Pith Number

pith:5TFFNPPD

pith:1997:5TFFNPPD6FAX2U7BI5SSLBFKKL

not attested not anchored not stored refs pending

Numerical Evolution of Black Holes with a Hyperbolic Formulation of General Relativity

(2) Univ. of Illinois at Urbana-Champaign), Gregory B. Cook (1), Mark A. Scheel (1), Saul A. Teukolsky (1) ((1) Cornell Univ., Stuart L. Shapiro (2), Thomas W. Baumgarte (2)

arxiv:gr-qc/9708067 v1 · 1997-08-27 · 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{5TFFNPPD6FAX2U7BI5SSLBFKKL}

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	2026-05-18T04:35:33.955741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecca56bde3f1417d53e147652584aa52cfa17d4cf8cc917bcdfa08665c769732

Aliases

arxiv: gr-qc/9708067 · arxiv_version: gr-qc/9708067v1 · doi: 10.48550/arxiv.gr-qc/9708067 · pith_short_12: 5TFFNPPD6FAX · pith_short_16: 5TFFNPPD6FAX2U7B · pith_short_8: 5TFFNPPD

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/5TFFNPPD6FAX2U7BI5SSLBFKKL \
  | 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: ecca56bde3f1417d53e147652584aa52cfa17d4cf8cc917bcdfa08665c769732

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7804ffb27fb8eaed60373773319ab3bcdf8dcb96fd14ad3e0422a63ac019d7e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-08-27T22:02:39Z",
    "title_canon_sha256": "41d75f137b634d1e7b56540942193082ed1cd9528ceb808bfc590b177ec4a3f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9708067",
    "kind": "arxiv",
    "version": 1
  }
}