Pith Number

pith:ZB7GZVN6

pith:2018:ZB7GZVN6L2CXXXVTYLQ7JMFREM

not attested not anchored not stored refs pending

Projection based embedding theory for solving Kohn-Sham density functional theory

Leonardo Zepeda-N\'u\~nez, Lin Lin

arxiv:1807.08859 v2 · 2018-07-23 · physics.comp-ph · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZB7GZVN6L2CXXXVTYLQ7JMFREM}

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	2026-05-17T23:49:03.704138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c87e6cd5be5e857bdeb3c2e1f4b0b1230093511f3f15e1ac6daa728e5fb760d8

Aliases

arxiv: 1807.08859 · arxiv_version: 1807.08859v2 · doi: 10.48550/arxiv.1807.08859 · pith_short_12: ZB7GZVN6L2CX · pith_short_16: ZB7GZVN6L2CXXXVT · pith_short_8: ZB7GZVN6

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/ZB7GZVN6L2CXXXVTYLQ7JMFREM \
  | 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: c87e6cd5be5e857bdeb3c2e1f4b0b1230093511f3f15e1ac6daa728e5fb760d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66518e15abde3f138314935899a4f3fcafe94ae78030bdbeeb18dc66c287cf22",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2018-07-23T23:42:02Z",
    "title_canon_sha256": "550f4b97417433cafbf0fd577cee884d4ffec61da02455630c9fa2929434e882"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08859",
    "kind": "arxiv",
    "version": 2
  }
}