Pith Number

pith:7EYAWKA6

pith:2022:7EYAWKA6OX4INUJJAJ2FWQOMGK

not attested not anchored not stored refs pending

Light propagation in a plasma on an axially symmetric and stationary spacetime: Separability of the Hamilton-Jacobi equation and shadow

Barbora Bezdekova, Jiri Bicak, Volker Perlick

arxiv:2204.05593 v3 · 2022-04-12 · 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{7EYAWKA6OX4INUJJAJ2FWQOMGK}

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

Investigating the interplay of the braneworld gravity and the plasma environment on the black hole shadow

A note on methods for computing the critical curve of Kerr-like black holes

Receipt and verification

First computed	2026-07-05T04:49:53.048232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9300b281e75f886d12902745b41cc32abda81b2374ff1ec41e7cfc84b24f7f7

Aliases

arxiv: 2204.05593 · arxiv_version: 2204.05593v3 · doi: 10.48550/arxiv.2204.05593 · pith_short_12: 7EYAWKA6OX4I · pith_short_16: 7EYAWKA6OX4INUJJ · pith_short_8: 7EYAWKA6

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/7EYAWKA6OX4INUJJAJ2FWQOMGK \
  | 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: f9300b281e75f886d12902745b41cc32abda81b2374ff1ec41e7cfc84b24f7f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e9408f505c726880ea0ddcf876453bf4df02c09b58e4df2fbf01c0cc70765f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-04-12T07:48:59Z",
    "title_canon_sha256": "4b76355b4c136e8f5ede599209fee6a05784fa70e1d86c0abc303198e9bc3095"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.05593",
    "kind": "arxiv",
    "version": 3
  }
}