Pith Number

pith:NIV4SQGG

pith:2022:NIV4SQGGKGLEGVQEY26MHBIHNE

not attested not anchored not stored refs pending

Shielding a charged black hole

Justin C. Feng, Sumanta Chakraborty, Vitor Cardoso

arxiv:2211.05261 v2 · 2022-11-09 · 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{NIV4SQGGKGLEGVQEY26MHBIHNE}

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	2026-07-05T05:45:34.939617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a2bc940c65196435604c6bcc38507690dca532e9c6d6702105ea4c78e3d7e32

Aliases

arxiv: 2211.05261 · arxiv_version: 2211.05261v2 · doi: 10.48550/arxiv.2211.05261 · pith_short_12: NIV4SQGGKGLE · pith_short_16: NIV4SQGGKGLEGVQE · pith_short_8: NIV4SQGG

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/NIV4SQGGKGLEGVQEY26MHBIHNE \
  | 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: 6a2bc940c65196435604c6bcc38507690dca532e9c6d6702105ea4c78e3d7e32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b21c3e8148c1e88dccfa48203e5c569f7c45f1da742cdbbc85360ea1531c341f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-11-09T23:40:17Z",
    "title_canon_sha256": "09bf9526b6d158c79169056acea38247e363b50de2a170da0378e946c796a93e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.05261",
    "kind": "arxiv",
    "version": 2
  }
}