Pith Number

pith:CFJR6EDC

pith:2026:CFJR6EDC5SMC4ZVBOCZR6CBFBW

not attested not anchored not stored refs resolved

Magnetic geometry of M dwarfs in the southern PLATO field

A. Carmona, A. F. Lanza, A. Vidotto, C. P. Folsom, G. A. J. Hussain, J. Morin, M. Diez, P. I. Cristofari, P. Petit, S. Bellotti, S. Messina, X. M. Delfosse

Six M dwarfs show diverse large-scale magnetic topologies tied to rotation and mass

arxiv:2604.06821 v2 · 2026-04-08 · astro-ph.SR

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CFJR6EDC5SMC4ZVBOCZR6CBFBW}

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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

We report a wide diversity of magnetic topologies among the 6 M dwarfs, with 3 main results: (1) Rapidly-rotating (Prot < 2 d) early M dwarfs can generate dipole-dominated fields of moderate intensity, similar to less massive mid-M dwarfs; (2) rapidly-rotating mid-M dwarfs can generate non-axisymmetric large-scale fields with a significant toroidal component; (3) a moderately-rotating (Prot ~ 17 d) early M dwarf shows a surprisingly weak large-scale field.

C2weakest assumption

Zeeman Doppler Imaging reconstructions from the available phase coverage and LSD profiles accurately recover the true large-scale topologies without major bias from incomplete sampling, small-scale field leakage, or assumptions about field geometry.

C3one line summary

Six M dwarfs exhibit diverse large-scale magnetic topologies, with fast rotators showing dipole or non-axisymmetric toroidal fields and a moderate rotator showing weak fields.

References

4 extracted · 4 resolved · 0 Pith anchors

[1] , " * write output.state after.block = add.period write newline

[2] write newline

[3] " * write output.state after.block = add.period write newline

[4] write newline

Receipt and verification

First computed	2026-05-27T14:06:43.277816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11531f1062ec982e66a170b31f08250da634f69479b33ae81d67d5967c17f1a7

Aliases

arxiv: 2604.06821 · arxiv_version: 2604.06821v2 · doi: 10.48550/arxiv.2604.06821 · pith_short_12: CFJR6EDC5SMC · pith_short_16: CFJR6EDC5SMC4ZVB · pith_short_8: CFJR6EDC

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/CFJR6EDC5SMC4ZVBOCZR6CBFBW \
  | 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: 11531f1062ec982e66a170b31f08250da634f69479b33ae81d67d5967c17f1a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a8d4e84e4b3912c14b8ed9ac6926bdf1bdeee86932ac90b52dc151115be61e5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-04-08T08:39:25Z",
    "title_canon_sha256": "df48a4b27081de0b66de2a749eab568bec33f46acf3e28fe500cc0402cfa9166"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.06821",
    "kind": "arxiv",
    "version": 2
  }
}