Pith Number

pith:FDUVUTLA

pith:2026:FDUVUTLAJXPOX7XVMZ6BC5CM6C

not attested not anchored not stored refs pending

Fundamental Limits of Non-Hermitian Sensing from Quantum Fisher Information

Jan Wiersig, Stefan Rotter

arxiv:2603.10614 v2 · 2026-03-11 · quant-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDUVUTLAJXPOX7XVMZ6BC5CM6C}

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

3 papers in Pith

Journey in quantum metrology and sensing from foundations to applications: a review

Converting non-Hermitian degeneracies of any order: Hierarchies of exceptional points and degeneracy manifolds

Characterizing all non-Hermitian degeneracies using algebraic approaches: Defectiveness and asymptotic behavior

Receipt and verification

First computed	2026-06-04T01:08:48.017928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28e95a4d604ddeebfef5667c11744cf094c5576606832697e29f25aebefe3248

Aliases

arxiv: 2603.10614 · arxiv_version: 2603.10614v2 · doi: 10.48550/arxiv.2603.10614 · pith_short_12: FDUVUTLAJXPO · pith_short_16: FDUVUTLAJXPOX7XV · pith_short_8: FDUVUTLA

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/FDUVUTLAJXPOX7XVMZ6BC5CM6C \
  | 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: 28e95a4d604ddeebfef5667c11744cf094c5576606832697e29f25aebefe3248

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a7093cde1e5cbacd989a6fb64341d6e63bd751a9db8dde18cf727f5b3d46541",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-03-11T10:21:40Z",
    "title_canon_sha256": "4ac5af31fd4cd73cdd2bde76e99fbabcabcda9c537c0279f4043370921dbe2ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.10614",
    "kind": "arxiv",
    "version": 2
  }
}