Pith Number

pith:AYRWQE5P

pith:2006:AYRWQE5PQKWUZJZ26KVST3P7EY

not attested not anchored not stored refs pending

Laplacian-level density functionals for the kinetic energy density and exchange-correlation energy

John P. Perdew, Lucian A. Constantin

arxiv:cond-mat/0612430 v1 · 2006-12-16 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AYRWQE5PQKWUZJZ26KVST3P7EY}

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	2026-05-18T01:39:38.706114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06236813af82ad4ca73af2ab29edff26147a5f99c6dc89688c45737f2b343fce

Aliases

arxiv: cond-mat/0612430 · arxiv_version: cond-mat/0612430v1 · doi: 10.48550/arxiv.cond-mat/0612430 · pith_short_12: AYRWQE5PQKWU · pith_short_16: AYRWQE5PQKWUZJZ2 · pith_short_8: AYRWQE5P

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/AYRWQE5PQKWUZJZ26KVST3P7EY \
  | 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: 06236813af82ad4ca73af2ab29edff26147a5f99c6dc89688c45737f2b343fce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bfc4569fd9ebd7cd17dcac1883a8283494df17b92bc3ffb4020949330383caf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2006-12-16T18:08:41Z",
    "title_canon_sha256": "807b5532b64a234985498e0a3ab05fd1d5ce8d9e47786abc474381a5e0e99bd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0612430",
    "kind": "arxiv",
    "version": 1
  }
}