Pith Number

pith:5NVOEO5F

pith:2015:5NVOEO5FQCH6ZF3U6WG5BJJE2R

not attested not anchored not stored refs pending

Electronic Spectra from TDDFT and Machine Learning in Chemical Space

Enrico Tapavicza, Mia Hartmann, O. Anatole von Lilienfeld, Raghunathan Ramakrishnan

arxiv:1504.01966 v2 · 2015-04-08 · 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{5NVOEO5FQCH6ZF3U6WG5BJJE2R}

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	2026-05-18T01:31:39.743663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb6ae23ba5808fec9774f58dd0a524d45038e014227531edd827a7f056de0a09

Aliases

arxiv: 1504.01966 · arxiv_version: 1504.01966v2 · doi: 10.48550/arxiv.1504.01966 · pith_short_12: 5NVOEO5FQCH6 · pith_short_16: 5NVOEO5FQCH6ZF3U · pith_short_8: 5NVOEO5F

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/5NVOEO5FQCH6ZF3U6WG5BJJE2R \
  | 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: eb6ae23ba5808fec9774f58dd0a524d45038e014227531edd827a7f056de0a09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "509bc4313cd90d9be2bcc826f305ad9693b63607ae7740d1a24244c39a6ac892",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2015-04-08T13:50:12Z",
    "title_canon_sha256": "bb3c2eecc09b4ed7d69011ed2f7759107ad9e424a5881740b9489412489a4b65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01966",
    "kind": "arxiv",
    "version": 2
  }
}