Pith Number

pith:BRLIIAP7

pith:2025:BRLIIAP7QHL6Z4AMHHEFHQC2SI

not attested not anchored not stored refs pending

PySEQM 2.0: Accelerated Semiempirical Excited State Calculations on Graphical Processing Units

Anders M. N. Niklasson, Maksim Kulichenko, Nikita Fedik, Sergei Tretiak, Vishikh Athavale, William Colglazier

arxiv:2505.24807 v1 · 2025-05-30 · physics.chem-ph · 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{BRLIIAP7QHL6Z4AMHHEFHQC2SI}

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	2026-07-05T11:12:57.054406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c568401ff81d7ecf00c39c853c05a920ad1b923b89beb8c19c3fec1ab20f567

Aliases

arxiv: 2505.24807 · arxiv_version: 2505.24807v1 · doi: 10.48550/arxiv.2505.24807 · pith_short_12: BRLIIAP7QHL6 · pith_short_16: BRLIIAP7QHL6Z4AM · pith_short_8: BRLIIAP7

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/BRLIIAP7QHL6Z4AMHHEFHQC2SI \
  | 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: 0c568401ff81d7ecf00c39c853c05a920ad1b923b89beb8c19c3fec1ab20f567

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8245cf97f61e3c799f85a92b9b7ca93519a50c2f1eb6934c2fb958f5f58a37da",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2025-05-30T17:14:43Z",
    "title_canon_sha256": "f31dad052328107e0ec83e5a2d19fa8ef9cfa57ab41cda4ec7573ccaae2d386a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.24807",
    "kind": "arxiv",
    "version": 1
  }
}