Pith Number

pith:PX53RJ7F

pith:2025:PX53RJ7F5YLXZYS2TTHPLWS6MA

not attested not anchored not stored refs pending

Closing the Mass Window for Stupendously Large Black Holes

Antonio J. Iovino, Christopher Gerlach, Nicholas Leister, Yann Gouttenoire

arxiv:2508.08238 v1 · 2025-08-11 · astro-ph.CO · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PX53RJ7F5YLXZYS2TTHPLWS6MA}

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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

4 papers in Pith

Multi-species Dark Matter with Warmth and Randomness

Gravitational Waves from Black Hole Reheating: The Scalar-Induced Component

Opening the Window of Ultra-Light PBHs by Exorcising the Poltergeist

Shadows of Giants: Constraints on Stupendously Large Black Holes from Negative Sources against the Cosmic Microwave Background

Receipt and verification

First computed	2026-07-05T11:52:10.091152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dfbb8a7e5ee177ce25a9ccef5da5e603824fa0b3df8e011baf1a0311e9314cb

Aliases

arxiv: 2508.08238 · arxiv_version: 2508.08238v1 · doi: 10.48550/arxiv.2508.08238 · pith_short_12: PX53RJ7F5YLX · pith_short_16: PX53RJ7F5YLXZYS2 · pith_short_8: PX53RJ7F

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/PX53RJ7F5YLXZYS2TTHPLWS6MA \
  | 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: 7dfbb8a7e5ee177ce25a9ccef5da5e603824fa0b3df8e011baf1a0311e9314cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12c436cbce3895c626915e876c94e695d3c163e99d8255999ba8cb10655c48c2",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-08-11T17:53:30Z",
    "title_canon_sha256": "319ddf6c078a89bf4e9b27602a132ea2959b7e76355913717025368f21651772"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.08238",
    "kind": "arxiv",
    "version": 1
  }
}