Pith Number

pith:FRO4R7TK

pith:2026:FRO4R7TKEM66UBN3732W76O2IL

not attested not anchored not stored refs resolved

Constraints on non-canonical chaotic inflation from ACT DR6 and BICEP/Keck data

Chen-Hao Wu, Wei Yang, Ya-Peng Hu

Non-canonical chaotic inflation models remain viable for potential indices 1/3, 2/3 and 1 when the parameter α is constrained by recent data.

arxiv:2605.16772 v1 · 2026-05-16 · gr-qc · astro-ph.CO

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\usepackage{pith}
\pithnumber{FRO4R7TKEM66UBN3732W76O2IL}

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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

For these potentials n=1/3, 2/3, and 1, our results respectively tightly limit α to the levels of 8.8^{+1.6}_{-2.8}, 11.7^{+1.7}_{-2.6}, and 16.4^{+3.7}_{-7.0}, within the corresponding 1σ confidence intervals. Meanwhile, the required number of e-foldings naturally converges to N ≃ 54, without the need for fine-tuning.

C2weakest assumption

The slow-roll approximation remains valid and the equilateral non-Gaussianity bound f_NL^equil correctly restricts the potential index n before the MCMC stage.

C3one line summary

MCMC fitting of joint P-ACT-LB-BK18 dataset constrains non-canonical parameter alpha to 8.8, 11.7, and 16.4 (1 sigma) for chaotic inflation potentials with n=1/3, 2/3, 1 respectively.

References

52 extracted · 52 resolved · 13 Pith anchors

[1] A. D. Linde, A New Inflationary Universe Scenario: A Possible Solution of the Horizon, Flatness, Homogeneity, Isotropy and Primordial Monopole Problems, Phys. Lett. B 108 (1982) 389–393. doi:10.1016/0 1982 · doi:10.1016/0370-2693(82

[2] The inflationary universe: A possible solu- tion to the horizon and flatness problems 1981 · doi:10.1103/physrevd.23.347

[3] Akramiet al.(Planck), Planck 2018 results 2018 · doi:10.1051/0004-6361/

[4] Ade, et al., Phys 2018 · doi:10.1103/physrevlett.127.151301

[5] DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations 2024 · doi:10.1088/1475-7516/2025/02/021

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:03:21.178138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c5dc8fe6a233dea05bbfef56ff9da42ef7733581ebe583f235d074d9c1fbbd1

Aliases

arxiv: 2605.16772 · arxiv_version: 2605.16772v1 · doi: 10.48550/arxiv.2605.16772 · pith_short_12: FRO4R7TKEM66 · pith_short_16: FRO4R7TKEM66UBN3 · pith_short_8: FRO4R7TK

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FRO4R7TKEM66UBN3732W76O2IL \
  | 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: 2c5dc8fe6a233dea05bbfef56ff9da42ef7733581ebe583f235d074d9c1fbbd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6925d3d4e4a3d7ac49ecb81ae79c301f5ace3edf2a7597ff2801f2fc05b1cba",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-05-16T02:49:42Z",
    "title_canon_sha256": "0d5ee5e0d7fa1c60f15b65b04b1080fe9673fd8b0824b54f118a254ea9e4835b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16772",
    "kind": "arxiv",
    "version": 1
  }
}