Pith Number

pith:OITWJ67I

pith:1994:OITWJ67IXZIZAFMJMR4KQY6MZK

not attested not anchored not stored refs pending

Calculation of gravitational wave forms from black hole collisions and disk collapse: Applying perturbation theory to numerical spacetimes

Andrew M. Abrahams, Saul A. Teukolsky, Stuart L. Shapiro

arxiv:gr-qc/9408036 v1 · 1994-08-30 · 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{OITWJ67IXZIZAFMJMR4KQY6MZK}

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.

Cited by

1 paper in Pith

Quasi-Normal Modes of Stars and Black Holes

Receipt and verification

First computed	2026-07-04T15:56:55.413088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

722764fbe8be519015896478a863cccaa9336edfb63dec3a83310d18b624af56

Aliases

arxiv: gr-qc/9408036 · arxiv_version: gr-qc/9408036v1 · doi: 10.48550/arxiv.gr-qc/9408036 · pith_short_12: OITWJ67IXZIZ · pith_short_16: OITWJ67IXZIZAFMJ · pith_short_8: OITWJ67I

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/OITWJ67IXZIZAFMJMR4KQY6MZK \
  | 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: 722764fbe8be519015896478a863cccaa9336edfb63dec3a83310d18b624af56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1297d35b392fe779af82b52a1cc6baf7d67315a44e5bf83e5b57d2abe908d7e1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1994-08-30T00:42:44Z",
    "title_canon_sha256": "29551d7ba0c631c2efafe179c5f7a911538d9ef5cae9d34380eaab3cff8e1569"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9408036",
    "kind": "arxiv",
    "version": 1
  }
}