Pith Number

pith:ZAYBFPUC

pith:2022:ZAYBFPUCLHQAOPOSBQ6FL2BF2J

not attested not anchored not stored refs pending

Which black hole formed first? Mass-ratio reversal in massive binary stars from gravitational-wave data

Davide Gerosa, Floor S. Broekgaarden, Matthew Mould, Nathan Steinle

arxiv:2205.12329 v2 · 2022-05-24 · astro-ph.HE · astro-ph.SR · 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{ZAYBFPUCLHQAOPOSBQ6FL2BF2J}

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

1 paper in Pith

Disentangling spinning and nonspinning binary black hole populations with spin sorting

Receipt and verification

First computed	2026-07-05T05:08:15.823082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c83012be8259e0073dd20c3c55e825d2734dc726c8662e5b36fcf40cf78e51b2

Aliases

arxiv: 2205.12329 · arxiv_version: 2205.12329v2 · doi: 10.48550/arxiv.2205.12329 · pith_short_12: ZAYBFPUCLHQA · pith_short_16: ZAYBFPUCLHQAOPOS · pith_short_8: ZAYBFPUC

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/ZAYBFPUCLHQAOPOSBQ6FL2BF2J \
  | 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: c83012be8259e0073dd20c3c55e825d2734dc726c8662e5b36fcf40cf78e51b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad4ca7cf9b56072f6b48d76c9714d5476c70c787cb6247b59455bf1e0d006720",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-05-24T19:17:34Z",
    "title_canon_sha256": "a1138a736c8be782a66b2a791bdfecf38c147d78fc81d63f547cd76d1bcc1fcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.12329",
    "kind": "arxiv",
    "version": 2
  }
}