Pith Number

pith:UP6FF577

pith:2020:UP6FF577NON5KJD5ZFIHGF5KEJ

not attested not anchored not stored refs pending

Analysis of full disc Ca II K spectroheliograms III. Plage area composite series covering 1892-2019

Adriana Garcia, Ana Louren\c{c}o, Andrey G. Tlatov, Dipankar Banerjee, Gennady P. Marchenko, Ilaria Ermolli, Jan Klime\v{s}, Jean-Marie Malherbe, Manjunath Hegde, Marcel Belik, Natalie A. Krivova, Nuno Peixinho, Ricardo Gafeira, Sami K. Solanki, Takashi Sakurai, Teresa Barata, Theodosios Chatzistergos, Viktor V. Korokhin, Yoichiro Hanaoka

arxiv:2005.01435 v1 · 2020-05-04 · 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{UP6FF577NON5KJD5ZFIHGF5KEJ}

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	2026-07-05T01:19:03.748016Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3fc52f7ff6b9bd5247dc9507317aa227ffc05ac1b7f0eb5b3c6c3dfecce904f

Aliases

arxiv: 2005.01435 · arxiv_version: 2005.01435v1 · doi: 10.48550/arxiv.2005.01435 · pith_short_12: UP6FF577NON5 · pith_short_16: UP6FF577NON5KJD5 · pith_short_8: UP6FF577

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/UP6FF577NON5KJD5ZFIHGF5KEJ \
  | 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: a3fc52f7ff6b9bd5247dc9507317aa227ffc05ac1b7f0eb5b3c6c3dfecce904f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb47b27888f0931d5ac14fe549cc11edd0237b0a487f0d20f8b2ad0d45ead13d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-05-04T12:44:41Z",
    "title_canon_sha256": "43f2761db3a88bfc921f5a719980ce2acd7ef536c9e0c7d8d15e202b805f805a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.01435",
    "kind": "arxiv",
    "version": 1
  }
}