Pith Number

pith:I4CZNYO7

pith:2015:I4CZNYO7VANVRXG6QLM42W2PQW

not attested not anchored not stored refs pending

A coordinate-independent characterization of a black hole shadow

A. A. Abdujabbarov, B. J. Ahmedov, L. Rezzolla

arxiv:1503.09054 v2 · 2015-03-30 · gr-qc · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I4CZNYO7VANVRXG6QLM42W2PQW}

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

Probing Kalb-Ramond gravity with charged rotating black holes: constraints from EHT observations

Receipt and verification

First computed	2026-05-18T01:13:05.137001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

470596e1dfa81b58dcde82d9cd5b4f85954c522f60a4cd4df24f9c41e50f8863

Aliases

arxiv: 1503.09054 · arxiv_version: 1503.09054v2 · doi: 10.48550/arxiv.1503.09054 · pith_short_12: I4CZNYO7VANV · pith_short_16: I4CZNYO7VANVRXG6 · pith_short_8: I4CZNYO7

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/I4CZNYO7VANVRXG6QLM42W2PQW \
  | 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: 470596e1dfa81b58dcde82d9cd5b4f85954c522f60a4cd4df24f9c41e50f8863

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fac77620c76443630133fb5244b93fe958789ebb641cd885efcac327be80f38d",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-03-30T10:21:41Z",
    "title_canon_sha256": "7c525094bb89f1cd12882dd1ac72037786894318d66aa5de7519e6349e398ddb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.09054",
    "kind": "arxiv",
    "version": 2
  }
}