Pith Number

pith:CU2ESKM4

pith:2021:CU2ESKM4WGLKXO4WZN2IXUPQQM

not attested not anchored not stored refs pending

GW190521 as a black-hole merger coincident with the ZTF19abanrhr flare

Barry McKernan, Juan Calder\'on Bustillo, K. E. S. Ford, Koustav Chandra, Samson H.W. Leong

arxiv:2112.12481 v1 · 2021-12-23 · gr-qc · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CU2ESKM4WGLKXO4WZN2IXUPQQM}

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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

3 papers in Pith

AGN-driven BBH mergers: Black hole populations and hierarchical growth across the AGN parameter space

Gravitational Wave Hyperbolic Catalog: Reanalyzing High-Mass Gravitational Wave Signals Using Hyperbolic Waveforms

Cosmological Constraints from GW-FRB Associations without Redshift Measurements for LIGO-Virgo and Cosmic Explorer

Receipt and verification

First computed	2026-07-05T03:43:27.897306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

153449299cb196abbb96cb748bd1f08327b394a4d9f649735dd808c176aaf685

Aliases

arxiv: 2112.12481 · arxiv_version: 2112.12481v1 · doi: 10.48550/arxiv.2112.12481 · pith_short_12: CU2ESKM4WGLK · pith_short_16: CU2ESKM4WGLKXO4W · pith_short_8: CU2ESKM4

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/CU2ESKM4WGLKXO4WZN2IXUPQQM \
  | 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: 153449299cb196abbb96cb748bd1f08327b394a4d9f649735dd808c176aaf685

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f63d67aaa9a34a609682fc00e718de2bc64257727a89dd4f2881fbb51f4fdbb",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-12-23T12:13:06Z",
    "title_canon_sha256": "d2f1bd75a76c3abe0b916b8e20bbc411d911f7aeb9e6e60f7a05f95a30e0b794"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.12481",
    "kind": "arxiv",
    "version": 1
  }
}