Pith Number

pith:7CTHV4QI

pith:2021:7CTHV4QIHBIYZTGQBGLINJUUXZ

not attested not anchored not stored refs pending

Decoding a black hole metric from the interferometric pattern of the relativistic images of a compact source

F. Aratore, V. Bozza

arxiv:2107.05723 v2 · 2021-07-12 · 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{7CTHV4QIHBIYZTGQBGLINJUUXZ}

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

Observational constraints on nonlocal black holes via gravitational lensing

Receipt and verification

First computed	2026-07-05T03:26:00.262644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8a67af20838518cccd0099686a694be78342fc74767273341d2d514eff4ade4

Aliases

arxiv: 2107.05723 · arxiv_version: 2107.05723v2 · doi: 10.48550/arxiv.2107.05723 · pith_short_12: 7CTHV4QIHBIY · pith_short_16: 7CTHV4QIHBIYZTGQ · pith_short_8: 7CTHV4QI

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/7CTHV4QIHBIYZTGQBGLINJUUXZ \
  | 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: f8a67af20838518cccd0099686a694be78342fc74767273341d2d514eff4ade4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2721f6277c07ec4c5a34266f811bd946d6c867f140aa23f582207e13a2a3dcef",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-07-12T20:29:17Z",
    "title_canon_sha256": "a4448edea42ac92aa95de938c85b7b64af082c9e896109b144b39141ca58d776"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.05723",
    "kind": "arxiv",
    "version": 2
  }
}