Pith Number

pith:ZQVDPNA4

pith:2019:ZQVDPNA4OIXBKOVUB4WOXJDLBB

not attested not anchored not stored refs pending

Higher Order Linear Stability and Instability of Reissner-Nordstr\"om's Cauchy Horizon

Jo\~ao L. Costa, Pedro M. Gir\~ao

arxiv:1902.10726 v1 · 2019-02-27 · gr-qc · math-ph · math.AP · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQVDPNA4OIXBKOVUB4WOXJDLBB}

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	2026-05-17T23:52:29.897855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc2a37b41c722e153ab40f2ceba46b0841e309277d87b993f70f21c1cddb2903

Aliases

arxiv: 1902.10726 · arxiv_version: 1902.10726v1 · doi: 10.48550/arxiv.1902.10726 · pith_short_12: ZQVDPNA4OIXB · pith_short_16: ZQVDPNA4OIXBKOVU · pith_short_8: ZQVDPNA4

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/ZQVDPNA4OIXBKOVUB4WOXJDLBB \
  | 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: cc2a37b41c722e153ab40f2ceba46b0841e309277d87b993f70f21c1cddb2903

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "203b586d1f70748cfb224841e1586a3d96822396929e5141599cfacdd7ba1ac0",
    "cross_cats_sorted": [
      "math-ph",
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-02-27T19:00:14Z",
    "title_canon_sha256": "4664ea83af53afd5e499eeeab372fc64ddebca122c87108bdda6c7bfb3c90564"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10726",
    "kind": "arxiv",
    "version": 1
  }
}