Pith Number

pith:7XFA4PVV

pith:2026:7XFA4PVVFNC4YBB6LZQ6RBMQCE

not attested not anchored not stored refs pending

Too many protoclusters? Reconciling the overabundance of cluster progenitors within the first billion years of the Universe

Callum Witten, Chamilla Terp, Emma Giovinazzo, Jake S. Bennett, Jakob M. Helton, Kasper E. Heintz, Pascal A. Oesch, Romain A. Meyer, Seunghwan Lim, Thomas Herard-Demanche, William McClymont

arxiv:2605.28930 v1 · 2026-05-27 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7XFA4PVVFNC4YBB6LZQ6RBMQCE}

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

On the later evolution of observationally selected protocluster candidates at $z\,{\gtrsim}\,5$

Receipt and verification

First computed	2026-05-29T00:04:16.964914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdca0e3eb52b45cc043e5e61e88590112d0d8fb105387a359debeb7e7d9c33b9

Aliases

arxiv: 2605.28930 · arxiv_version: 2605.28930v1 · doi: 10.48550/arxiv.2605.28930 · pith_short_12: 7XFA4PVVFNC4 · pith_short_16: 7XFA4PVVFNC4YBB6 · pith_short_8: 7XFA4PVV

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/7XFA4PVVFNC4YBB6LZQ6RBMQCE \
  | 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: fdca0e3eb52b45cc043e5e61e88590112d0d8fb105387a359debeb7e7d9c33b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f79f1c5d09ca2de2368fe2ad9a0073a4147733fa9e593576a71e96e9165f07ee",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-27T18:00:00Z",
    "title_canon_sha256": "5a32eb0ca5da151f36c7aa6cbcf4cf7b518794f8eb081aedae02592ce5f8131f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.28930",
    "kind": "arxiv",
    "version": 1
  }
}