Pith Number

pith:FF2QM7C2

pith:2022:FF2QM7C2TUMPQV3TFMLLEYB3ZA

not attested not anchored not stored refs pending

Quantifying the barren plateau phenomenon for a model of unstructured variational ans\"{a}tze

John Napp

arxiv:2203.06174 v1 · 2022-03-11 · 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{FF2QM7C2TUMPQV3TFMLLEYB3ZA}

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.

Cited by

1 paper in Pith

Quantum Convolutional Neural Networks are Effectively Classically Simulable

Receipt and verification

First computed	2026-07-05T04:04:13.395151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2975067c5a9d18f857732b16b2603bc80b415d0b8bad00b2796bfecaf668aec5

Aliases

arxiv: 2203.06174 · arxiv_version: 2203.06174v1 · doi: 10.48550/arxiv.2203.06174 · pith_short_12: FF2QM7C2TUMP · pith_short_16: FF2QM7C2TUMPQV3T · pith_short_8: FF2QM7C2

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/FF2QM7C2TUMPQV3TFMLLEYB3ZA \
  | 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: 2975067c5a9d18f857732b16b2603bc80b415d0b8bad00b2796bfecaf668aec5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e7676e27c0fd2b8203b1ddaf10a254166334b44f6276cd10f454aaa1f2c88e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-03-11T18:58:12Z",
    "title_canon_sha256": "336b3330b371c19ece9003099d80bb9db84d25719b80cb05a093b1be7755b98b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.06174",
    "kind": "arxiv",
    "version": 1
  }
}