Pith Number

pith:A4YCTZKI

pith:2020:A4YCTZKICJG6FY3653PAUA4LEC

not attested not anchored not stored refs pending

Photon spheres, ISCOs, and OSCOs: Astrophysical observables for regular black holes with asymptotically Minkowski cores

Alex Simpson (Victoria University of Wellington), Matt Visser (Victoria University of Wellington), Thomas Berry (Victoria University of Wellington)

arxiv:2008.13308 v2 · 2020-08-31 · 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{A4YCTZKICJG6FY3653PAUA4LEC}

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 external magnetic fields on charged particle motion around a Schwarzschild-like black hole

Receipt and verification

First computed	2026-07-05T01:33:23.010438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

073029e548124de2e37eeede0a038b20865fa1d46985d53fb77da16ec1adac9d

Aliases

arxiv: 2008.13308 · arxiv_version: 2008.13308v2 · doi: 10.48550/arxiv.2008.13308 · pith_short_12: A4YCTZKICJG6 · pith_short_16: A4YCTZKICJG6FY36 · pith_short_8: A4YCTZKI

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/A4YCTZKICJG6FY3653PAUA4LEC \
  | 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: 073029e548124de2e37eeede0a038b20865fa1d46985d53fb77da16ec1adac9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70886b514f16bc073e12dd97f7fee0b89851556857e8b329e7b18f793b880ef2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-08-31T01:03:36Z",
    "title_canon_sha256": "87837a344d3e20c6b9931172f3e6f0e491b85174cc5d2d03f95349b80bfe1775"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.13308",
    "kind": "arxiv",
    "version": 2
  }
}