Pith Number

pith:FR4Q6M6N

pith:2011:FR4Q6M6N2UG5RPMLHV7JXNXFJR

not attested not anchored not stored refs pending

Magnetic sensitivity beyond the projection noise limit by spin squeezing

B. Dubost, M. Koschorreck, M. Napolitano, M. W. Mitchell, N. Behbood, R. J. Sewell

arxiv:1111.6969 v3 · 2011-11-29 · 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{FR4Q6M6N2UG5RPMLHV7JXNXFJR}

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	2026-05-18T03:27:41.242959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c790f33cdd50dd8bd8b3d7e9bb6e54c43fe5efcf887631281ed94c38b0fade2

Aliases

arxiv: 1111.6969 · arxiv_version: 1111.6969v3 · doi: 10.48550/arxiv.1111.6969 · pith_short_12: FR4Q6M6N2UG5 · pith_short_16: FR4Q6M6N2UG5RPML · pith_short_8: FR4Q6M6N

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/FR4Q6M6N2UG5RPMLHV7JXNXFJR \
  | 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: 2c790f33cdd50dd8bd8b3d7e9bb6e54c43fe5efcf887631281ed94c38b0fade2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "019ea6eb747ac6502af64678ba81dba97eb23ce705f82207bc9a06b1de657ce0",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-11-29T20:59:36Z",
    "title_canon_sha256": "eac0dfaa4a812f37bb7e52983207b533949b63e1c19e9c92d4ca6c77b60be0c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6969",
    "kind": "arxiv",
    "version": 3
  }
}