Pith Number

pith:YKRJR5XM

pith:2023:YKRJR5XMLTC7YLBC6EAGAEF34V

not attested not anchored not stored refs pending

Is a black hole shadow a reliable test of the no-hair theorem?

George Pappas, Kostas Glampedakis

arxiv:2302.06140 v2 · 2023-02-13 · gr-qc · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YKRJR5XMLTC7YLBC6EAGAEF34V}

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

Reshaping the inner shadow of a Kerr black hole by a torn accretion disk

Receipt and verification

First computed	2026-07-05T05:50:13.309277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2a298f6ec5cc5fc2c22f1006010bbe549fcbf1a8ec604ca9341e459f9f13c94

Aliases

arxiv: 2302.06140 · arxiv_version: 2302.06140v2 · doi: 10.48550/arxiv.2302.06140 · pith_short_12: YKRJR5XMLTC7 · pith_short_16: YKRJR5XMLTC7YLBC · pith_short_8: YKRJR5XM

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/YKRJR5XMLTC7YLBC6EAGAEF34V \
  | 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: c2a298f6ec5cc5fc2c22f1006010bbe549fcbf1a8ec604ca9341e459f9f13c94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f865c687e3ced00cca7cb5ddef024b1281019b7180bb580160e2f579d1e9575b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2023-02-13T07:00:42Z",
    "title_canon_sha256": "6ffbc3210762032ee865c15fdbd73e515695141bd3c5ca9fd3c6f62098406bf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.06140",
    "kind": "arxiv",
    "version": 2
  }
}