Pith Number

pith:IR265WQU

pith:2013:IR265WQUFDRUP2H5AI577LPVPI

not attested not anchored not stored refs pending

On Quasinormal Modes for Gravitational Perturbations of Bardeen Black Hole

S. C. Ulhoa

arxiv:1303.3143 v2 · 2013-03-13 · 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{IR265WQUFDRUP2H5AI577LPVPI}

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	2026-05-18T02:47:31.615125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4475eeda1428e347e8fd023bffadf57a036a9634cba2bc09cf991fd527822cc6

Aliases

arxiv: 1303.3143 · arxiv_version: 1303.3143v2 · doi: 10.48550/arxiv.1303.3143 · pith_short_12: IR265WQUFDRU · pith_short_16: IR265WQUFDRUP2H5 · pith_short_8: IR265WQU

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/IR265WQUFDRUP2H5AI577LPVPI \
  | 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: 4475eeda1428e347e8fd023bffadf57a036a9634cba2bc09cf991fd527822cc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a17a600f74144d7a9347abe547b676034f9960412a7c481a4b65cb5e30343e2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-03-13T12:41:27Z",
    "title_canon_sha256": "b19960f8a3b5f5518cdae3b4641174e317512ca0a2f5f8002e22f65cfc527e11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3143",
    "kind": "arxiv",
    "version": 2
  }
}