Pith Number

pith:TQL4J6ZH

pith:2009:TQL4J6ZHKMROUKQ6SPSUZV5A6V

not attested not anchored not stored refs pending

Vacuum polarization effects on quasinormal modes in electrically charged black hole spacetimes

Jeferson de Oliveira, Owen Pavel Fernandez Piedra

arxiv:0902.1487 v4 · 2009-02-09 · 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{TQL4J6ZHKMROUKQ6SPSUZV5A6V}

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	2026-05-18T04:18:13.163372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c17c4fb275322ea2a1e93e54cd7a0f566585da3edd01feec928dfcc3e08c7ad

Aliases

arxiv: 0902.1487 · arxiv_version: 0902.1487v4 · doi: 10.48550/arxiv.0902.1487 · pith_short_12: TQL4J6ZHKMRO · pith_short_16: TQL4J6ZHKMROUKQ6 · pith_short_8: TQL4J6ZH

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/TQL4J6ZHKMROUKQ6SPSUZV5A6V \
  | 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: 9c17c4fb275322ea2a1e93e54cd7a0f566585da3edd01feec928dfcc3e08c7ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1d0e57ec6c8129a34f3d699e90247f0a351321c5dfaf99b2eaec3246ea2349f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-02-09T18:08:01Z",
    "title_canon_sha256": "355e0dab70f40e0a1a2cbd1fe0f2ef3775921911b6b94bc789e2b0d195fe5952"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1487",
    "kind": "arxiv",
    "version": 4
  }
}