Pith Number

pith:BQUF3MEY

pith:2017:BQUF3MEYWF55Q6JDXZHRLKPROU

not attested not anchored not stored refs pending

'Hartree-exchange' in ensemble density functional theory: Avoiding the non-uniqueness disaster

Stefano Pittalis, Tim Gould

arxiv:1708.03966 v5 · 2017-08-13 · physics.chem-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQUF3MEYWF55Q6JDXZHRLKPROU}

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	2026-05-18T00:27:27.892525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c285db098b17bd87923be4f15a9f17503adfcad0fb5dd56e4da2383d2156fd8

Aliases

arxiv: 1708.03966 · arxiv_version: 1708.03966v5 · doi: 10.48550/arxiv.1708.03966 · pith_short_12: BQUF3MEYWF55 · pith_short_16: BQUF3MEYWF55Q6JD · pith_short_8: BQUF3MEY

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/BQUF3MEYWF55Q6JDXZHRLKPROU \
  | 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: 0c285db098b17bd87923be4f15a9f17503adfcad0fb5dd56e4da2383d2156fd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c057ec0d81d95fa64d9e880b88442712e50f0c30784cc35459d3ec43186b81e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2017-08-13T21:30:16Z",
    "title_canon_sha256": "f3b31df2d861815501eb6db2e06509caffe21928d72879606207d6840fd8ad1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.03966",
    "kind": "arxiv",
    "version": 5
  }
}