Pith Number

pith:KFXH42UU

pith:2002:KFXH42UUSBSRPA7XNTG4USESLN

not attested not anchored not stored refs pending

The "optical lever" intracavity readout scheme for gravitational-wave antennae

F.Ya.Khalili

arxiv:gr-qc/0203002 v1 · 2002-03-01 · 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{KFXH42UUSBSRPA7XNTG4USESLN}

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	2026-05-18T01:39:23.802057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

516e7e6a9490651783f76ccdca48925b6e0e64073b6b1fb04fc662ec65aa8bef

Aliases

arxiv: gr-qc/0203002 · arxiv_version: gr-qc/0203002v1 · doi: 10.48550/arxiv.gr-qc/0203002 · pith_short_12: KFXH42UUSBSR · pith_short_16: KFXH42UUSBSRPA7X · pith_short_8: KFXH42UU

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/KFXH42UUSBSRPA7XNTG4USESLN \
  | 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: 516e7e6a9490651783f76ccdca48925b6e0e64073b6b1fb04fc662ec65aa8bef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b2aef9c2f89fb087d5f11700f576de3b7c1325cd81193cc93b3b3ec580d5300",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-03-01T11:31:41Z",
    "title_canon_sha256": "197da473b66ac06f7f1147b99a3043975261d2fceb569a238d88d675972e7476"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0203002",
    "kind": "arxiv",
    "version": 1
  }
}