Pith Number

pith:7NBMUSQE

pith:2021:7NBMUSQERCBWC2TDFNZCJ7OTVR

not attested not anchored not stored refs pending

Gedanken experiments at high-order approximation: Kerr black hole cannot be overspun

Aofei Sang, Jie Jiang

arxiv:2108.03454 v1 · 2021-08-07 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NBMUSQERCBWC2TDFNZCJ7OTVR}

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

Trapped Surface as a Cosmic Censor

Receipt and verification

First computed	2026-07-05T03:44:11.862215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb42ca4a048883616a632b7224fdd3ac60f2daac4133b5c056467a31be6dd49c

Aliases

arxiv: 2108.03454 · arxiv_version: 2108.03454v1 · doi: 10.48550/arxiv.2108.03454 · pith_short_12: 7NBMUSQERCBW · pith_short_16: 7NBMUSQERCBWC2TD · pith_short_8: 7NBMUSQE

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/7NBMUSQERCBWC2TDFNZCJ7OTVR \
  | 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: fb42ca4a048883616a632b7224fdd3ac60f2daac4133b5c056467a31be6dd49c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05a2e7838f477fc3dccf4d91ed6613c97302a6976d822f3756ac04bb74fa88d3",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-08-07T13:57:40Z",
    "title_canon_sha256": "05a64e4d30749871e2e66f6efcd95d1758946b8813561392ec14ef90bde60581"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.03454",
    "kind": "arxiv",
    "version": 1
  }
}