Pith Number

pith:E4QZA7UL

pith:2016:E4QZA7ULT65ST5UZTK5M3EAMLG

not attested not anchored not stored refs pending

Upper Chromospheric Magnetic Field of a Sunspot Penumbra: Observations of Fine Structure

A. Feller, A. Hofmann, A. Lagg, A. Pastor Yabar, C. Denker, C. Kiess, D. Orozco Su\'arez, D. Schmidt, D. Soltau, H. Balthasar, H. Nicklas, J. Joshi, J. Staude, K. G. Strassmeier, M. Collados, M. Franz, M. Sobotka, O. von der L\"uhe, R. Rezaei, R. Schlichenmaier, R. Volkmer, S. K. Solanki, T. Berkefeld, T. Waldmann, W. Schmidt

arxiv:1608.01988 v1 · 2016-08-05 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4QZA7ULT65ST5UZTK5M3EAMLG}

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	2026-05-18T00:56:19.880234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2721907e8b9fbb29f6999abacd900c59a93d9fd9f8059d5ba44d683b90d09968

Aliases

arxiv: 1608.01988 · arxiv_version: 1608.01988v1 · doi: 10.48550/arxiv.1608.01988 · pith_short_12: E4QZA7ULT65S · pith_short_16: E4QZA7ULT65ST5UZ · pith_short_8: E4QZA7UL

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/E4QZA7ULT65ST5UZTK5M3EAMLG \
  | 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: 2721907e8b9fbb29f6999abacd900c59a93d9fd9f8059d5ba44d683b90d09968

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ed529c4dca5423858fa8be9345b4adc79d39a4e85b2b7f1ddd881c2cd03d587",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-08-05T19:56:19Z",
    "title_canon_sha256": "80c34c447ea734015d1c2d66a15892342e5127b79f5483d77783c8b8e54300d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.01988",
    "kind": "arxiv",
    "version": 1
  }
}