Pith Number

pith:7MOLLJBD

pith:2025:7MOLLJBD3FJ2LFU22HLJHJXYMK

not attested not anchored not stored refs pending

Evidence of dynamical dark energy found via the DESI DR2 Lyman$\alpha$ forest

G. Mustafa, Himanshu Chaudhary, Salvatore Capozziello, S. K. J. Pacif

DESI DR2 Lyman-alpha forest measurements favor dynamical dark energy that crosses the phantom divide.

arxiv:2510.21976 v3 · 2025-10-24 · astro-ph.CO · gr-qc · hep-th

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\usepackage{pith}
\pithnumber{7MOLLJBD3FJ2LFU22HLJHJXYMK}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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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

All parameterizations favor a dynamical dark-energy scenario with w0 > -1, wa < 0, and w0 + wa < -1, consistent with a Quintom-B behavior. A moderate preference for dynamical dark-energy models is found relative to LambdaCDM, reaching up to ~3.10 sigma for Ly alpha + CMB + galaxy BAO.

C2weakest assumption

The chosen dark energy parameterizations (CPL, logarithmic, exponential, JBP, BA, generalized emergent) and the assumption that any deviation from w = -1 must take one of these functional forms; if the true behavior lies outside these families the reported preference could be an artifact of the model space.

C3one line summary

DESI DR2 Lyman-alpha forest data combined with other probes yields up to 3.1 sigma preference for dynamical dark energy parameterizations over LambdaCDM, with w0 > -1 and wa < 0.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-26T01:02:29.077042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb1cb5a423d953a5969ad1d693a6f8628486b29f5c20a19c2a1db9eba3a9df0d

Aliases

arxiv: 2510.21976 · arxiv_version: 2510.21976v3 · doi: 10.48550/arxiv.2510.21976 · pith_short_12: 7MOLLJBD3FJ2 · pith_short_16: 7MOLLJBD3FJ2LFU2 · pith_short_8: 7MOLLJBD

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7MOLLJBD3FJ2LFU22HLJHJXYMK \
  | 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: fb1cb5a423d953a5969ad1d693a6f8628486b29f5c20a19c2a1db9eba3a9df0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "877a67063db58badb6368821f37df19776aa2818868002e250eb939001d163ee",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-10-24T19:00:58Z",
    "title_canon_sha256": "eeeb3cacb58fa8af2db8dbc3b1fffd5eee7d24f2816678bd4692553e91999417"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2510.21976",
    "kind": "arxiv",
    "version": 3
  }
}