Pith Number

pith:4OG5YEHD

pith:2022:4OG5YEHDW6IHVSR3QZJ7GMY66X

not attested not anchored not stored refs pending

Equivalence between two charged black holes in dynamics of orbits outside the event horizons

Hongxing Zhang, Naying Zhou, Wenfang Liu, Xin Wu

arxiv:2209.08439 v1 · 2022-09-18 · gr-qc · physics.comp-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4OG5YEHDW6IHVSR3QZJ7GMY66X}

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.

Receipt and verification

First computed	2026-07-05T04:58:41.325310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e38ddc10e3b7907aca3b8653f3331ef5fda316c952d43cd3efe56719fd663a29

Aliases

arxiv: 2209.08439 · arxiv_version: 2209.08439v1 · doi: 10.48550/arxiv.2209.08439 · pith_short_12: 4OG5YEHDW6IH · pith_short_16: 4OG5YEHDW6IHVSR3 · pith_short_8: 4OG5YEHD

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/4OG5YEHDW6IHVSR3QZJ7GMY66X \
  | 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: e38ddc10e3b7907aca3b8653f3331ef5fda316c952d43cd3efe56719fd663a29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "593175156feba392d983514d620cd53ac2948e367cdbeddef0ce6d0f5b010285",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-09-18T01:31:00Z",
    "title_canon_sha256": "af1486d81c3d20212b55725101f89ff700e9ec070ac265f2e69c0722a83141aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.08439",
    "kind": "arxiv",
    "version": 1
  }
}