Pith Number

pith:2N44OW5H

pith:2026:2N44OW5H3QMCBJFEFZLZFGDPD7

not attested not anchored not stored refs pending

A study on Dusty Plasma Physics and the examination of Jeans Criteria for the Milky Way

Isha Shailesh, Ram Prasad Prajapati, Tanay Gupta

In an expanding universe the critical Jeans wavenumber depends on the scale factor, allowing short-wavelength perturbations during inflation to trigger gravitational collapse and galaxy formation.

arxiv:2605.09943 v2 · 2026-05-11 · gr-qc · astro-ph.GA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2N44OW5H3QMCBJFEFZLZFGDPD7}

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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.

Claims

C1strongest claim

It is found that short-wavelength perturbations are expected during the inflationary period of big bang cosmology, which are responsible for gravitational collapse and the formation of galaxies.

C2weakest assumption

The assumption that plane-wave solutions remain valid in the perturbed fluid equations of an expanding universe and that the Einstein-de Sitter model with kappa=0 adequately captures the relevant dynamics for Jeans instability.

C3one line summary

In an expanding universe the critical Jeans wavenumber for gravitational collapse depends on the time-varying scale factor S(t), permitting short-wavelength modes during inflation to form galaxies.

Receipt and verification

First computed	2026-05-20T00:02:12.975220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d379c75ba7dc1820a4a42e5792986f1ff862d14d1829b6927d78bcd0afa60e88

Aliases

arxiv: 2605.09943 · arxiv_version: 2605.09943v2 · doi: 10.48550/arxiv.2605.09943 · pith_short_12: 2N44OW5H3QMC · pith_short_16: 2N44OW5H3QMCBJFE · pith_short_8: 2N44OW5H

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/2N44OW5H3QMCBJFEFZLZFGDPD7 \
  | 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: d379c75ba7dc1820a4a42e5792986f1ff862d14d1829b6927d78bcd0afa60e88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0988b3bfe9542ac678f334471c95b6bca277d368d09388483fcf3481fcf95707",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-05-11T03:41:33Z",
    "title_canon_sha256": "dc69ce1a4d674c645b9fea1e1633a95c50dc1360c56b41697f362b675442aefb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.09943",
    "kind": "arxiv",
    "version": 2
  }
}