Pith Number

pith:3UVH2O5T

pith:2025:3UVH2O5TZT2B35MORGF3E3UXZ3

not attested not anchored not stored refs pending

Lorentzian-Euclidean black holes and Lorentzian to Riemannian metric transitions

Anna Valeria Germinario, Erasmo Caponio, Miguel S\'anchez, Rossella Bartolo

arxiv:2502.14108 v3 · 2025-02-19 · gr-qc · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3UVH2O5TZT2B35MORGF3E3UXZ3}

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

Null geodesics, causal structure, and matter accretion in Lorentzian-Euclidean black holes

Receipt and verification

First computed	2026-07-05T11:07:20.713395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd2a7d3bb3ccf41df58e898bb26e97ced3f046edf473e94bf75eee89b48519d2

Aliases

arxiv: 2502.14108 · arxiv_version: 2502.14108v3 · doi: 10.48550/arxiv.2502.14108 · pith_short_12: 3UVH2O5TZT2B · pith_short_16: 3UVH2O5TZT2B35MO · pith_short_8: 3UVH2O5T

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/3UVH2O5TZT2B35MORGF3E3UXZ3 \
  | 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: dd2a7d3bb3ccf41df58e898bb26e97ced3f046edf473e94bf75eee89b48519d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be977786cc678cde52adc7af390564a27e8fda629a241a9a3c7c29b933c86b32",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-02-19T21:22:42Z",
    "title_canon_sha256": "ef2db5366acffa5eb0e432170f6487ebe4e94ef138d30c395f8f1e3ec21874f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.14108",
    "kind": "arxiv",
    "version": 3
  }
}