Pith Number

pith:WOSZOWRB

pith:2026:WOSZOWRB4523RG3A6P4PM6QUBQ

not attested not anchored not stored refs resolved

VST-SMASH: VST Survey of Mass Assembly and Structural Hierarchy I. Survey presentation and deep photometry of IC 5332: tracing the mass assembly in the challenging faintest-end regime

Abdurro uf, A. Mercurio, A. Unni, C. Tortora, E. Schinnerer, F. Annibali, L. Hunt, M. Baes, M. Gatto, M. Spavone, N. Bellucco, R. Ragusa

Deep imaging of IC 5332 shows redder color gradients in the outskirts indicating accreted stellar populations.

arxiv:2604.07083 v2 · 2026-04-08 · astro-ph.GA

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\usepackage{pith}
\pithnumber{WOSZOWRB4523RG3A6P4PM6QUBQ}

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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 color profiles at larger radii reveal a significant gradient toward redder colors, consistent with the presence of accreted populations in the outskirts. We also find bluer r - i, which could be explained by strong Ha emission. These findings support a scenario of ongoing stellar mass assembly through accretion

C2weakest assumption

That the observed redder colors at large radii are caused by accreted stellar populations rather than alternative explanations such as radial age or metallicity gradients, dust effects, or calibration uncertainties in the low-surface-brightness regime.

C3one line summary

Deep g,r,i photometry of IC 5332 shows redder color gradients in the outskirts and faint stellar streams, supporting ongoing stellar mass assembly via accretion.

References

96 extracted · 96 resolved · 0 Pith anchors

[1] & Ichikawa , T 2015

[2] 2020, , 491, 5101 2020

[3] 1998, The Messenger, 93, 30 1998

[4] 2024, , 683, A182 2024

[5] 2008, , 683, L103 2008

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-03T14:05:24.341077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3a5975a21e775b89b60f3f8f67a140c2cc507ef69e1a642555a376de2ba86d7

Aliases

arxiv: 2604.07083 · arxiv_version: 2604.07083v2 · doi: 10.48550/arxiv.2604.07083 · pith_short_12: WOSZOWRB4523 · pith_short_16: WOSZOWRB4523RG3A · pith_short_8: WOSZOWRB

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/WOSZOWRB4523RG3A6P4PM6QUBQ \
  | 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: b3a5975a21e775b89b60f3f8f67a140c2cc507ef69e1a642555a376de2ba86d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "356417c4f75d46b9c416dd2e93cdb82eed681c0ed71c94a53a0a2c50831dd288",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-04-08T13:37:29Z",
    "title_canon_sha256": "a761b9bdd618c773ea833f23f73588673d68fd139fe327ff36d87be888da159d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.07083",
    "kind": "arxiv",
    "version": 2
  }
}