Pith Number

pith:TKCHOWE6

pith:2026:TKCHOWE6HFJWLNY6PTYAOVZPDU

not attested not anchored not stored refs pending

The Fe I 4377 {\AA} Line as a Solar Faculae Indicator: Insights from Spectral Ratio Analysis

(10) University of Geneva, (11) University of Oxford), (2) Imperial College London, (3) University of Graz, (4) Leibniz-Institut f\"ur Astrophysik Potsdam, (5) Independent Researcher, 6), (6) Max-Planck-Institut f\"ur Sonnensystemforschung, (7) University of Birmingham, (8) Flatiron Institute, (9) University of St Andrews, Alexander G. M. Pietrow (4), Alexander I. Shapiro (3, Andrew Collier Cameron (9), Baptiste Klein (11), Benjamin M. J. Cadell (1), Christopher A. Watson (1), Dana Clarice Yaptangco (2), Ernst J. W. de Mooij (1), Federica Rescigno (7), Jean C. Costes (1), Katlyn L. Hobbs (1), Krishnamurthy Sowmya (3), Megan Bedell (8), Mitchell E. Young (1), Niamh K. O'Sullivan (11), Niamh Mallaghan (1), P\'al V\'aradi Nagy (5), Ryan A. Rubenzahl (8), Sara Tavella (10) ((1) Queen's University Belfast, Sean M. O'Brien (1), Toby Rodel (1), Veronika Witzke (3), Xavier Dumusque (10), Yvonne Unruh (2)

arxiv:2607.29455 v1 · 2026-07-31 · astro-ph.SR · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TKCHOWE6HFJWLNY6PTYAOVZPDU}

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.

Receipt and verification

First computed	2026-08-03T01:34:53.713880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a8477589e395365b71e7cf007572f1d3d232be8191339434da305edcf617473

Aliases

arxiv: 2607.29455 · arxiv_version: 2607.29455v1 · doi: 10.48550/arxiv.2607.29455 · pith_short_12: TKCHOWE6HFJW · pith_short_16: TKCHOWE6HFJWLNY6 · pith_short_8: TKCHOWE6

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/TKCHOWE6HFJWLNY6PTYAOVZPDU \
  | 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: 9a8477589e395365b71e7cf007572f1d3d232be8191339434da305edcf617473

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "511f346ba84f47b55e638f42461d447eede6254532147cfe03cc80eff6e33b0d",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-07-31T14:19:33Z",
    "title_canon_sha256": "b27cfcbddf72f98d46182ce9149fac02da735b82e2be0f78ba88b263705f3b6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.29455",
    "kind": "arxiv",
    "version": 1
  }
}