Pith Number

pith:RGN5U6EK

pith:2011:RGN5U6EKSQE6PJ4F3N5R4PMBQ2

not attested not anchored not stored refs pending

Interferometer readout-noise below the Standard Quantum Limit of a membrane

Daniel Friedrich, Farid Ya. Khalili, Helge Mueller-Ebhardt, Henning Kaufer, Karsten Danzmann, Kazuhiro Yamamoto, Roman Schnabel, Stefan Gossler, Stefan L. Danilishin, Tobias Westphal

arxiv:1111.7236 v1 · 2011-11-30 · physics.optics · quant-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{RGN5U6EKSQE6PJ4F3N5R4PMBQ2}

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	2026-05-18T00:48:06.104531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

899bda788a9409e7a785db7b1e3d818698cb193ea28061040f53c83ee2ff7206

Aliases

arxiv: 1111.7236 · arxiv_version: 1111.7236v1 · doi: 10.48550/arxiv.1111.7236 · pith_short_12: RGN5U6EKSQE6 · pith_short_16: RGN5U6EKSQE6PJ4F · pith_short_8: RGN5U6EK

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/RGN5U6EKSQE6PJ4F3N5R4PMBQ2 \
  | 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: 899bda788a9409e7a785db7b1e3d818698cb193ea28061040f53c83ee2ff7206

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "553b5c73fadc6d5af460f672ff61fb0ef1d31b005070185b3ea8da6eaec726cb",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-11-30T16:56:46Z",
    "title_canon_sha256": "d4770e77f02878c856da2b4a9946a0637412b3009eccae32bdf03baa671050bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.7236",
    "kind": "arxiv",
    "version": 1
  }
}