Pith Number

pith:WW4ZPYKX

pith:2015:WW4ZPYKX3WJQOHLHEPB2A67C4K

not attested not anchored not stored refs pending

Ground-State Quantum-Electrodynamical Density-Functional Theory

M. Ruggenthaler

arxiv:1509.01417 v2 · 2015-09-04 · quant-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{WW4ZPYKX3WJQOHLHEPB2A67C4K}

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.

Cited by

2 papers in Pith

Perspective on Moreau-Yosida Regularization in Density-Functional Theory

The coherent-state transformation in quantum electrodynamics coupled cluster theory

Receipt and verification

First computed	2026-05-18T00:38:40.151453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5b997e157dd93071d6723c3a07be2e28b8f7d72a1b342bf11dbb71b078a0e2a

Aliases

arxiv: 1509.01417 · arxiv_version: 1509.01417v2 · doi: 10.48550/arxiv.1509.01417 · pith_short_12: WW4ZPYKX3WJQ · pith_short_16: WW4ZPYKX3WJQOHLH · pith_short_8: WW4ZPYKX

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/WW4ZPYKX3WJQOHLHEPB2A67C4K \
  | 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: b5b997e157dd93071d6723c3a07be2e28b8f7d72a1b342bf11dbb71b078a0e2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f39ef39bcd13a4d56d254678f3cc946fd88823f077d6f45d3ccf2d9ed5e9ba85",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-09-04T11:49:38Z",
    "title_canon_sha256": "1566b23997deb5cc1658890e1c1c680df0df98c27729ae9c26a35f184a687486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01417",
    "kind": "arxiv",
    "version": 2
  }
}