Pith Number

pith:7I4KQQZU

pith:2018:7I4KQQZUIB3BB4F2J5DTUCD3G3

not attested not anchored not stored refs pending

An efficient deterministic perturbation theory for selected configuration interaction methods

Daniel S. Levine, Diptarka Hait, K. Birgitta Whaley, Martin Head-Gordon, Norm M. Tubman

arxiv:1808.02049 v1 · 2018-08-06 · cond-mat.str-el · physics.atm-clus · physics.comp-ph · quant-ph

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

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

PASPT2: a size-extensive and size-consistent partial-active-space multi-state multi-reference second-order perturbation theory for strongly correlated electrons

Receipt and verification

First computed	2026-05-18T00:08:47.800993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa38a84334407610f0ba4f473a087b36c03fe3d796dd834257e0c2597add0a2f

Aliases

arxiv: 1808.02049 · arxiv_version: 1808.02049v1 · doi: 10.48550/arxiv.1808.02049 · pith_short_12: 7I4KQQZUIB3B · pith_short_16: 7I4KQQZUIB3BB4F2 · pith_short_8: 7I4KQQZU

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/7I4KQQZUIB3BB4F2J5DTUCD3G3 \
  | 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: fa38a84334407610f0ba4f473a087b36c03fe3d796dd834257e0c2597add0a2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47817719d103a3e9888d122f8cfc2a06ff00df99e008b0a7082140eececfc1dc",
    "cross_cats_sorted": [
      "physics.atm-clus",
      "physics.comp-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2018-08-06T18:02:32Z",
    "title_canon_sha256": "5df9310cb7e14dc56c65d85494a1d13660d3a22d8b008e13aac98695b3dc56ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02049",
    "kind": "arxiv",
    "version": 1
  }
}