Pith Number

pith:W4C2HQIH

pith:2019:W4C2HQIHAYLF746AKWL4GJN22L

not attested not anchored not stored refs pending

A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers

Aaron Markowitz, Andrew R Wade, Christopher Wipf, Gautam Venugopalan, Kevin Kuns, Rana X Adhikari, Yanbei Chen, Yuntao Bai

arxiv:1909.02264 v2 · 2019-09-05 · quant-ph · physics.ins-det

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4C2HQIHAYLF746AKWL4GJN22L}

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	2026-07-05T01:26:05.471868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b705a3c10706165ff3c05597c325bad2f7ceb9cc0ec0c8b09ef2ff7eb2d95f65

Aliases

arxiv: 1909.02264 · arxiv_version: 1909.02264v2 · doi: 10.48550/arxiv.1909.02264 · pith_short_12: W4C2HQIHAYLF · pith_short_16: W4C2HQIHAYLF746A · pith_short_8: W4C2HQIH

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/W4C2HQIHAYLF746AKWL4GJN22L \
  | 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: b705a3c10706165ff3c05597c325bad2f7ceb9cc0ec0c8b09ef2ff7eb2d95f65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaba60cf561a9f00a6920f8e73f58d0683e3758303bd95ec27fb864591d9a517",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-09-05T08:46:36Z",
    "title_canon_sha256": "49b752dd0279baafdb9f4cabb0264ca16dec10f3ef289b84efddf7e6080a241c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02264",
    "kind": "arxiv",
    "version": 2
  }
}