Pith Number

pith:URYOCPMF

pith:2026:URYOCPMFWTHVGVIUELI4FTQTLG

not attested not anchored not stored refs pending

First Demonstration of Optical Feedback Control to Parametric Instability at Advanced LIGO

Alex Adam, Anamaria Effler, Carl Blair, Chunnong Zhao, Jian Liu, Juntao Pan, Li Ju, Vladimir Bossilkov

arxiv:2606.27643 v1 · 2026-06-26 · gr-qc · astro-ph.IM · physics.ins-det · 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{URYOCPMFWTHVGVIUELI4FTQTLG}

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	2026-06-29T00:14:13.020067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a470e13d85b4cf53551422d1c2ce13599ca2f13cf2ac69bb317aafc63f4a024f

Aliases

arxiv: 2606.27643 · arxiv_version: 2606.27643v1 · doi: 10.48550/arxiv.2606.27643 · pith_short_12: URYOCPMFWTHV · pith_short_16: URYOCPMFWTHVGVIU · pith_short_8: URYOCPMF

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/URYOCPMFWTHVGVIUELI4FTQTLG \
  | 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: a470e13d85b4cf53551422d1c2ce13599ca2f13cf2ac69bb317aafc63f4a024f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f744b04852d8e6f2a1417692b03426e31e61d19a083d36f328db74f8f4e25fb8",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.ins-det",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-06-26T01:40:14Z",
    "title_canon_sha256": "ab3118b85bc2480774585e6caa89a55503494276b4e4fda36b077e605d281b5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27643",
    "kind": "arxiv",
    "version": 1
  }
}