Pith Number

pith:XZKS7ES2

pith:2019:XZKS7ES2DXXKNTMEVM2YBH6AKZ

not attested not anchored not stored refs pending

Machine Learning the Physical Non-Local Exchange-Correlation Functional of Density-Functional Theory

Carlos L. Benavides-Riveros, Jonathan Schmidt, Miguel A. L. Marques

arxiv:1908.06198 v2 · 2019-08-16 · physics.comp-ph · cond-mat.str-el · 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{XZKS7ES2DXXKNTMEVM2YBH6AKZ}

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	2026-07-05T00:10:54.265916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be552f925a1deea6cd84ab35809fc05669876d40547af55b3bb20878523d1531

Aliases

arxiv: 1908.06198 · arxiv_version: 1908.06198v2 · doi: 10.48550/arxiv.1908.06198 · pith_short_12: XZKS7ES2DXXK · pith_short_16: XZKS7ES2DXXKNTME · pith_short_8: XZKS7ES2

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/XZKS7ES2DXXKNTMEVM2YBH6AKZ \
  | 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: be552f925a1deea6cd84ab35809fc05669876d40547af55b3bb20878523d1531

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d370efc98c59b1e0bce26e656c5266899e6d261e36a7839b9143e7950468496e",
    "cross_cats_sorted": [
      "cond-mat.str-el",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2019-08-16T22:39:44Z",
    "title_canon_sha256": "a61eb65c3dd1352c9b62eea550f14cc5b8ca9a5b30bd322ae94116c5cb219cbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06198",
    "kind": "arxiv",
    "version": 2
  }
}