Pith Number

pith:LDJE6BKZ

pith:2025:LDJE6BKZPGIHAHXCBNTKRCE3N2

not attested not anchored not stored refs pending

Squeezing enhanced sensing at an exceptional point

Alexander Romanenko, Anna Grassellino, Changqing Wang, Deyuan Hu, Silvia Zorzetti, Zheshen Zhang

arxiv:2507.17961 v2 · 2025-07-23 · quant-ph · physics.app-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{LDJE6BKZPGIHAHXCBNTKRCE3N2}

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.

Receipt and verification

First computed	2026-05-28T01:04:29.289542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58d24f05597990701ee20b66a8889b6eb409fceb8307cf03674a4586353f11f5

Aliases

arxiv: 2507.17961 · arxiv_version: 2507.17961v2 · doi: 10.48550/arxiv.2507.17961 · pith_short_12: LDJE6BKZPGIH · pith_short_16: LDJE6BKZPGIHAHXC · pith_short_8: LDJE6BKZ

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/LDJE6BKZPGIHAHXCBNTKRCE3N2 \
  | 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: 58d24f05597990701ee20b66a8889b6eb409fceb8307cf03674a4586353f11f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15e427ed555d1f225cab4fb9c909f5346345e43675d041811ce284d66cd7c011",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-07-23T22:06:35Z",
    "title_canon_sha256": "0aa291e5b6a057b36d698309b370fad556428faa28cd70f30a7badcfbbbc5fa4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.17961",
    "kind": "arxiv",
    "version": 2
  }
}