Pith Number

pith:BVZ42UD7

pith:2021:BVZ42UD7EWC663EPCBDHITNZFD

not attested not anchored not stored refs pending

Molecular Energy Learning Using Alternative Blackbox Matrix-Matrix Multiplication Algorithm for Exact Gaussian Process

Jiace Sun, Lixue Cheng, Thomas F. Miller III

arxiv:2109.09817 v1 · 2021-09-20 · physics.chem-ph · cs.LG · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BVZ42UD7EWC663EPCBDHITNZFD}

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	2026-07-05T05:54:26.483399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d73cd507f2585ef6c8f1046744db928f378a88f64a10ba78d63c27fa02563ba

Aliases

arxiv: 2109.09817 · arxiv_version: 2109.09817v1 · doi: 10.48550/arxiv.2109.09817 · pith_short_12: BVZ42UD7EWC6 · pith_short_16: BVZ42UD7EWC663EP · pith_short_8: BVZ42UD7

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/BVZ42UD7EWC663EPCBDHITNZFD \
  | 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: 0d73cd507f2585ef6c8f1046744db928f378a88f64a10ba78d63c27fa02563ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "508f7a6bf464b478916685b62b00493334a8ce9b473475fbe152be7283ab324f",
    "cross_cats_sorted": [
      "cs.LG",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2021-09-20T19:59:06Z",
    "title_canon_sha256": "30e608cf61e708a0af248c6ddd15935224a50e37c196b785d9e06798cffff478"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.09817",
    "kind": "arxiv",
    "version": 1
  }
}