pith. sign in
Pith Number

pith:BH6DVI7F

pith:2009:BH6DVI7FZSY7QLCEJGQB5AWHNT
not attested not anchored not stored refs pending

Local Behavior of the First-Order Gradient Correction to the Thomas-Fermi Kinetic Energy Functional

David Garcia-Aldea, J. E. Alvarellos, T. Martin-Blas

arxiv:0907.1630 v1 · 2009-07-09 · cond-mat.other · physics.chem-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{BH6DVI7FZSY7QLCEJGQB5AWHNT}

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 2026-05-18T02:13:04.166505Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

09fc3aa3e5ccb1f82c4449a01e82c76cc8001990d4e71b0bdef893387d7a21c4

Aliases

arxiv: 0907.1630 · arxiv_version: 0907.1630v1 · doi: 10.48550/arxiv.0907.1630 · pith_short_12: BH6DVI7FZSY7 · pith_short_16: BH6DVI7FZSY7QLCE · pith_short_8: BH6DVI7F
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/BH6DVI7FZSY7QLCEJGQB5AWHNT \
  | 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: 09fc3aa3e5ccb1f82c4449a01e82c76cc8001990d4e71b0bdef893387d7a21c4
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "9f48099763dc6d4ad707a297d28daf147a9691afd531c534e94d4ef5c662a3ee",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2009-07-09T17:37:46Z",
    "title_canon_sha256": "cf8efb498ec4b8b03abaebeb6dcbfa9b98d6873adbd5408779469b79486ea566"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1630",
    "kind": "arxiv",
    "version": 1
  }
}