Pith Number

pith:GQLQG56G

pith:2009:GQLQG56GTT3YZHBYDIJ5FVENXB

not attested not anchored not stored refs pending

Numerical analysis of the planewave discretization of orbital-free and Kohn-Sham models Part I: The Thomas-Fermi-von Weizacker model

Eric Canc\`es, Rachida Chakir, Yvon Maday

arxiv:0909.1464 v1 · 2009-09-08 · math.NA · cs.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{GQLQG56GTT3YZHBYDIJ5FVENXB}

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	2026-06-03T23:06:28.760175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34170377c69cf78c9c381a13d2d48db847eb4d2c6818b3dace7d5531d85503d7

Aliases

arxiv: 0909.1464 · arxiv_version: 0909.1464v1 · doi: 10.48550/arxiv.0909.1464 · pith_short_12: GQLQG56GTT3Y · pith_short_16: GQLQG56GTT3YZHBY · pith_short_8: GQLQG56G

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/GQLQG56GTT3YZHBYDIJ5FVENXB \
  | 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: 34170377c69cf78c9c381a13d2d48db847eb4d2c6818b3dace7d5531d85503d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4ece1760777432b862b07cc53e74803a15feeaaff715628608eb95f4102a7cd",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-09-08T11:40:17Z",
    "title_canon_sha256": "d3bb130fdf9e2fa4bfc8b882defe5d3419e6a02a92c3aaeaff79b33c83e96b6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1464",
    "kind": "arxiv",
    "version": 1
  }
}