Pith Number

pith:WJJ4OBPF

pith:2025:WJJ4OBPFHO2QS6JE7UQZH2A45L

not attested not anchored not stored refs pending

Energy Extraction and Evolution of Regular Black Holes: The Case of Bardeen Spacetime

Angel Rincon, Vitalii Vertogradov

arxiv:2508.14489 v1 · 2025-08-20 · 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{WJJ4OBPFHO2QS6JE7UQZH2A45L}

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

3 papers in Pith

Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes

Families of regular spacetimes and energy conditions

Receipt and verification

First computed	2026-07-05T11:56:32.942034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b253c705e53bb5097924fd2193e81cead0db95415e30f9ecb71f4829328953ea

Aliases

arxiv: 2508.14489 · arxiv_version: 2508.14489v1 · doi: 10.48550/arxiv.2508.14489 · pith_short_12: WJJ4OBPFHO2Q · pith_short_16: WJJ4OBPFHO2QS6JE · pith_short_8: WJJ4OBPF

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/WJJ4OBPFHO2QS6JE7UQZH2A45L \
  | 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: b253c705e53bb5097924fd2193e81cead0db95415e30f9ecb71f4829328953ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3da1369a84dad05d3b1250003494309ec419614564f16a651c8935fc3cc3467",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-08-20T07:27:01Z",
    "title_canon_sha256": "0b97b84adbe7142ac7c36290917cec65a303342b89c6cc0789fb289b1f792891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.14489",
    "kind": "arxiv",
    "version": 1
  }
}