Pith Number

pith:IYRTOCB3

pith:2026:IYRTOCB3ZQ7IEU2TRQQHGCJC5K

not attested not anchored not stored refs resolved

Revisiting the Matter Creation Process: Observational Constraints on Gravitationally Induced Dark Energy and the Hubble Tension

Eleonora Di Valentino, Giovanni Montani, Luis A. Escamilla, Mariaveronica De Angelis, Tiziano Schiavone

Gravitationally induced particle creation fits data like ΛCDM while cutting the Hubble tension to 2.4-3 sigma.

arxiv:2601.14222 v2 · 2026-01-20 · astro-ph.CO

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\usepackage{pith}
\pithnumber{IYRTOCB3ZQ7IEU2TRQQHGCJC5K}

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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

All PC scenarios provide fits comparable to ΛCDM, with one showing effective dynamical dark-energy behaviour. When early- and late-time datasets are analysed separately, the PC models reduce the Hubble tension to ≃2.4σ--3σ, compared to 4.3σ in ΛCDM.

C2weakest assumption

The assumption that particle-creation deviations from ΛCDM are confined to late times (0<z<3) and that the four chosen phenomenological parametrizations of the creation rate accurately capture the underlying gravitational process.

C3one line summary

Gravitationally induced particle creation models fit cosmological data as well as ΛCDM and reduce the Hubble tension from 4.3σ to 2.4–3σ.

References

153 extracted · 153 resolved · 42 Pith anchors

[1] Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results 2013 · arXiv:1212.5225

[2] Planck 2018 results. VI. Cosmological parameters 2020 · arXiv:1807.06209

[3] Planck 2018 results. I. Overview and the cosmological legacy of Planck 2020 · arXiv:1807.06205

[4] Aiolaet al.(ACT), JCAP12, 047, arXiv:2007.07288 [astro-ph.CO] 2007

[5] The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $\Lambda$CDM Parameters · arXiv:2503.14452

Formal links

2 machine-checked theorem links

Cited by

3 papers in Pith

Cosmological Stealth fields and Non-Equilibrium thermodynamics

Evidence for deviation in gravitational light deflection from general relativity at cosmological scales with KiDS-Legacy and CMB lensing

Measuring neutrino mass in light of ACT DR6 and DESI DR2

Receipt and verification

First computed	2026-06-30T01:17:32.828299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

462337083bcc3e8253538c20730922ea88a3a8059302e742151fe33aa146c5b2

Aliases

arxiv: 2601.14222 · arxiv_version: 2601.14222v2 · doi: 10.48550/arxiv.2601.14222 · pith_short_12: IYRTOCB3ZQ7I · pith_short_16: IYRTOCB3ZQ7IEU2T · pith_short_8: IYRTOCB3

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/IYRTOCB3ZQ7IEU2TRQQHGCJC5K \
  | 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: 462337083bcc3e8253538c20730922ea88a3a8059302e742151fe33aa146c5b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97fae12813a30537da0d8feec214d2e4e0d8961ae54061fb7262717564bc1572",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-01-20T18:32:34Z",
    "title_canon_sha256": "67313e33cd9ec42848e90957fa7e58c8ff81ccacc678167c9cbacdbd1b83c992"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.14222",
    "kind": "arxiv",
    "version": 2
  }
}