Pith Number

pith:4VZA2QUZ

pith:2024:4VZA2QUZYSIL32DGHDHAUYGDZI

not attested not anchored not stored refs pending

X-ray Absorption Spectra for Aqueous Ammonia and Ammonium: Quantum Mechanical versus Molecular Mechanical Embedding Schemes

Alexander C. Paul, Henrik Koch, Michael Odelius, Peter Reinholdt, Regina Paul (n\'ee Matveeva), Sarai Dery Folkestad, Sonia Coriani

arxiv:2401.16946 v1 · 2024-01-30 · 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{4VZA2QUZYSIL32DGHDHAUYGDZI}

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	2026-07-05T07:39:17.169151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5720d4299c490bde86638ce0a60c3ca18af1088752b3960bf798d5296804070

Aliases

arxiv: 2401.16946 · arxiv_version: 2401.16946v1 · doi: 10.48550/arxiv.2401.16946 · pith_short_12: 4VZA2QUZYSIL · pith_short_16: 4VZA2QUZYSIL32DG · pith_short_8: 4VZA2QUZ

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/4VZA2QUZYSIL32DGHDHAUYGDZI \
  | 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: e5720d4299c490bde86638ce0a60c3ca18af1088752b3960bf798d5296804070

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "741d95bff8ce56c300f6cba23025d71a3b651c62180a93b21286080ef0e1123a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2024-01-30T12:19:24Z",
    "title_canon_sha256": "4153931266e2d24d19de98942ef79c7e1823076f44d49e81aeb84a644c4166a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2401.16946",
    "kind": "arxiv",
    "version": 1
  }
}