Pith Number

pith:6C6GE4DP

pith:2019:6C6GE4DPKV5ON4HNPQ6WMBMKOF

not attested not anchored not stored refs pending

Existence and nonexistence of HOMO-LUMO excitations in Kohn-Sham density functional theory

Benedikt Graswald, Gero Friesecke

arxiv:1907.00064 v1 · 2019-06-05 · physics.chem-ph · 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{6C6GE4DPKV5ON4HNPQ6WMBMKOF}

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	2026-05-17T23:41:57.565699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0bc62706f557ae6f0ed7c3d66058a7168c05f093e733605b44a96af2910d280

Aliases

arxiv: 1907.00064 · arxiv_version: 1907.00064v1 · doi: 10.48550/arxiv.1907.00064 · pith_short_12: 6C6GE4DPKV5O · pith_short_16: 6C6GE4DPKV5ON4HN · pith_short_8: 6C6GE4DP

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/6C6GE4DPKV5ON4HNPQ6WMBMKOF \
  | 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: f0bc62706f557ae6f0ed7c3d66058a7168c05f093e733605b44a96af2910d280

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "580c6f3dfffd1e9c238c7ea6bf345eccd5e247b6702c38dcb07fdaf5613914d8",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2019-06-05T20:24:27Z",
    "title_canon_sha256": "7ffbbb31fa3eaff9023e35b3de3dccfee4a75fc3072a5bc3ce7e200c47a6caae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00064",
    "kind": "arxiv",
    "version": 1
  }
}