Pith Number

pith:25OQX3IZ

pith:2026:25OQX3IZ2ASDVDRDSTJLIFZOCV

not attested not anchored not stored refs resolved

On the origin of the BAOtr-DESI tension

Ioannis Pantos, Leandros Perivolaropoulos

BAOtr and DESI BAO datasets cannot be fit simultaneously by any CMB-consistent CPL dark energy model.

arxiv:2604.11106 v2 · 2026-04-13 · astro-ph.CO

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\pithnumber{25OQX3IZ2ASDVDRDSTJLIFZOCV}

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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

No CMB-consistent CPL model fits both datasets simultaneously. The direct comparison at z = 0.510 sets an irreducible tension floor that no smooth modification of D_M(z) can remove.

C2weakest assumption

That the CPL parametrization is sufficiently flexible to describe any smooth dark energy evolution consistent with the data, and that residual fiducial dependence in the published DESI distances is truly negligible at the 0.3% level.

C3one line summary

No CMB-consistent CPL dark energy model can simultaneously fit both the BAOtr and DESI datasets; the 3.7-sigma disagreement at z=0.51 sets an irreducible floor.

References

85 extracted · 85 resolved · 5 Pith anchors

[1] D. J. Eisenstein, W. Hu, M. Tegmark, Cosmic complementarity:H 0 andΩ m from combining CMB experiments and redshift surveys, Astro- phys. J. 504 (1998) L57–L60.arXiv:astro-ph/9805239,doi:10.1086/ 31158 1998

[2] Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies 2005 · arXiv:astro-ph/0501171

[3] 1999, MNRAS, 302, 81, doi: 10.1046/j.1365-8711.1999.02083.x 1999 · doi:10.1046/j.1365-8711.1999.02369.x

[4] Probing dark energy using baryonic oscillations in the galaxy power spectrum as a cosmological ruler 2003 · doi:10.1086/376983

[5] Probing dark energy with baryonic acoustic oscillations from future large galaxy redshift surveys 2003 · doi:10.1086/379122

Cited by

3 papers in Pith

Geometric Constraints on the Pre-Recombination Expansion History from the Hubble Tension

Double the axions, half the tension: multi-field early dark energy eases the Hubble tension

Do equation of state parametrizations of dark energy faithfully capture the dynamics of the late universe?

Receipt and verification

First computed	2026-05-25T02:01:19.378618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d75d0bed19d0243a8e2394d2b4172e154f7eeca24ac5965444b11ae80111537e

Aliases

arxiv: 2604.11106 · arxiv_version: 2604.11106v2 · doi: 10.48550/arxiv.2604.11106 · pith_short_12: 25OQX3IZ2ASD · pith_short_16: 25OQX3IZ2ASDVDRD · pith_short_8: 25OQX3IZ

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/25OQX3IZ2ASDVDRDSTJLIFZOCV \
  | 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: d75d0bed19d0243a8e2394d2b4172e154f7eeca24ac5965444b11ae80111537e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a627af07d30ccae6d95031d66f1a50288fa3333dd8e3fc4301186d080a12d983",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-04-13T07:23:08Z",
    "title_canon_sha256": "c8140b9968a5f5a47b86c2fc3dfd968c1018ddaae0b21fd13909d140bd8f4783"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.11106",
    "kind": "arxiv",
    "version": 2
  }
}