Pith Number

pith:DH7MYEA2

pith:2002:DH7MYEA25MRYG33KCCJRLIXVDV

not attested not anchored not stored refs pending

Sagnac Interferometer as a Speed-Meter-Type, Quantum-Nondemolition Gravitational-Wave Detector

Yanbei Chen

arxiv:gr-qc/0208051 v1 · 2002-08-18 · 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{DH7MYEA25MRYG33KCCJRLIXVDV}

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	2026-07-04T16:33:46.168000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19fecc101aeb23836f6a109315a2f51d7f0505c57d9b0a377eccb7fd23f7152e

Aliases

arxiv: gr-qc/0208051 · arxiv_version: gr-qc/0208051v1 · doi: 10.48550/arxiv.gr-qc/0208051 · pith_short_12: DH7MYEA25MRY · pith_short_16: DH7MYEA25MRYG33K · pith_short_8: DH7MYEA2

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/DH7MYEA25MRYG33KCCJRLIXVDV \
  | 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: 19fecc101aeb23836f6a109315a2f51d7f0505c57d9b0a377eccb7fd23f7152e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39d81dfd2fd54b2527d12eea93b8b2f4dbe489228803ed5a1672a8ef34718382",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-08-18T16:58:41Z",
    "title_canon_sha256": "caf1d9c1ed6f3ee99f563078893866bdb5237c020fa0da645325371d7679fbc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0208051",
    "kind": "arxiv",
    "version": 1
  }
}