Pith Number

pith:WRALXMT5

pith:2026:WRALXMT5HKBHNT6RLWW6GOEMCA

not attested not anchored not stored refs pending

Discriminating Planck Reionisation Histories with the kSZ Effect

A. Gorce, E. Pointecouteau, L. McBride, L. Salvati, M. Douspis, M. Mu\~noz-Echeverr\'ia, M. Tristram, S. Ili\'c

The kSZ effect distinguishes short-duration from long-duration reionisation histories allowed by Planck data.

arxiv:2605.12104 v2 · 2026-05-12 · astro-ph.CO

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\usepackage{pith}
\pithnumber{WRALXMT5HKBHNT6RLWW6GOEMCA}

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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

The allowed histories fall into two broad classes, `short' and `long' duration reionisation, yielding distinct kSZ signatures. ... a measurement of the kSZ power spectrum at ℓ ∼ 2000 with ∼0.4 μK² sensitivity would discriminate between `short' and `long' reionisation scenarios.

C2weakest assumption

That the analytical framework for separating late-time and patchy kSZ contributions, together with the uncertainties taken from LORELI II simulations, correctly captures the dispersion without introducing biases that would erase the separation between short and long classes.

C3one line summary

Short and long reionisation histories consistent with Planck yield kSZ power spectra that remain separable despite uncertainties, requiring a sensitivity of ~0.4 μK² at ℓ~2000 to discriminate between the scenarios.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-24T01:15:03.790131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b440bbb27d3a8276cfd15dade3388c1030452cb550ee6f559497230995dfcfd7

Aliases

arxiv: 2605.12104 · arxiv_version: 2605.12104v2 · doi: 10.48550/arxiv.2605.12104 · pith_short_12: WRALXMT5HKBH · pith_short_16: WRALXMT5HKBHNT6R · pith_short_8: WRALXMT5

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/WRALXMT5HKBHNT6RLWW6GOEMCA \
  | 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: b440bbb27d3a8276cfd15dade3388c1030452cb550ee6f559497230995dfcfd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6ab222dd5b03b5f9412acc0eb41a67d928b641ba796eddf50da1a3717545f31",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-05-12T13:20:11Z",
    "title_canon_sha256": "445aa4587f5ca3aae40f80b678ec3fb11db13fbbff2539016f8ac54ecd43f839"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12104",
    "kind": "arxiv",
    "version": 2
  }
}