Pith Number

pith:4HPEIGWF

pith:2026:4HPEIGWFGYWHLPTMU5SNKZIU2E

not attested not anchored not stored refs pending

FMO-xTB: Fragment molecular orbital method with GFN1-xTB for large-scale quantum-mechanical simulations

Richard Einsele, Roland Mitric

arxiv:2606.28022 v1 · 2026-06-26 · 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{4HPEIGWFGYWHLPTMU5SNKZIU2E}

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	2026-06-29T01:14:55.402428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1de441ac5362c75be6ca764d56514d13751157af81ec5db92f5ed8ada0361dd

Aliases

arxiv: 2606.28022 · arxiv_version: 2606.28022v1 · doi: 10.48550/arxiv.2606.28022 · pith_short_12: 4HPEIGWFGYWH · pith_short_16: 4HPEIGWFGYWHLPTM · pith_short_8: 4HPEIGWF

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/4HPEIGWFGYWHLPTMU5SNKZIU2E \
  | 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: e1de441ac5362c75be6ca764d56514d13751157af81ec5db92f5ed8ada0361dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc99a0e108f19373a799ee283ec30d83278c640ed28015fa7a7b9c2c03bf78a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2026-06-26T12:26:04Z",
    "title_canon_sha256": "2ec0175e38401c68ec8fe22d1dfe9c3481020af8f66971b89de17c61dc5aeb8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.28022",
    "kind": "arxiv",
    "version": 1
  }
}