Pith Number

pith:2IPPGH5G

pith:2022:2IPPGH5GG3NZQGH4EEAGEXIEEB

not attested not anchored not stored refs pending

Multi-level images around Kerr-Newman black holes

Bin Chen, Haopeng Yan, Minyong Guo, Peng Liu, Yehui Hou

arxiv:2203.02755 v2 · 2022-03-05 · 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{2IPPGH5GG3NZQGH4EEAGEXIEEB}

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	2026-07-05T05:01:20.347337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d21ef31fa636db9818fc2100625d042045e172969cd2b27d2288c59ec395e7bb

Aliases

arxiv: 2203.02755 · arxiv_version: 2203.02755v2 · doi: 10.48550/arxiv.2203.02755 · pith_short_12: 2IPPGH5GG3NZ · pith_short_16: 2IPPGH5GG3NZQGH4 · pith_short_8: 2IPPGH5G

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/2IPPGH5GG3NZQGH4EEAGEXIEEB \
  | 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: d21ef31fa636db9818fc2100625d042045e172969cd2b27d2288c59ec395e7bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2630d7d3e7c879aa42fd5733c22b9ff7de68397dd391b150dc2fcf204a988f4f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-03-05T14:19:18Z",
    "title_canon_sha256": "4cba481cb07c20825e9769959e8ff9e41db9052f88dba8fcfc8a4048efe4d8e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.02755",
    "kind": "arxiv",
    "version": 2
  }
}