Pith Number

pith:2AZDGILT

pith:2020:2AZDGILT62YMU6ZKR3VTBEYUGC

not attested not anchored not stored refs pending

Efficient implementation of the superposition of atomic potentials initial guess for electronic structure calculations in Gaussian basis sets

Eberhard Engel, Lucas Visscher, Susi Lehtola

arxiv:2002.02587 v2 · 2020-02-07 · physics.comp-ph · physics.atom-ph · physics.chem-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{2AZDGILT62YMU6ZKR3VTBEYUGC}

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	2026-07-05T00:54:23.482806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d032332173f6b0ca7b2a8eeb3093143089a9f94d78520a12d93aceb1044a7c15

Aliases

arxiv: 2002.02587 · arxiv_version: 2002.02587v2 · doi: 10.48550/arxiv.2002.02587 · pith_short_12: 2AZDGILT62YM · pith_short_16: 2AZDGILT62YMU6ZK · pith_short_8: 2AZDGILT

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/2AZDGILT62YMU6ZKR3VTBEYUGC \
  | 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: d032332173f6b0ca7b2a8eeb3093143089a9f94d78520a12d93aceb1044a7c15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd6701719b87de37d48822974f37cca59f8ae5807fa5a60bb0b6b351c179942c",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2020-02-07T02:20:03Z",
    "title_canon_sha256": "5083f7643fa82c59b86873e7a81472525bd3c709c747828396c0ca9e89a8ec1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.02587",
    "kind": "arxiv",
    "version": 2
  }
}