Pith Number

pith:NUQIQORS

pith:2026:NUQIQORSIEKYMGIPRDL3CRET22

not attested not anchored not stored refs pending

A Climate-Constrained Bayesian Inverse Method for JWST Rocky Exoplanet Eclipse Spectra: A Case Study of LTT 1445A b

Jacob Lustig-Yaeger, Jegug Ih, Kevin Stevenson, Natasha Batalha, Nicholas Wogan

A climate-constrained Bayesian method shows LTT 1445A b requires no atmosphere to fit existing JWST data, with 2σ upper limits of ≲1 bar for O₂/N₂/CO, ≲0.1 bar for CO₂, ≲10^{-3} bar for H₂O, and ≲10^{-4} bar for SO₂.

arxiv:2605.14997 v1 · 2026-05-14 · astro-ph.EP

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\pithnumber{NUQIQORSIEKYMGIPRDL3CRET22}

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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

An atmosphere does not need to be invoked to explain the data, meaning a bare rock model produces an adequate fit. If the planet has an atmosphere, the 2σ upper limits on surface partial pressures are ≲ 1 bar for an optically thin gas like O₂, N₂ or CO, ≲0.1 bar for CO₂, ≲ 10^{-3} bar for H₂O, and ≲ 10^{-4} bar for SO₂. Scheduled MIRI F1500W observations could detect one of the thicker atmospheres permitted by the existing data (1 bar O₂ and 0.01 bar CO₂), if a precision of 20 ppm or better is achieved.

C2weakest assumption

The assumption that self-consistent radiative-convective equilibrium pressure-temperature profiles accurately represent the planet without additional free parameters for temperature structure, and that the bare rock surface model correctly captures emission without unaccounted surface albedo or emissivity uncertainties.

C3one line summary

Receipt and verification

First computed	2026-05-17T23:38:54.949616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d20883a32411586190f88d7b14493d6b829a6ae3441ebc8cd5465c74ede1d15

Aliases

arxiv: 2605.14997 · arxiv_version: 2605.14997v1 · doi: 10.48550/arxiv.2605.14997 · pith_short_12: NUQIQORSIEKY · pith_short_16: NUQIQORSIEKYMGIP · pith_short_8: NUQIQORS

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/NUQIQORSIEKYMGIPRDL3CRET22 \
  | 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: 6d20883a32411586190f88d7b14493d6b829a6ae3441ebc8cd5465c74ede1d15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f64f9e4937e749b4101fad9d2683076a473dbce363c678d6055c4bcc8bd0a1b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-05-14T16:00:04Z",
    "title_canon_sha256": "4d96c504286bf1f9c39a9245dfb178ed98004e2e0d21b769e759f06a969e5be2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14997",
    "kind": "arxiv",
    "version": 1
  }
}