Pith Number

pith:HEPHPCAC

pith:2022:HEPHPCACUWHE4WWULMP3AAOOL3

not attested not anchored not stored refs pending

An Empirical Review of Optimization Techniques for Quantum Variational Circuits

Owen Lockwood

arxiv:2202.01389 v3 · 2022-02-03 · quant-ph · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HEPHPCACUWHE4WWULMP3AAOOL3}

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	2026-07-05T03:55:52.299147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

391e778802a58e4e5ad45b1fb001ce5ed143ac8dbeb0bbcf5dd70c039da6fce7

Aliases

arxiv: 2202.01389 · arxiv_version: 2202.01389v3 · doi: 10.48550/arxiv.2202.01389 · pith_short_12: HEPHPCACUWHE · pith_short_16: HEPHPCACUWHE4WWU · pith_short_8: HEPHPCAC

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/HEPHPCACUWHE4WWULMP3AAOOL3 \
  | 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: 391e778802a58e4e5ad45b1fb001ce5ed143ac8dbeb0bbcf5dd70c039da6fce7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74188a90518b3da6c4e91b6f3f8bfbaeffba58bd9184cb600b39a7b5880e3ba3",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-02-03T03:20:54Z",
    "title_canon_sha256": "79e6569a77a619f6603a65e225ea8c3d3d3834493ff197455eeeb35e19cb6a76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.01389",
    "kind": "arxiv",
    "version": 3
  }
}