Pith Number

pith:XRXQK5OI

pith:2024:XRXQK5OIR67G5JTFWZ4DF5R6W6

not attested not anchored not stored refs pending

Forward Ray Tracing and Hot Spots in Kerr Spacetime

Lihang Zhou, Vitor Cardoso, Yifan Chen, Zhen Zhong

arxiv:2408.16049 v2 · 2024-08-28 · 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{XRXQK5OIR67G5JTFWZ4DF5R6W6}

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

Influence of Observer Inclination and Spacetime Structure on Photon Ring Observables

Receipt and verification

First computed	2026-07-05T10:41:48.318310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc6f0575c88fbe6ea665b67832f63eb7884afeb971af7dd5523b5cc9885e1a01

Aliases

arxiv: 2408.16049 · arxiv_version: 2408.16049v2 · doi: 10.48550/arxiv.2408.16049 · pith_short_12: XRXQK5OIR67G · pith_short_16: XRXQK5OIR67G5JTF · pith_short_8: XRXQK5OI

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/XRXQK5OIR67G5JTFWZ4DF5R6W6 \
  | 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: bc6f0575c88fbe6ea665b67832f63eb7884afeb971af7dd5523b5cc9885e1a01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaa4fc543db9c31bf5c74af46122eefef33bdbf7143317c2cdaa6bacc763048c",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2024-08-28T18:00:01Z",
    "title_canon_sha256": "6c390bac3662a47ae64b8939db2d00425887e511ab77824d30ac3f6e2844d18e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.16049",
    "kind": "arxiv",
    "version": 2
  }
}