Pith Number

pith:TUPPZD4E

pith:2002:TUPPZD4EQGUWKJDL7PICV4S3K6

not attested not anchored not stored refs pending

Listening to the Universe with Gravitational-Wave Astronomy

Scott A. Hughes

arxiv:astro-ph/0210481 v3 · 2002-10-22 · astro-ph · 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{TUPPZD4EQGUWKJDL7PICV4S3K6}

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	2026-05-18T02:40:27.308485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d1efc8f8481a965246bfbd02af25b57a19b87652202faef3cfe55a32235a164

Aliases

arxiv: astro-ph/0210481 · arxiv_version: astro-ph/0210481v3 · doi: 10.48550/arxiv.astro-ph/0210481 · pith_short_12: TUPPZD4EQGUW · pith_short_16: TUPPZD4EQGUWKJDL · pith_short_8: TUPPZD4E

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/TUPPZD4EQGUWKJDL7PICV4S3K6 \
  | 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: 9d1efc8f8481a965246bfbd02af25b57a19b87652202faef3cfe55a32235a164

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e16b8705af040f0a5ac30af22ae23acf95a0e55c03f486ce158c6d20d1bce1fd",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-10-22T18:28:28Z",
    "title_canon_sha256": "d802b8f06d13831f491035a376a4df38a91354c13865f72cbca14c042e8b13a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0210481",
    "kind": "arxiv",
    "version": 3
  }
}