Pith Number

pith:LHHS6UMM

pith:2009:LHHS6UMMLVBIVSGQ44OJ4RYSDL

not attested not anchored not stored refs pending

Observation of continuous-wave squeezed light at 1550 nm

Andr\'e Th\"uring, Henning Vahlbruch, Karsten Danzmann, Moritz Mehmet, Roman Schnabel, Sebastian Steinlechner, Tobias Eberle

arxiv:0902.0670 v1 · 2009-02-04 · 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{LHHS6UMMLVBIVSGQ44OJ4RYSDL}

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	2026-05-18T02:14:49.350096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59cf2f518c5d428ac8d0e71c9e47121ad8fd14cdb82244989bae446503f7d452

Aliases

arxiv: 0902.0670 · arxiv_version: 0902.0670v1 · doi: 10.48550/arxiv.0902.0670 · pith_short_12: LHHS6UMMLVBI · pith_short_16: LHHS6UMMLVBIVSGQ · pith_short_8: LHHS6UMM

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/LHHS6UMMLVBIVSGQ44OJ4RYSDL \
  | 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: 59cf2f518c5d428ac8d0e71c9e47121ad8fd14cdb82244989bae446503f7d452

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dda447ef8c081d373c7c07606fcfd6bbbffeb7d70ec16dd051c9cfabf5a7d25f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-02-04T08:51:34Z",
    "title_canon_sha256": "73a89f198988aacf947de5eb86b23bfc46977b7a69ea5da01eebe3fcdd0729b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0670",
    "kind": "arxiv",
    "version": 1
  }
}