Pith Number

pith:RJPXJSOD

pith:2018:RJPXJSODSPEPQHD3PBFGXCLX3Q

not attested not anchored not stored refs pending

A no-hair theorem for spherically symmetric black holes in $R^2$ gravity

Demosthenes Kazanas, Joseph Sultana

arxiv:1810.02915 v1 · 2018-10-06 · 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{RJPXJSODSPEPQHD3PBFGXCLX3Q}

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	2026-05-18T00:03:59.895567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a5f74c9c393c8f81c7b784a6b8977dc000269599d173d9a982a0c3066e5c1dd

Aliases

arxiv: 1810.02915 · arxiv_version: 1810.02915v1 · doi: 10.48550/arxiv.1810.02915 · pith_short_12: RJPXJSODSPEP · pith_short_16: RJPXJSODSPEPQHD3 · pith_short_8: RJPXJSOD

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/RJPXJSODSPEPQHD3PBFGXCLX3Q \
  | 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: 8a5f74c9c393c8f81c7b784a6b8977dc000269599d173d9a982a0c3066e5c1dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e0278005167ce3219bd3ae06eebb7b727e7e061b5eb8f79a0fe06fa48aaeec9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-10-06T00:45:19Z",
    "title_canon_sha256": "091c2f428ced578bd782edc96cd6c55fa12a8db93cd8d134e71e856f35340131"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.02915",
    "kind": "arxiv",
    "version": 1
  }
}