Pith Number

pith:5CMZBK7H

pith:2026:5CMZBK7HQ3DKBPT7DLHRSZXYIX

not attested not anchored not stored refs pending

Towards Robust Optimal Measurements Against Noise in Quantum Metrology

Chengjie Zhang, Chuan-Feng Li, Guang-Can Guo, Liangsheng Li, Stanis{\l}aw Kurdzia{\l}ek, Xinglei Yu, Xinzhi Zhao

arxiv:2606.25638 v1 · 2026-06-24 · 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{5CMZBK7HQ3DKBPT7DLHRSZXYIX}

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	2026-06-25T01:18:11.390237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e89990abe786c6a0be7f1acf1966f845d8dba3c28b07dd7d84a4e894fd8527c9

Aliases

arxiv: 2606.25638 · arxiv_version: 2606.25638v1 · doi: 10.48550/arxiv.2606.25638 · pith_short_12: 5CMZBK7HQ3DK · pith_short_16: 5CMZBK7HQ3DKBPT7 · pith_short_8: 5CMZBK7H

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/5CMZBK7HQ3DKBPT7DLHRSZXYIX \
  | 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: e89990abe786c6a0be7f1acf1966f845d8dba3c28b07dd7d84a4e894fd8527c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9619b91411c42357055641bebab2afa5cb5b59466769ae260eb1e8ccea93bada",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-24T09:44:05Z",
    "title_canon_sha256": "2dcf215e9c16ccadeb6834e19357afcdbce001126672ed16551c4114cad1df87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25638",
    "kind": "arxiv",
    "version": 1
  }
}