Pith Number

pith:S6G72XYX

pith:2026:S6G72XYXR2OWKMXWI7FSSSG5NC

not attested not anchored not stored refs pending

Entanglement-enhanced optical magnetometry beyond the standard quantum limit

Andrea Grimaldi, Emil Zeuthen, Eugene Simon Polzik, J\"org Helge M\"uller, Jun Jia, Laurits M{\o}berg, Maimouna Bocoum, Mikhail Balabas, T\'ulio Brito Brasil

arxiv:2608.06815 v1 · 2026-08-07 · quant-ph · physics.atom-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{S6G72XYXR2OWKMXWI7FSSSG5NC}

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	2026-08-10T01:12:10.709922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

978dfd5f178e9d6532f647cb2948dd68b5f2ba6f76b1748f0c07d621c57c4ec2

Aliases

arxiv: 2608.06815 · arxiv_version: 2608.06815v1 · doi: 10.48550/arxiv.2608.06815 · pith_short_12: S6G72XYXR2OW · pith_short_16: S6G72XYXR2OWKMXW · pith_short_8: S6G72XYX

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/S6G72XYXR2OWKMXWI7FSSSG5NC \
  | 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: 978dfd5f178e9d6532f647cb2948dd68b5f2ba6f76b1748f0c07d621c57c4ec2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8e916a804341687a84404fd165dc0eaad40f1d617ead979c9a5c4c7486d8614",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-08-07T05:12:17Z",
    "title_canon_sha256": "1d7c6aff6046659f4263d3b929e1d2fc32bb83268fd47d3fc35bac4586fe7257"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.06815",
    "kind": "arxiv",
    "version": 1
  }
}