Pith Number

pith:SLLFRHBS

pith:2015:SLLFRHBSQ2M7Q4TEE4YSPZUSBJ

not attested not anchored not stored refs pending

Regular black holes in de Sitter universe: scalar field perturbations and quasinormal modes

Sharmanthie Fernando

arxiv:1508.03581 v1 · 2015-08-14 · 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{SLLFRHBSQ2M7Q4TEE4YSPZUSBJ}

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	2026-05-18T01:20:45.475564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92d6589c328699f87264273127e6920a7eb3e33fa22cdf38a60d84f23859455f

Aliases

arxiv: 1508.03581 · arxiv_version: 1508.03581v1 · doi: 10.48550/arxiv.1508.03581 · pith_short_12: SLLFRHBSQ2M7 · pith_short_16: SLLFRHBSQ2M7Q4TE · pith_short_8: SLLFRHBS

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/SLLFRHBSQ2M7Q4TEE4YSPZUSBJ \
  | 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: 92d6589c328699f87264273127e6920a7eb3e33fa22cdf38a60d84f23859455f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5a387ba87bb96bd1a2d8a4df87059c1b888240a6da5f324fbfce67c23987c13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-08-14T17:57:17Z",
    "title_canon_sha256": "321fce47dd295e35c7668f72be5ad584da1afc70167d8be936f527d6a9b7862b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03581",
    "kind": "arxiv",
    "version": 1
  }
}