Pith Number

pith:LHBZIOY6

pith:2023:LHBZIOY6B5GLKNRXKHXRT2TLXH

not attested not anchored not stored refs pending

Heisenberg Limit beyond Quantum Fisher Information

Wojciech G\'orecki

arxiv:2304.14370 v1 · 2023-04-27 · 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{LHBZIOY6B5GLKNRXKHXRT2TLXH}

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

Exploring Entanglement and Parameter Sensitivity in QAOA through Quantum Fisher Information

Receipt and verification

First computed	2026-07-05T06:05:03.548966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59c3943b1e0f4cb5363751ef19ea6bb9d8e12824fe2d38d4843a7442eb8be5e3

Aliases

arxiv: 2304.14370 · arxiv_version: 2304.14370v1 · doi: 10.48550/arxiv.2304.14370 · pith_short_12: LHBZIOY6B5GL · pith_short_16: LHBZIOY6B5GLKNRX · pith_short_8: LHBZIOY6

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/LHBZIOY6B5GLKNRXKHXRT2TLXH \
  | 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: 59c3943b1e0f4cb5363751ef19ea6bb9d8e12824fe2d38d4843a7442eb8be5e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0f221e185212dad68c39b494ed1d8a982df60caba58271fa865c55d2f6116ea",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-04-27T17:43:45Z",
    "title_canon_sha256": "ce6c88e2aab16f477a5b760be0485203cf18e419def9d2867fd8151274619bfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.14370",
    "kind": "arxiv",
    "version": 1
  }
}