Pith Number

pith:4WHDOIRJ

pith:2007:4WHDOIRJV4G74CKBOCGHTSAP7K

not attested not anchored not stored refs pending

Experimental characterization of frequency dependent squeezed light

Alexander Franzen, Boris Hage, Henning Vahlbruch, Karsten Danzmann, Nico Lastzka, Roman Schnabel, Simon Chelkowski

arxiv:0706.4479 v1 · 2007-06-29 · 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{4WHDOIRJV4G74CKBOCGHTSAP7K}

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	2026-07-04T17:04:29.837485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e58e372229af0dfe0941708c79c80ffab58f9afecc03e772e7134efa3f5ae41c

Aliases

arxiv: 0706.4479 · arxiv_version: 0706.4479v1 · doi: 10.48550/arxiv.0706.4479 · pith_short_12: 4WHDOIRJV4G7 · pith_short_16: 4WHDOIRJV4G74CKB · pith_short_8: 4WHDOIRJ

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/4WHDOIRJV4G74CKBOCGHTSAP7K \
  | 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: e58e372229af0dfe0941708c79c80ffab58f9afecc03e772e7134efa3f5ae41c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5caff3035a4e427202f72f68296f0644fdd17d8cc40d61340559766be5ed5676",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-06-29T19:45:48Z",
    "title_canon_sha256": "4e1bf9186105d22c7624a4849541a77f5baa42f035ec65f4cdcebd82c511abbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.4479",
    "kind": "arxiv",
    "version": 1
  }
}