Pith Number

pith:TOYLJWTQ

pith:2026:TOYLJWTQ72NXFMOXDTQDVL6GWY

not attested not anchored not stored refs resolved

Cylindrical cosmological simulations with StePS

Bal\'azs P\'al, G\'abor R\'acz, Istv\'an Csabai, Istv\'an Szapudi, Till Sawala, Viola H. Varga

Cylindrical cosmological simulations adopt S¹×ℝ² topology to eliminate cubic periodic boundary artefacts for symmetric targets.

arxiv:2602.20787 v2 · 2026-02-24 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TOYLJWTQ72NXFMOXDTQDVL6GWY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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 cylindrical domain's topology enables fully self-consistent simulations to be run in the S¹×ℝ² manifold, while mitigating any periodic-image artefacts with respect to targets whose symmetries are mismatched to a cubic box.

C2weakest assumption

That a smoothly varying spatial and mass resolution with radius suppresses edge artefacts at the free outer boundary without introducing new systematic biases into cosmological statistics.

C3one line summary

A new cylindrical cosmological simulation method with radially varying resolution enables self-consistent N-body evolution in S¹×ℝ² topology for systems mismatched to cubic periodicity.

References

43 extracted · 43 resolved · 0 Pith anchors

[1] Aarseth, S. J., Gott, III, J. R., & Turner, E. L. 1979, ApJ, 228, 664 1979

[2] Barnes, J. & Hut, P . 1986, Nature, 324, 446 Benítez-Llambay, A. 2017, Py-SPHViewer: Cosmological simulations using Smoothed Particle Hydrodynamics, Astrophysics Source Code Library, record ascl:1712. 1986

[3] Broadhurst, T. J., Ellis, R. S., Koo, D. C., & Szalay, A. S. 1990, Nature, 343, 726 1990

[4] Bryan, G. L. & Norman, M. L. 1998, ApJ, 495, 80 1998

[5] 1994, MNRAS, 267, 811 1994

Formal links

2 machine-checked theorem links

Cited by

1 paper in Pith

STEPSIC: Initial condition generator for stereographic cosmological simulations

Receipt and verification

First computed	2026-06-03T14:05:46.503371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bb0b4da70fe9b72b1d71ce03aafc6b61413ebaac06217f46579ca8580d98f86

Aliases

arxiv: 2602.20787 · arxiv_version: 2602.20787v2 · doi: 10.48550/arxiv.2602.20787 · pith_short_12: TOYLJWTQ72NX · pith_short_16: TOYLJWTQ72NXFMOX · pith_short_8: TOYLJWTQ

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/TOYLJWTQ72NXFMOXDTQDVL6GWY \
  | 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: 9bb0b4da70fe9b72b1d71ce03aafc6b61413ebaac06217f46579ca8580d98f86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8abcfde4554c43f8b9490113aeaf4c18e1351a9f776fe9b36fa9f83f27895e5b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-02-24T11:27:42Z",
    "title_canon_sha256": "0138affb8ec63106e3df0cf5f5e4499004d0f7a92f17d03c02a574032b476705"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.20787",
    "kind": "arxiv",
    "version": 2
  }
}