Pith Number

pith:KFKFP3G4

pith:2026:KFKFP3G45G5FUWPN5NC2RXTECP

not attested not anchored not stored refs pending

Establishing Compactness as a Population Observable in Gravitational-Wave Astronomy

Charlie Hoy, Frank Ohme, Mark Hannam, Shrobana Ghosh

arxiv:2606.31364 v1 · 2026-06-30 · 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{KFKFP3G45G5FUWPN5NC2RXTECP}

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	2026-07-01T01:18:00.625171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

515457ecdce9ba5a59edeb45a8de6413f20b5951a52978569f4e65c04539a81a

Aliases

arxiv: 2606.31364 · arxiv_version: 2606.31364v1 · doi: 10.48550/arxiv.2606.31364 · pith_short_12: KFKFP3G45G5F · pith_short_16: KFKFP3G45G5FUWPN · pith_short_8: KFKFP3G4

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/KFKFP3G45G5FUWPN5NC2RXTECP \
  | 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: 515457ecdce9ba5a59edeb45a8de6413f20b5951a52978569f4e65c04539a81a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c96bb0b00442a823fbe3574c1ae89f5feaae6deee8d1e4bf9df56d2cad050f9",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-06-30T08:58:24Z",
    "title_canon_sha256": "a4a786cc660dd151014e7e1c51d19867b6f86a01921194f5f63408b4cda571b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31364",
    "kind": "arxiv",
    "version": 1
  }
}