Pith Number

pith:5JEQZ2ZY

pith:2020:5JEQZ2ZY4ZREUVPREIT5LVUWBP

not attested not anchored not stored refs pending

Formation of Binary Black Holes Similar to GW190521 with a Total Mass of $\sim 150\,M_{\odot}$ from Population III Binary Star Evolution

Hiroyuki Nakano, Takashi Nakamura, Tomoya Kinugawa

arxiv:2009.06922 v2 · 2020-09-15 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5JEQZ2ZY4ZREUVPREIT5LVUWBP}

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.

Cited by

2 papers in Pith

GWTC-2.1: Deep Extended Catalog of Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run

Signatures of a subpopulation of hierarchical mergers in the GWTC-4 gravitational-wave dataset

Receipt and verification

First computed	2026-07-05T01:59:32.868200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea490ceb38e6624a55f12227d5d6960bfb61cf5faec72e64a9203060fe9324af

Aliases

arxiv: 2009.06922 · arxiv_version: 2009.06922v2 · doi: 10.48550/arxiv.2009.06922 · pith_short_12: 5JEQZ2ZY4ZRE · pith_short_16: 5JEQZ2ZY4ZREUVPR · pith_short_8: 5JEQZ2ZY

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/5JEQZ2ZY4ZREUVPREIT5LVUWBP \
  | 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: ea490ceb38e6624a55f12227d5d6960bfb61cf5faec72e64a9203060fe9324af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f57853b8a19bc8d9c61ae56e70bfc71d28520a8d3c374c0732fa60c9ddb8df3c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-09-15T08:35:40Z",
    "title_canon_sha256": "4358c4650b2158fbeab415045389ba42a1b0355e3af79978b001f1bbfca10a5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.06922",
    "kind": "arxiv",
    "version": 2
  }
}