Pith Number

pith:EHIXK6TF

pith:2026:EHIXK6TFUEXV6GUI2MSF75J54Y

not attested not anchored not stored refs pending

UNIONS-3500 Weak Lensing: II. B-mode validation for cosmic shear

A. Guinot, A. Wittje, A. W. McConnachie, C. Daley, C. Murray, F. Hervas-Peters, H. Hildebrandt, L. van Waerbeke, L. W. K. Goh, M. J. Hudson, M. Kilbinger, S. Guerrini

B-mode null tests pass in UNIONS-3500 after galaxy size cuts and stellar halo masking

arxiv:2604.03227 v2 · 2026-04-03 · astro-ph.CO · astro-ph.IM

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\usepackage{pith}
\pithnumber{EHIXK6TFUEXV6GUI2MSF75J54Y}

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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

After galaxy size cuts and stellar halo masking, all three B-mode statistics pass the null test with minimum PTE = 0.18; the oscillatory COSEBI pattern is suppressed by excluding the CCD angular scale.

C2weakest assumption

That the chosen scale and sample cuts do not remove cosmological information from the E-modes or introduce new selection biases that affect downstream cosmological inference.

C3one line summary

B-mode null tests for UNIONS-3500 cosmic shear pass after galaxy size cuts and stellar masking, with an oscillatory pattern from additive shear bias suppressed by excluding CCD angular scales.

Cited by

1 paper in Pith

UNIONS-3500 Weak Lensing: III. 2D Cosmological Constraints in Configuration Space

Receipt and verification

First computed	2026-06-04T01:09:49.545407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21d1757a65a12f5f1a88d3245ff53de633550057891a45d412704b4e6fb93144

Aliases

arxiv: 2604.03227 · arxiv_version: 2604.03227v2 · doi: 10.48550/arxiv.2604.03227 · pith_short_12: EHIXK6TFUEXV · pith_short_16: EHIXK6TFUEXV6GUI · pith_short_8: EHIXK6TF

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/EHIXK6TFUEXV6GUI2MSF75J54Y \
  | 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: 21d1757a65a12f5f1a88d3245ff53de633550057891a45d412704b4e6fb93144

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22021e3fc6b072f0e18efbf8a95f1b00faa5c15efd8fb3337fb79e3f57ece22b",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-04-03T17:56:10Z",
    "title_canon_sha256": "dc2168735d826c3fdf4378d2943914d55854835c9a079bd6dcdd8141411df232"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.03227",
    "kind": "arxiv",
    "version": 2
  }
}