Pith Number

pith:GFTX56BZ

pith:2025:GFTX56BZML7HU5UHKJUVQNJWP3

not attested not anchored not stored refs pending

Undecidable problems associated with variational quantum algorithms

Georgios Korpas, Jakub Mare\v{c}ek, Vyacheslav Kungurtsev

arxiv:2503.23723 v1 · 2025-03-31 · 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{GFTX56BZML7HU5UHKJUVQNJWP3}

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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

Setting angles in quantum approximate optimization at utility-scale

Receipt and verification

First computed	2026-07-05T10:41:58.519325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31677ef83962fe7a768752695835367ee70b010cd2f46e5afbc93d30b9e50888

Aliases

arxiv: 2503.23723 · arxiv_version: 2503.23723v1 · doi: 10.48550/arxiv.2503.23723 · pith_short_12: GFTX56BZML7H · pith_short_16: GFTX56BZML7HU5UH · pith_short_8: GFTX56BZ

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/GFTX56BZML7HU5UHKJUVQNJWP3 \
  | 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: 31677ef83962fe7a768752695835367ee70b010cd2f46e5afbc93d30b9e50888

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c332834bb489ba3758d3fe511e040794fd75c80a1318d2f5da3b4a50e73d3b8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-03-31T04:52:43Z",
    "title_canon_sha256": "f3c566a1ebc87fa20fe82486b57dac7078d44d0c91bacc09361d54bc3189bde8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.23723",
    "kind": "arxiv",
    "version": 1
  }
}