Pith Number

pith:EGZXFHEV

pith:2020:EGZXFHEVOWTMPRN7UMRLQQSRKN

not attested not anchored not stored refs pending

The impacts of optimization algorithm and basis size on the accuracy and efficiency of variational quantum eigensolver

Chao Zhang, Chen Fu, Dengdong Fan, Pengxiang Xu, Rui-Qin Zhang, Shiyu Du, Xian-Hu Zha

arxiv:2006.15852 v2 · 2020-06-29 · physics.chem-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{EGZXFHEVOWTMPRN7UMRLQQSRKN}

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	2026-07-05T02:07:03.695922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21b3729c9575a6c7c5bfa322b842515353bb611255d866b3f7ec22edea87115a

Aliases

arxiv: 2006.15852 · arxiv_version: 2006.15852v2 · doi: 10.48550/arxiv.2006.15852 · pith_short_12: EGZXFHEVOWTM · pith_short_16: EGZXFHEVOWTMPRN7 · pith_short_8: EGZXFHEV

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/EGZXFHEVOWTMPRN7UMRLQQSRKN \
  | 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: 21b3729c9575a6c7c5bfa322b842515353bb611255d866b3f7ec22edea87115a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d07c01f6d4c45c6b402d934afef015e5114994c43826b9e9c6fc0e03fd2afec",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2020-06-29T07:50:24Z",
    "title_canon_sha256": "64b6765fd0304caef405b09b78a1fe59c87cfc310a4dfd4996e0e8eaae2f9745"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.15852",
    "kind": "arxiv",
    "version": 2
  }
}