Pith Number

pith:27ZQ4LRF

pith:2025:27ZQ4LRFE7LMWMM7AIMJKLKBLH

not attested not anchored not stored refs pending

Linear-Response Quantum-Electrodynamical Density Functional Theory Based on Two-Component X2C Hamiltonians

Angel Rubio, Lukas Konecny, Michael Ruggenthaler, Michal Repisky, Valeriia P. Kosheleva

arxiv:2507.07198 v1 · 2025-07-09 · 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{27ZQ4LRFE7LMWMM7AIMJKLKBLH}

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	2026-07-05T11:34:32.544954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7f30e2e2527d6cb319f0218952d4159f58e9efed4431a3f4b2d2c6cda00f93e

Aliases

arxiv: 2507.07198 · arxiv_version: 2507.07198v1 · doi: 10.48550/arxiv.2507.07198 · pith_short_12: 27ZQ4LRFE7LM · pith_short_16: 27ZQ4LRFE7LMWMM7 · pith_short_8: 27ZQ4LRF

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/27ZQ4LRFE7LMWMM7AIMJKLKBLH \
  | 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: d7f30e2e2527d6cb319f0218952d4159f58e9efed4431a3f4b2d2c6cda00f93e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc090be81ca7f7265bf7a1e926eebdd6b0c53fefa8864b65b2a23f2e0adaa6bf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2025-07-09T18:14:16Z",
    "title_canon_sha256": "1e6e02bcab0fa9fe9e9b635f03e8a304d8bb5e9accedbac2741a8b97f098aa32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.07198",
    "kind": "arxiv",
    "version": 1
  }
}