Pith Number

pith:HU3CJ637

pith:2025:HU3CJ637VYAT37FIWDLPISP2ZS

not attested not anchored not stored refs pending

Image of a time-dependent rotating regular black hole

En-Wei Liang, Kai Lin, Li-Fang Li, Qing-Quan Jiang, Sen Guo, Yu Liang, Yu-Xiang Huang

arxiv:2507.21628 v1 · 2025-07-29 · astro-ph.HE · 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{HU3CJ637VYAT37FIWDLPISP2ZS}

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	2026-07-05T11:45:03.470289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d3624fb7fae013dfca8b0d6f449faccbae05cac468b2c880a3c527acc6a5b3a

Aliases

arxiv: 2507.21628 · arxiv_version: 2507.21628v1 · doi: 10.48550/arxiv.2507.21628 · pith_short_12: HU3CJ637VYAT · pith_short_16: HU3CJ637VYAT37FI · pith_short_8: HU3CJ637

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/HU3CJ637VYAT37FIWDLPISP2ZS \
  | 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: 3d3624fb7fae013dfca8b0d6f449faccbae05cac468b2c880a3c527acc6a5b3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b22c5e4f1b58be8149ea4edbb8af568ea4fdb724fb9083d220ab6ff4b3de490f",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-07-29T09:37:59Z",
    "title_canon_sha256": "87dc483f737973392011c4552f97d3ba027f6fd69347304bc70fe94a1820861c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21628",
    "kind": "arxiv",
    "version": 1
  }
}