Pith Number

pith:OTZ6IFBT

pith:2025:OTZ6IFBTGFKJ4TG56AQQR6YPGV

not attested not anchored not stored refs pending

Hamiltonian Expressibility for Ansatz Selection in Variational Quantum Algorithms

Filippo Brozzi, Filippo Caruso, Gloria Turati, Maurizio Ferrari Dacrema, Paolo Cremonesi

arxiv:2507.22550 v1 · 2025-07-30 · quant-ph · cs.ET

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OTZ6IFBTGFKJ4TG56AQQR6YPGV}

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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

Expressibility, Noise, and Error Mitigation in VQE Ansatz Selection

Receipt and verification

First computed	2026-07-05T11:45:44.425608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74f3e4143331549e4cddf02108fb0f3572182cedb770e4210582b4cf360cbbce

Aliases

arxiv: 2507.22550 · arxiv_version: 2507.22550v1 · doi: 10.48550/arxiv.2507.22550 · pith_short_12: OTZ6IFBTGFKJ · pith_short_16: OTZ6IFBTGFKJ4TG5 · pith_short_8: OTZ6IFBT

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/OTZ6IFBTGFKJ4TG56AQQR6YPGV \
  | 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: 74f3e4143331549e4cddf02108fb0f3572182cedb770e4210582b4cf360cbbce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "456810b1eb6b3d39d44addfd2a85a4520ba77524c6b934b298e48b9b31894cc8",
    "cross_cats_sorted": [
      "cs.ET"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-07-30T10:23:54Z",
    "title_canon_sha256": "9a9399b328d75c670d982d790696e9ca49a7d097caf33e2440717b237da8d87f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.22550",
    "kind": "arxiv",
    "version": 1
  }
}