Pith Number

pith:LMQU5WUT

pith:2001:LMQU5WUTIVBPV23PKTP55YHJQD

not attested not anchored not stored refs pending

The LIGO Interferometer Sensing and Control System

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

arxiv:physics/0111027 v1 · 2001-11-07 · 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{LMQU5WUTIVBPV23PKTP55YHJQD}

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	2026-07-04T14:43:30.310357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b214eda934542faeb6f54dfdee0e980f154e4f468d010381cce9cf35ab0f018

Aliases

arxiv: physics/0111027 · arxiv_version: physics/0111027v1 · doi: 10.48550/arxiv.physics/0111027 · pith_short_12: LMQU5WUTIVBP · pith_short_16: LMQU5WUTIVBPV23P · pith_short_8: LMQU5WUT

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/LMQU5WUTIVBPV23PKTP55YHJQD \
  | 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: 5b214eda934542faeb6f54dfdee0e980f154e4f468d010381cce9cf35ab0f018

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcc0dce12b030bb79e2b86fcf3cff07ea34d9d6c4e0c946860297d8313322f9c",
    "cross_cats_sorted": [
      "physics.gen-ph",
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2001-11-07T16:52:42Z",
    "title_canon_sha256": "cc18c2cb9584add1adbd477b4ab07a9a26f977c59b3261f6e7cb80f6d214676b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0111027",
    "kind": "arxiv",
    "version": 1
  }
}