Pith Number

pith:2QHX5BPV

pith:2019:2QHX5BPVVYODSGVJHXSIMQ3Q2F

not attested not anchored not stored refs pending

On the distinguishable cluster approximation for triple excitations

Andreas K\"ohn, Daniel Kats

arxiv:1903.06932 v2 · 2019-03-16 · 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{2QHX5BPVVYODSGVJHXSIMQ3Q2F}

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	2026-05-17T23:47:25.239281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d40f7e85f5ae1c391aa93de4864370d17e431f6ea5bb9736fc71929d1480df25

Aliases

arxiv: 1903.06932 · arxiv_version: 1903.06932v2 · doi: 10.48550/arxiv.1903.06932 · pith_short_12: 2QHX5BPVVYOD · pith_short_16: 2QHX5BPVVYODSGVJ · pith_short_8: 2QHX5BPV

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/2QHX5BPVVYODSGVJHXSIMQ3Q2F \
  | 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: d40f7e85f5ae1c391aa93de4864370d17e431f6ea5bb9736fc71929d1480df25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40f6ceb35856c449d7bb76af6d8b1fdc1235027fd8906de26bf08ed631849a14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2019-03-16T14:40:16Z",
    "title_canon_sha256": "82fb805e6024690c5aba418f98e4a274b843b7997115f7070cdcfa47747b4dd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.06932",
    "kind": "arxiv",
    "version": 2
  }
}