Pith Number

pith:XQQLMMYW

pith:2007:XQQLMMYWOETC5MXV2YF7JXFYTI

not attested not anchored not stored refs pending

A common misconception about LIGO detectors of gravitational waves

Valerio Faraoni (Bishop's University)

arxiv:gr-qc/0702079 v1 · 2007-02-14 · 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{XQQLMMYWOETC5MXV2YF7JXFYTI}

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	2026-05-18T02:37:27.050581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc20b6331671262eb2f5d60bf4dcb89a1d937ce487edd3d385ec8eeab823eb41

Aliases

arxiv: gr-qc/0702079 · arxiv_version: gr-qc/0702079v1 · doi: 10.48550/arxiv.gr-qc/0702079 · pith_short_12: XQQLMMYWOETC · pith_short_16: XQQLMMYWOETC5MXV · pith_short_8: XQQLMMYW

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/XQQLMMYWOETC5MXV2YF7JXFYTI \
  | 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: bc20b6331671262eb2f5d60bf4dcb89a1d937ce487edd3d385ec8eeab823eb41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40aee878cbf35ba4cc73f31ca55b9792f98ae4fb063ad25f58c471dfea5da1ee",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-02-14T14:29:33Z",
    "title_canon_sha256": "703aacd909abec955d515aef98cd06a057d72d0d39fc7d6e6909ceed2d92bc62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0702079",
    "kind": "arxiv",
    "version": 1
  }
}