Pith Number

pith:P6JTFB43

pith:2021:P6JTFB43LXK7SLAZACBBSBCIVI

not attested not anchored not stored refs pending

High mass but low spin: an exclusion region to rule out hierarchical black-hole mergers as a mechanism to populate the pair-instability mass gap

Alberto Vecchio, Davide Gerosa, Nicola Giacobbo

arxiv:2104.11247 v2 · 2021-04-22 · astro-ph.HE · 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{P6JTFB43LXK7SLAZACBBSBCIVI}

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

Recoil kicks from binary black hole mergers in GWTC catalogs: implications for retention and hierarchical mergers

Receipt and verification

First computed	2026-07-05T02:57:19.790887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f9332879b5dd5f92c190082190448aa19c5b9203795074b6bd771407280d822

Aliases

arxiv: 2104.11247 · arxiv_version: 2104.11247v2 · doi: 10.48550/arxiv.2104.11247 · pith_short_12: P6JTFB43LXK7 · pith_short_16: P6JTFB43LXK7SLAZ · pith_short_8: P6JTFB43

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/P6JTFB43LXK7SLAZACBBSBCIVI \
  | 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: 7f9332879b5dd5f92c190082190448aa19c5b9203795074b6bd771407280d822

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70aad4c00064a27f07ff789e56467fbf2fd6135ecba69075e39d33c0c459d767",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-04-22T18:00:02Z",
    "title_canon_sha256": "190271d9bac05f6e557517c221e7299eec6f55c30de666d81a9868bb1eb1fdee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.11247",
    "kind": "arxiv",
    "version": 2
  }
}