Pith Number

pith:4WKNQSFA

pith:2001:4WKNQSFAPV4NIZTUUAOEK4LQGR

not attested not anchored not stored refs pending

An Overview of the LIGO Control and Data Acquisition System

CA), California Institute of Technology, D. Barker, J. Heefner (LIGO Laboratory, Pasadena, R. Abbott, R. Bork

arxiv:physics/0111077 v1 · 2001-11-09 · physics.ins-det · physics.gen-ph · 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{4WKNQSFAPV4NIZTUUAOEK4LQGR}

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.

Cited by

1 paper in Pith

Seismic Isolation of Optical Tables Using Piezo Actuators

Receipt and verification

First computed	2026-07-04T14:43:31.238060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e594d848a07d78d46674a01c457170347710ece09d9bd2e4dba3d0d8f5bf337b

Aliases

arxiv: physics/0111077 · arxiv_version: physics/0111077v1 · doi: 10.48550/arxiv.physics/0111077 · pith_short_12: 4WKNQSFAPV4N · pith_short_16: 4WKNQSFAPV4NIZTU · pith_short_8: 4WKNQSFA

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/4WKNQSFAPV4NIZTUUAOEK4LQGR \
  | 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: e594d848a07d78d46674a01c457170347710ece09d9bd2e4dba3d0d8f5bf337b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b67cefdb720331795d15058946fc18860370d01952ef44ce4e6f8229ca3e352",
    "cross_cats_sorted": [
      "physics.gen-ph",
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2001-11-09T20:03:12Z",
    "title_canon_sha256": "a0ed0c1badc872e153b02b2261cfa9e2ea144f7b4aff974b9ad17281e8c8124a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0111077",
    "kind": "arxiv",
    "version": 1
  }
}