Pith Number

pith:ZXIPRY6F

pith:2026:ZXIPRY6FZISZWW2P6K4HL5NND2

not attested not anchored not stored refs pending

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

Nicholas Leister, Pedro Schwaller, Yann Gouttenoire

arxiv:2605.21477 v1 · 2026-05-20 · hep-ph · astro-ph.CO · 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{ZXIPRY6FZISZWW2P6K4HL5NND2}

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	2026-05-21T02:05:39.067019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdd0f8e3c5ca259b5b4ff2b875f5ad1e8c72ae9a428af30a4b95f82a8d3cf22e

Aliases

arxiv: 2605.21477 · arxiv_version: 2605.21477v1 · doi: 10.48550/arxiv.2605.21477 · pith_short_12: ZXIPRY6FZISZ · pith_short_16: ZXIPRY6FZISZWW2P · pith_short_8: ZXIPRY6F

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/ZXIPRY6FZISZWW2P6K4HL5NND2 \
  | 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: cdd0f8e3c5ca259b5b4ff2b875f5ad1e8c72ae9a428af30a4b95f82a8d3cf22e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3563d937def91d2977cd523df3e7e26dcb8add62399e06dff1f648fbe58fff60",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2026-05-20T17:57:36Z",
    "title_canon_sha256": "5763760acac25cb5f0a30e404b7d12ad186433eb6769ae6c881c17066b30a817"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21477",
    "kind": "arxiv",
    "version": 1
  }
}