Pith Number

pith:OQSU3C43

pith:2022:OQSU3C43YIN6AKGOOL77IGN76X

not attested not anchored not stored refs pending

Photon ring test of the Kerr hypothesis: Variation in the ring shape

Alexandru Lupsasca, Fr\'ed\'eric Vincent, Hadrien Paugnat, Maciek Wielgus

arxiv:2206.02781 v3 · 2022-06-06 · 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{OQSU3C43YIN6AKGOOL77IGN76X}

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

2 papers in Pith

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

Observational signatures of negative mass wormholes through their shadows

Receipt and verification

First computed	2026-07-05T06:12:32.559702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74254d8b9bc21be028ce72fff419bff5c35e3a6ff2aa8cbbca70ecec3deb4f6b

Aliases

arxiv: 2206.02781 · arxiv_version: 2206.02781v3 · doi: 10.48550/arxiv.2206.02781 · pith_short_12: OQSU3C43YIN6 · pith_short_16: OQSU3C43YIN6AKGO · pith_short_8: OQSU3C43

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/OQSU3C43YIN6AKGOOL77IGN76X \
  | 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: 74254d8b9bc21be028ce72fff419bff5c35e3a6ff2aa8cbbca70ecec3deb4f6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53e48a1ba051c61e6fec7993609887d287a684b318f42bed0a83042fa4de7572",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-06-06T17:59:58Z",
    "title_canon_sha256": "91c30204e3d241da7e8adb7f3144444e3ad98c625f6b7da1999b7bed278029b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.02781",
    "kind": "arxiv",
    "version": 3
  }
}