Pith Number

pith:MQV45SBL

pith:2025:MQV45SBL7SUANMQZMIW2FYYFTI

not attested not anchored not stored refs pending

Observation of an Optical Spring in a Robustly Controlled Signal-Recycled Michelson Interferometer

Kaido Suzuki, Ken-ichi Harada, Kentaro Komori, Kentaro Somiya, Ryo Iden, Sotatsu Otabe, Yuta Michimura

arxiv:2504.18374 v2 · 2025-04-25 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MQV45SBL7SUANMQZMIW2FYYFTI}

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	2026-07-05T12:11:17.329871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

642bcec82bfca806b219622da2e3059a1cd74993344e3be9ddf45350d88fe455

Aliases

arxiv: 2504.18374 · arxiv_version: 2504.18374v2 · doi: 10.48550/arxiv.2504.18374 · pith_short_12: MQV45SBL7SUA · pith_short_16: MQV45SBL7SUANMQZ · pith_short_8: MQV45SBL

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/MQV45SBL7SUANMQZMIW2FYYFTI \
  | 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: 642bcec82bfca806b219622da2e3059a1cd74993344e3be9ddf45350d88fe455

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44238a1c371000ab9b832072ebbc658a287ce53dc2a8e0a0fdb267453d2c462e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-04-25T14:19:06Z",
    "title_canon_sha256": "586fcc34f5669f77818e8dbbeca96a257c66e6c0b96e45b30174e4aea27698ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.18374",
    "kind": "arxiv",
    "version": 2
  }
}