Pith Number

pith:56QNF2GS

pith:2026:56QNF2GSQZTJFLMCDZQKS4QBSL

not attested not anchored not stored refs pending

On the Astrophysical Origin of Binary Black Hole Subpopulations: A Tale of Three Channels?

Anarya Ray, Michael Zevin, Shirsha Mukherjee, Vicky Kalogera

arxiv:2603.17987 v2 · 2026-03-18 · astro-ph.HE · astro-ph.GA · 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{56QNF2GSQZTJFLMCDZQKS4QBSL}

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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

16 papers in Pith

Evidence for additional structure in the effective spin distribution hints at multiple formation pathways in GWTC-5.0

Distinct spin properties and astrophysical origin of low mass binary black holes in gravitational wave data

BBH-Genesis: Disentangling Binary Black Hole Formation Channels with GWTC-4

Twin Peaks: Resolving Features in the Binary Black Hole Mass Function with COSMIC-METISSE

Joint population and strong-lensing inference for resolved gravitational-wave events probes the black-hole merger rate beyond the peak of star formation

Receipt and verification

First computed	2026-07-08T01:18:27.276725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efa0d2e8d2866692ad821e60a9720192ccc2f1104a9a0b25be11393bd969a241

Aliases

arxiv: 2603.17987 · arxiv_version: 2603.17987v2 · doi: 10.48550/arxiv.2603.17987 · pith_short_12: 56QNF2GSQZTJ · pith_short_16: 56QNF2GSQZTJFLMC · pith_short_8: 56QNF2GS

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/56QNF2GSQZTJFLMCDZQKS4QBSL \
  | 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: efa0d2e8d2866692ad821e60a9720192ccc2f1104a9a0b25be11393bd969a241

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32f5f68fc18dad636f8fc07b6b9d5876ec32573633f69537ecc91ce3802eddc6",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-03-18T17:49:14Z",
    "title_canon_sha256": "245085e573e98cf68d9604495c1ff1aa1d5d8e8f4c57ea5be7e646fa58331f78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.17987",
    "kind": "arxiv",
    "version": 2
  }
}