Pith Number

pith:BE4X5K4Z

pith:2026:BE4X5K4ZXHLJZHZSNP3HTNFFXC

not attested not anchored not stored refs resolved

SN 2023fyq: direct detection of a Type Ibn supernova progenitor and its multi-wavelength environmental constraints

Jifeng Liu, Junjie Wu, Justyn Maund, Ke Wang, Ning-Chen Sun, Qiang Xi, Xinyi Hong, Yali Shao, Yi-Han Zhao

The first direct detection of a progenitor for a Type Ibn supernova shows it is a hot luminous star consistent with a binary system.

arxiv:2605.16526 v1 · 2026-05-15 · astro-ph.SR · astro-ph.HE

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\usepackage{pith}
\pithnumber{BE4X5K4ZXHLJZHZSNP3HTNFFXC}

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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 discover a pre-explosion source at the SN position, which is consistent with a hot (T>15000 K) and luminous (log(L/L⊙) ≳ 5.5) SN progenitor and a possible host star cluster. The progenitor is confirmed to have disappeared after explosion. Analysis of the SN environment implies that the progenitor likely has an age of log(t/yr) = 7.1--7.2.

C2weakest assumption

The pre-explosion source is physically associated with the supernova (not a chance alignment or unrelated cluster member) and its disappearance is due to the explosion rather than variability or observational limits.

C3one line summary

First direct detection of a Type Ibn supernova progenitor supports a low-mass helium star in a binary system with environmental age log(t/yr) = 7.1-7.2.

References

43 extracted · 43 resolved · 1 Pith anchors

[1] 2020, MNRAS, 496, 2, 2020

[2] doi:10.1093/mnras/staa1596 Asplund, M., Grevesse, N., Sauval, A. J., et al. 2009, ARA&A, 47, 1, 2009 · doi:10.1093/mnras/staa1596

[3] J., N., Jacobson-Galán, W., et al 2025 · doi:10.1146/annurev.astro.46.060407.145222

[4] J., Sollerman, J., Irani, I., et al 2024 · doi:10.1086/130766

[5] 2012, MNRAS, 426, 1324, doi: 10.1111/j.1365-2966.2012.21757.x 2012 · doi:10.1111/j.1365-2966.2012.21948.x

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:02:27.431262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09397eab99b9d69c9f326bf679b4a5b884fee5aececdff8ad9185b1237752730

Aliases

arxiv: 2605.16526 · arxiv_version: 2605.16526v1 · doi: 10.48550/arxiv.2605.16526 · pith_short_12: BE4X5K4ZXHLJ · pith_short_16: BE4X5K4ZXHLJZHZS · pith_short_8: BE4X5K4Z

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/BE4X5K4ZXHLJZHZSNP3HTNFFXC \
  | 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: 09397eab99b9d69c9f326bf679b4a5b884fee5aececdff8ad9185b1237752730

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe1b320c8ea704fa440d89f2bcbd4d2d4fa8324775addcc2a045a709e85a0a4b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-05-15T18:22:44Z",
    "title_canon_sha256": "9a60ce6d6c47dd455f516e5add60a1ae660e4da576b1120a352ea64a6dd338b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16526",
    "kind": "arxiv",
    "version": 1
  }
}