Pith Number

pith:3ZOPWX3W

pith:2003:3ZOPWX3WH5XFLWRLIAIGKPBDL6

not attested not anchored not stored refs pending

Squeezed-input, optical-spring, signal-recycled gravitational-wave detectors

Alexander Franzen, Henning Vahlbruch, Jan Harms, Karsten Danzmann, Roman Schnabel, Simon Chelkowski, Yanbei Chen

arxiv:gr-qc/0303066 v2 · 2003-03-18 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3ZOPWX3WH5XFLWRLIAIGKPBDL6}

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	2026-07-04T16:40:10.705656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de5cfb5f763f6e55da2b4010653c235f9531b691ff5874b23efe2520360eefa0

Aliases

arxiv: gr-qc/0303066 · arxiv_version: gr-qc/0303066v2 · doi: 10.48550/arxiv.gr-qc/0303066 · pith_short_12: 3ZOPWX3WH5XF · pith_short_16: 3ZOPWX3WH5XFLWRL · pith_short_8: 3ZOPWX3W

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/3ZOPWX3WH5XFLWRLIAIGKPBDL6 \
  | 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: de5cfb5f763f6e55da2b4010653c235f9531b691ff5874b23efe2520360eefa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ccbb4972d14e0265e5b33dd4b00bd4b9a8715fc02f5d7f4b24c7b6795f5a8bf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2003-03-18T15:56:36Z",
    "title_canon_sha256": "ad014ccfe8cad15060b00d810e15c21234cefded7a0db64a6adf7ab63813d4f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0303066",
    "kind": "arxiv",
    "version": 2
  }
}