Pith Number

pith:VHGBSE6P

pith:2018:VHGBSE6PB2VTUC6K2L4JNPAYBH

not attested not anchored not stored refs pending

The Current Ability to Test Theories of Gravity with Black Hole Shadows

Christian M. Fromm, Hector Olivares, Heino Falcke, Luciano Rezzolla, Mariafelicia De Laurentis, Michael Kramer, Oliver Porth, Yosuke Mizuno, Ziri Younsi

arxiv:1804.05812 v1 · 2018-04-16 · astro-ph.GA · astro-ph.HE · 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{VHGBSE6PB2VTUC6K2L4JNPAYBH}

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

5 papers in Pith

Millimeter-wave Monitoring of Active Galactic Nuclei with the Africa Millimetre Telescope

Shadow of the Scalar Hairy Black Hole with Inverted Higgs Potential

Polarization Signatures from GRMHD Simulations of Black Hole Accretion

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

GRMHD accretion beyond the black hole paradigm: Light from within the shadow

Receipt and verification

First computed	2026-05-18T00:06:28.794939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9cc1913cf0eab3a0bcad2f896bc1809fa46899061fe524e449984acdf6621a6

Aliases

arxiv: 1804.05812 · arxiv_version: 1804.05812v1 · doi: 10.48550/arxiv.1804.05812 · pith_short_12: VHGBSE6PB2VT · pith_short_16: VHGBSE6PB2VTUC6K · pith_short_8: VHGBSE6P

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/VHGBSE6PB2VTUC6K2L4JNPAYBH \
  | 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: a9cc1913cf0eab3a0bcad2f896bc1809fa46899061fe524e449984acdf6621a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef65dc6df388fab8838a5cdadfea1e4e6a9dbd88a8792a5b8eb2e992f601f8df",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-16T17:30:29Z",
    "title_canon_sha256": "e4e2fb389f12ff67f7bd0f16e7bb09ce8f49e88b99c0bc50ca0b78c94a99442f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05812",
    "kind": "arxiv",
    "version": 1
  }
}