Pith Number

pith:WC72XWVW

pith:2019:WC72XWVWRFLCTCGPU2JPBHQD6S

not attested not anchored not stored refs pending

Approximate analytical gradients and nonadiabatic couplings for the state-average density matrix renormalization group self-consistent field method

Alberto Baiardi, Leon Freitag, Markus Reiher, Stefan Knecht, Yingjin Ma

arxiv:1905.01558 v2 · 2019-05-04 · physics.chem-ph · cond-mat.str-el · physics.comp-ph · quant-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{WC72XWVWRFLCTCGPU2JPBHQD6S}

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	2026-07-05T00:40:55.226347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0bfabdab689562988cfa692f09e03f4abd66f4f4c87b33af378cba6202b320e

Aliases

arxiv: 1905.01558 · arxiv_version: 1905.01558v2 · doi: 10.48550/arxiv.1905.01558 · pith_short_12: WC72XWVWRFLC · pith_short_16: WC72XWVWRFLCTCGP · pith_short_8: WC72XWVW

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/WC72XWVWRFLCTCGPU2JPBHQD6S \
  | 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: b0bfabdab689562988cfa692f09e03f4abd66f4f4c87b33af378cba6202b320e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ba9f443e4e76a399da58aa4b132962a213c2cb8f378e94cfd04d582ea1f78fa",
    "cross_cats_sorted": [
      "cond-mat.str-el",
      "physics.comp-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2019-05-04T21:22:26Z",
    "title_canon_sha256": "fb730b1771cf8d0eeb385cb65f897f99ab38089f967c42da63f84fae4d8ba8ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01558",
    "kind": "arxiv",
    "version": 2
  }
}