Pith Number

pith:YOCOQ2GG

pith:2026:YOCOQ2GGRTCQKM5VNMAPYW3F6V

not attested not anchored not stored refs resolved

Statistical Study of Balmer Continuum Enhancement in Solar Flares

Jonas Zbinden, Lucia Kleint, Pranjali Sharma

Solar flares display near-ultraviolet continuum enhancements in 80 of 234 observed events, concentrated at ribbon edges.

arxiv:2604.11276 v1 · 2026-04-13 · astro-ph.SR

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YOCOQ2GGRTCQKM5VNMAPYW3F6V}

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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 detected NUV continuum enhancements in 80 out of 234 flares. The enhancements occurred predominantly on the flare ribbon edges and during the GOES impulsive phase but also after the GOES peak flux. Enhancement magnitude increase with flare class, with X-class flares showing the strongest enhancement.

C2weakest assumption

The temporal and spatial correspondence between NUV and FUV continuum enhancement reliably eliminates false positives in the detection pipelines.

C3one line summary

NUV continuum enhancements occur in 80 of 234 solar flares, concentrated on ribbon edges during the impulsive phase, with magnitude rising with flare class.

References

30 extracted · 30 resolved · 0 Pith anchors

[1] Allred, J. C., Hawley, S. L., Abbett, W. P., & Carlsson, M. 2005, ApJ, 630, 573 2005

[2] 2024, ApJ, 975, 69 2024

[3] Carlsson, M., Fletcher, L., Allred, J., et al. 2023, A&A, 673, A150 Castellanos Durán, J. S. & Kleint, L. 2020, ApJ, 904, 96 De Pontieu, B., Title, A. M., Lemen, J. R., et al. 2014, Sol. Phys., 289, 2 2023

[4] Doyle, J. G. & Phillips, K. J. H. 1992, A&A, 257, 773 1992

[5] Heinzel, P. & Kleint, L. 2014, ApJ, 794, L23 2014

Receipt and verification

First computed	2026-06-03T14:05:24.456605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c384e868c68cc50533b56b00fc5b65f55c2c25897facf463a5c84e5aa2163b91

Aliases

arxiv: 2604.11276 · arxiv_version: 2604.11276v1 · doi: 10.48550/arxiv.2604.11276 · pith_short_12: YOCOQ2GGRTCQ · pith_short_16: YOCOQ2GGRTCQKM5V · pith_short_8: YOCOQ2GG

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/YOCOQ2GGRTCQKM5VNMAPYW3F6V \
  | 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: c384e868c68cc50533b56b00fc5b65f55c2c25897facf463a5c84e5aa2163b91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fe605933ef96779147860a3730951be2d3ae5bf9c0a621a1e0944079cef755d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-04-13T10:32:22Z",
    "title_canon_sha256": "5a127f2b85d321abae480619d613f86ffc9cd95200323cb86c49327eb9ab5f9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.11276",
    "kind": "arxiv",
    "version": 1
  }
}