Pith Number

pith:FYVTISZ6

pith:2022:FYVTISZ6BFCEITYCOQ6THEP3TA

not attested not anchored not stored refs pending

Instability of spherically-symmetric black holes in Quadratic Gravity

Aaron Held, Jun Zhang

arxiv:2209.01867 v1 · 2022-09-05 · 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{FYVTISZ6BFCEITYCOQ6THEP3TA}

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.

Cited by

1 paper in Pith

When Black Holes Can Wear Pants

Receipt and verification

First computed	2026-07-05T05:57:56.380107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e2b344b3e0944444f02743d3391fb980ae84f849662f4094ea0ecc55845dc2f

Aliases

arxiv: 2209.01867 · arxiv_version: 2209.01867v1 · doi: 10.48550/arxiv.2209.01867 · pith_short_12: FYVTISZ6BFCE · pith_short_16: FYVTISZ6BFCEITYC · pith_short_8: FYVTISZ6

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/FYVTISZ6BFCEITYCOQ6THEP3TA \
  | 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: 2e2b344b3e0944444f02743d3391fb980ae84f849662f4094ea0ecc55845dc2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50931235b1d308e4f170e2420315ea6c668fe31fde57b8fd4ffa9ee54c4bd6cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-09-05T09:56:16Z",
    "title_canon_sha256": "156ebb46c6289d0a39644778db876ac457adbd1d27e0d3b45235407423293ad6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.01867",
    "kind": "arxiv",
    "version": 1
  }
}