Pith Number

pith:QSP5B3AH

pith:2003:QSP5B3AHSHPSEOZUUL7TNMKE6E

not attested not anchored not stored refs pending

Second Order Scalar Invariants of the Riemann Tensor: Applications to Black Hole Spacetimes

C. Cherubini, D. Bini, R. Ruffini, S. Capozziello

arxiv:gr-qc/0302095 v1 · 2003-02-24 · gr-qc · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSP5B3AHSHPSEOZUUL7TNMKE6E}

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

4 papers in Pith

Spinfoams, $\gamma$-duality and parity violation in primordial gravitational waves

General gravitational properties of neutron stars: curvature invariants, binding energy, and trace anomaly

Families of regular spacetimes and energy conditions

Receipt and verification

First computed	2026-05-18T04:17:52.953693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

849fd0ec0791df223b34a2ff36b144f136350399db194d8487151f045efd215a

Aliases

arxiv: gr-qc/0302095 · arxiv_version: gr-qc/0302095v1 · doi: 10.48550/arxiv.gr-qc/0302095 · pith_short_12: QSP5B3AHSHPS · pith_short_16: QSP5B3AHSHPSEOZU · pith_short_8: QSP5B3AH

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/QSP5B3AHSHPSEOZUUL7TNMKE6E \
  | 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: 849fd0ec0791df223b34a2ff36b144f136350399db194d8487151f045efd215a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aeaf2a5f06ccd2ddd77f66bd2645728b3e8e65cc5c1d4f4cdb1529d1d74aa004",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2003-02-24T12:24:10Z",
    "title_canon_sha256": "e0ab32e24b89bc0b115a44b138c30b4db77c29b083e679d8c79c38fd31bcca95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0302095",
    "kind": "arxiv",
    "version": 1
  }
}