Pith Number

pith:57WHGE3S

pith:2024:57WHGE3SAJ7DB6IFL62FB25AXJ

not attested not anchored not stored refs pending

A Beginner's Guide to Black Hole Imaging and Associated Tests of General Relativity

Alexandru Lupsasca, Bart Ripperda, Daniel R. Mayerson, Seppe Staelens

arxiv:2402.01290 v1 · 2024-02-02 · gr-qc · astro-ph.HE · 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{57WHGE3SAJ7DB6IFL62FB25AXJ}

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

Quantitative Black Hole Imaging Laboratory with the Black Hole Vision App: I. Schwarzschild Spacetime

Receipt and verification

First computed	2026-07-05T07:40:33.228610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efec731372027e30f9055fb450eba0ba66f9e32d4f9503b22ccd3a9a97fa866a

Aliases

arxiv: 2402.01290 · arxiv_version: 2402.01290v1 · doi: 10.48550/arxiv.2402.01290 · pith_short_12: 57WHGE3SAJ7D · pith_short_16: 57WHGE3SAJ7DB6IF · pith_short_8: 57WHGE3S

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/57WHGE3SAJ7DB6IFL62FB25AXJ \
  | 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: efec731372027e30f9055fb450eba0ba66f9e32d4f9503b22ccd3a9a97fa866a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e40875ba4b5d310f1dd32ebeed0afd5ebaebda937727a1ae2e84fc53ecb1dac",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2024-02-02T10:26:14Z",
    "title_canon_sha256": "f447e8e443ba1409e30b81965b341b7aec6ad1d700bfab25f60c52b160548d79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.01290",
    "kind": "arxiv",
    "version": 1
  }
}