Pith Number

pith:4PYZ2DSD

pith:2023:4PYZ2DSDRVCSYUIZAJIKVPTM4S

not attested not anchored not stored refs pending

Coupled cluster downfolding techniques: a review of existing applications in classical and quantum computing for chemical systems

Bo Peng, Karol Kowalski, Nicholas P. Bauman

arxiv:2303.00087 v1 · 2023-02-28 · quant-ph

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\usepackage{pith}
\pithnumber{4PYZ2DSDRVCSYUIZAJIKVPTM4S}

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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.

Cited by

1 paper in Pith

Exact downfolding and its perturbative approximation

Receipt and verification

First computed	2026-07-05T05:46:54.249070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3f19d0e438d452c51190250aabe6ce4920e4b160d20229f267775444d101715

Aliases

arxiv: 2303.00087 · arxiv_version: 2303.00087v1 · doi: 10.48550/arxiv.2303.00087 · pith_short_12: 4PYZ2DSDRVCS · pith_short_16: 4PYZ2DSDRVCSYUIZ · pith_short_8: 4PYZ2DSD

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/4PYZ2DSDRVCSYUIZAJIKVPTM4S \
  | 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: e3f19d0e438d452c51190250aabe6ce4920e4b160d20229f267775444d101715

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5917fbae4e6875952ef110afa3e9cde0e88d455091f540f8f212a0bbac661d04",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-02-28T21:16:26Z",
    "title_canon_sha256": "3be75883604fa610ef203f7f41e0b4fa9498aee5a6b504d5c4114e20a72a8865"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.00087",
    "kind": "arxiv",
    "version": 1
  }
}