Pith Number

pith:VPE5UXZ5

pith:2010:VPE5UXZ5WKZE6SZ26JVPZXGA3K

not attested not anchored not stored refs pending

Koopmans' condition for density-functional theory

Andrea Ferretti, Ismaila Dabo, Matteo Cococcioni, Nicola Marzari, Nicolas Poilvert, Yanli Li

arxiv:1008.1934 v5 · 2010-08-11 · 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{VPE5UXZ5WKZE6SZ26JVPZXGA3K}

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	2026-05-18T04:40:20.017149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abc9da5f3db2b24f4b3af26afcdcc0daa8264154a409814a72ddaae2c86990a1

Aliases

arxiv: 1008.1934 · arxiv_version: 1008.1934v5 · doi: 10.48550/arxiv.1008.1934 · pith_short_12: VPE5UXZ5WKZE · pith_short_16: VPE5UXZ5WKZE6SZ2 · pith_short_8: VPE5UXZ5

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/VPE5UXZ5WKZE6SZ26JVPZXGA3K \
  | 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: abc9da5f3db2b24f4b3af26afcdcc0daa8264154a409814a72ddaae2c86990a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87c4f5ba5e5b6cfc0f3469487fbe3cfc3785db98987a8bf48f732fa090a27a97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2010-08-11T15:14:44Z",
    "title_canon_sha256": "4de8228c4efe1c22f321d6a0d129d05ca0331d80e9eb87bcc06b57377d039655"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1934",
    "kind": "arxiv",
    "version": 5
  }
}