Pith Number

pith:OT5CURX3

pith:2026:OT5CURX3GK3DO4T63WLON5XSMW

not attested not anchored not stored refs pending

SAETASS: Solver for Astroparticle Equation of Transport Analysis in Spherical Symmetry

Jos\'e Mar\'ia Garc\'ia-Morillo, Rub\'en L\'opez-Coto, Stefano Menchiari

SAETASS solves the time-dependent transport equation for astroparticles in spherical symmetry with a conservative finite-volume method.

arxiv:2604.18703 v2 · 2026-04-20 · astro-ph.HE · astro-ph.IM

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\usepackage{pith}
\pithnumber{OT5CURX3GK3DO4T63WLON5XSMW}

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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

Our results successfully recover established steady-state limits while revealing relevant pre-equilibrium temporal dynamics across Kolmogorov, Kraichnan and Bohm diffusion regimes.

C2weakest assumption

The modular operator-splitting architecture accurately manages the interplay between advection, diffusion, and losses without introducing significant numerical artifacts in combined solutions.

C3one line summary

SAETASS is a new open-source code that solves the astroparticle transport equation in spherical symmetry using finite-volume methods and modular operator splitting, validated on test cases and applied to cosmic-ray protons.

Cited by

2 papers in Pith

SAETASS: Solver for Astroparticle Equation of Transport Analysis in Spherical Symmetry

Modelling Galactic neutrino emission: contributions from massive star clusters and interstellar cosmic rays

Receipt and verification

First computed	2026-06-23T01:13:05.188962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74fa2a46fb32b637727edd96e6f6f265ab465638b40145b04fc132b84a25b370

Aliases

arxiv: 2604.18703 · arxiv_version: 2604.18703v2 · doi: 10.48550/arxiv.2604.18703 · pith_short_12: OT5CURX3GK3D · pith_short_16: OT5CURX3GK3DO4T6 · pith_short_8: OT5CURX3

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/OT5CURX3GK3DO4T63WLON5XSMW \
  | 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: 74fa2a46fb32b637727edd96e6f6f265ab465638b40145b04fc132b84a25b370

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7f87aba69f53d3dfb3dcbba703639c0c97721ff7a9c047cae849737e6480f72",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-04-20T18:03:07Z",
    "title_canon_sha256": "86540d5211e5758ff52fd2484dcd227b06839fa412c63e6476604723d06e6829"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.18703",
    "kind": "arxiv",
    "version": 2
  }
}