Pith Number

pith:4QJI5I2B

pith:2020:4QJI5I2BITEZUZEY32NRUXRTCP

not attested not anchored not stored refs pending

Dual supermassive black holes at close separation revealed by the Hyper Suprime-Cam Subaru Strategic Program

Andy Goulding, Chiaki Hikage, Hyewon Suh, Issha Kayo, John D. Silverman, Kazuhiro Shimasaku, Kazushi Iwasawa, Khee-Gan Lee, Knud Jahnke, Kotaro Kohno, Malte Schramm, Masafusa Onoue, Masami Ouchi, Masamune Oguri, Masatoshi Imanishi, Michael A. Strauss, Naoki Yasuda, Nao Suzuki, Nobunari Kashikawa, Rogemar Riffel, Seiji Fujimoto, Shenli Tang, Tilman Hartwig, Tohru Nagao, Toshihiro Kawaguchi, Wentao Luo, Xuheng Ding, Yoshiaki Ono, Yoshiaki Taniguchi, Yoshihiro Ueda, Yoshiki Matsuoka, Yoshiki Toba, Yuichi Matsuda

arxiv:2007.05581 v1 · 2020-07-10 · 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{4QJI5I2BITEZUZEY32NRUXRTCP}

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	2026-07-05T01:32:10.516425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4128ea34144c99a6498de9b1a5e3313d7a77079c26527fb6cf54ea6e36fc202

Aliases

arxiv: 2007.05581 · arxiv_version: 2007.05581v1 · doi: 10.48550/arxiv.2007.05581 · pith_short_12: 4QJI5I2BITEZ · pith_short_16: 4QJI5I2BITEZUZEY · pith_short_8: 4QJI5I2B

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/4QJI5I2BITEZUZEY32NRUXRTCP \
  | 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: e4128ea34144c99a6498de9b1a5e3313d7a77079c26527fb6cf54ea6e36fc202

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baebb3cbdd1d73557d3d785cb4577596b453ee7bfef8f0662345e51a37467c50",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-07-10T19:35:04Z",
    "title_canon_sha256": "f232372daf2a785ee2cac4ee149e7d36eefd165735cf3972bc2c2be8478b5a57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.05581",
    "kind": "arxiv",
    "version": 1
  }
}