Pith Number

pith:KB2NT2V7

pith:2023:KB2NT2V72FJK5EBVRL5QBM3OS4

not attested not anchored not stored refs pending

Photon rings as tests for alternative spherically symmetric geometries with thin accretion disks

Diego Rubiera-Garcia, Francisco S. N. Lobo, Gonzalo J. Olmo, Lu\'is F. Dias da Silva

arxiv:2307.06778 v2 · 2023-07-13 · 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{KB2NT2V72FJK5EBVRL5QBM3OS4}

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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

Photon Propagation and Black Hole Imaging in Kruglov Nonlinear Electrodynamics

Receipt and verification

First computed	2026-07-05T07:13:24.003303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5074d9eabfd152ae90358afb00b36e97065eb78c60c7f7e6606579c59f22ba72

Aliases

arxiv: 2307.06778 · arxiv_version: 2307.06778v2 · doi: 10.48550/arxiv.2307.06778 · pith_short_12: KB2NT2V72FJK · pith_short_16: KB2NT2V72FJK5EBV · pith_short_8: KB2NT2V7

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/KB2NT2V72FJK5EBVRL5QBM3OS4 \
  | 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: 5074d9eabfd152ae90358afb00b36e97065eb78c60c7f7e6606579c59f22ba72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e148284af5a9f99dfced0aa94b6a9ccd000bf803f111b5f1b2eaa3b9d8f9a433",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2023-07-13T14:36:29Z",
    "title_canon_sha256": "eb6c453c890de4c3433e4eb7d781bd1f52c1b17199545e05775b90be7a0d9b8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.06778",
    "kind": "arxiv",
    "version": 2
  }
}