNEZVXM4X27YD · pith_short_8: 47KHNEZV

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/47KHNEZVXM4X27YDSKNAO5OPY6 \
  | 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: e7d4769335bb397d7f03929a0775cfc7969be86060c4c818fc4ac3b4061d5ee1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a00d9f280bddf5ba03f05ac96e0b345d6848b8daa441e8f16c2566c355974e4",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2019-09-04T18:29:30Z",
    "title_canon_sha256": "7934f6e432741b9229aec86eef1935a51a605c94414c50874f792fca9013a8fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02041",
    "kind": "arxiv",
    "version": 4
  }
}