Pith Number

pith:HJFLVJ6X

pith:2021:HJFLVJ6XITLKZCYB7H26PS6JAT

not attested not anchored not stored refs pending

Calculating black hole shadows: Review of analytical studies

Oleg Yu. Tsupko, Volker Perlick

arxiv:2105.07101 v2 · 2021-05-15 · 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{HJFLVJ6XITLKZCYB7H26PS6JAT}

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

30 papers in Pith

Observational Limits on Einasto Dark Matter Parameters from Event Horizon Telescope Images of Sgr A$^{*}$ and M87$^{*}$

Wave and particle probes of a regular T-duality-inspired black hole with gravitational self-energy

Scalar and Electromagnetic Perturbations around a Black Hole with a Topological Defect: Quasinormal Modes and Quasi-bound States in a Plasma Medium

Shadow dependent phenomenology framework for rotating black hole metric

Constitutive birefringence and critical curves in the rotating Garc\'ia--D\'iaz black hole

Receipt and verification

First computed	2026-07-05T03:51:43.047779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a4abaa7d744d6ac8b01f9f5e7cbc904f2c73f27b6bbb457ff74b430c29298d0

Aliases

arxiv: 2105.07101 · arxiv_version: 2105.07101v2 · doi: 10.48550/arxiv.2105.07101 · pith_short_12: HJFLVJ6XITLK · pith_short_16: HJFLVJ6XITLKZCYB · pith_short_8: HJFLVJ6X

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/HJFLVJ6XITLKZCYB7H26PS6JAT \
  | 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: 3a4abaa7d744d6ac8b01f9f5e7cbc904f2c73f27b6bbb457ff74b430c29298d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f23634e032f5761fe28780830917c6e5544c72c61f9cb3ddd1a293e4cc9c9f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-05-15T00:00:17Z",
    "title_canon_sha256": "391e94c73a5296cfdf116090a682009e658d3d89427213cafe8c7220321dc722"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.07101",
    "kind": "arxiv",
    "version": 2
  }
}