Pith Number

pith:PMZICFB5

pith:2008:PMZICFB55NR4QLUN7OJRLZ7FJI

not attested not anchored not stored refs pending

Direct minimization for calculating invariant subspaces in density functional computations of the electronic structure

Alexej Neelov, Johannes Blauert, Reinhold Schneider, Thorsten Rohwedder

arxiv:0805.1190 v1 · 2008-05-08 · 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{PMZICFB55NR4QLUN7OJRLZ7FJI}

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	2026-06-03T22:06:06.046700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b3281143deb63c82e8dfb9315e7e54a3cb863525e1e32c3a2a85b446e66ef07

Aliases

arxiv: 0805.1190 · arxiv_version: 0805.1190v1 · doi: 10.48550/arxiv.0805.1190 · pith_short_12: PMZICFB55NR4 · pith_short_16: PMZICFB55NR4QLUN · pith_short_8: PMZICFB5

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/PMZICFB55NR4QLUN7OJRLZ7FJI \
  | 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: 7b3281143deb63c82e8dfb9315e7e54a3cb863525e1e32c3a2a85b446e66ef07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fa006d4910174357d6a3b1d470cc69c5f338ef2d6fcb183806ff16078831636",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2008-05-08T16:28:13Z",
    "title_canon_sha256": "c2361c479dbce7eaa839307ef2b4879ad8dab9d655b22d0f8201e77a5b0efd51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.1190",
    "kind": "arxiv",
    "version": 1
  }
}