Pith Number

pith:VR7BIG5Q

pith:2009:VR7BIG5QIPHPUZQQMXNNJ6AWZJ

not attested not anchored not stored refs pending

Homodyne locking of a squeezer

E. H. Huntington, I. R. Petersen, M. Heurs, M. R. James

arxiv:0907.3323 v1 · 2009-07-19 · 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{VR7BIG5QIPHPUZQQMXNNJ6AWZJ}

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	2026-05-18T02:12:55.713748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac7e141bb043cefa661065dad4f816ca5f1c9144a1958051ddab9e0be54854ba

Aliases

arxiv: 0907.3323 · arxiv_version: 0907.3323v1 · doi: 10.48550/arxiv.0907.3323 · pith_short_12: VR7BIG5QIPHP · pith_short_16: VR7BIG5QIPHPUZQQ · pith_short_8: VR7BIG5Q

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/VR7BIG5QIPHPUZQQMXNNJ6AWZJ \
  | 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: ac7e141bb043cefa661065dad4f816ca5f1c9144a1958051ddab9e0be54854ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d910b35700ff4f4bcf1735ef80c1271d8c9054ee4fbb42aee929b6f96eed202f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-07-19T22:55:08Z",
    "title_canon_sha256": "8820824d682ccaa525436b9fee2a1391a0af7f87ec1634cbaf1aae1ed33b4c3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3323",
    "kind": "arxiv",
    "version": 1
  }
}