Pith Number

pith:OPY7BFZG

pith:2025:OPY7BFZGG6XY7VZJD77PNAGOLG

not attested not anchored not stored refs pending

A Dual Active Black Hole Candidate with Mass Ratio ~7:1 in a Disk Galaxy

Alexei Moiseev, Guangquan Zeng, Junfeng Wang, Lan Wang, Luis C. Ho, Min Bao, Qiusheng Gu, Xiao Cao, Yan-Mei Chen, Yong Shi, Zhi-Jie Zhou

arxiv:2502.01921 v1 · 2025-02-04 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPY7BFZGG6XY7VZJD77PNAGOLG}

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	2026-07-05T10:09:21.226161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73f1f0972637af8fd7291ffef680ce59927007b524d19fb20490286b812801b6

Aliases

arxiv: 2502.01921 · arxiv_version: 2502.01921v1 · doi: 10.48550/arxiv.2502.01921 · pith_short_12: OPY7BFZGG6XY · pith_short_16: OPY7BFZGG6XY7VZJ · pith_short_8: OPY7BFZG

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/OPY7BFZGG6XY7VZJD77PNAGOLG \
  | 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: 73f1f0972637af8fd7291ffef680ce59927007b524d19fb20490286b812801b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67fd1b8682fc4700865c60d8ff026c3d932627758333dcbc9312ce100a72df37",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-02-04T01:41:00Z",
    "title_canon_sha256": "fc7cda26e5bc3b6a222d9ad3604281979e147fb83082b71346cfe642efc618cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.01921",
    "kind": "arxiv",
    "version": 1
  }
}