Pith Number

pith:CZWAAORE

pith:2018:CZWAAORENGAXZ6D35CZS52JVSZ

not attested not anchored not stored refs pending

Sunspot group tilt angles from drawings for cycles 19-24

Bahar B. Kabasakal, Emre Isik, Seda Isik

arxiv:1804.10479 v1 · 2018-04-27 · 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{CZWAAORENGAXZ6D35CZS52JVSZ}

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	2026-05-17T23:59:22.785324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

166c003a2469817cf87be8b32ee9359661c8a7c49797adb3af5b7ed80f6d3b70

Aliases

arxiv: 1804.10479 · arxiv_version: 1804.10479v1 · doi: 10.48550/arxiv.1804.10479 · pith_short_12: CZWAAORENGAX · pith_short_16: CZWAAORENGAXZ6D3 · pith_short_8: CZWAAORE

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/CZWAAORENGAXZ6D35CZS52JVSZ \
  | 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: 166c003a2469817cf87be8b32ee9359661c8a7c49797adb3af5b7ed80f6d3b70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "077b4b2f86b4dc5503b416eb4c4fc80f49c95eda5511fa65d3ddce1962533b5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-27T12:53:01Z",
    "title_canon_sha256": "19f1e6025c75d049a73c2eeb1b06a64d800dee8ceb5f62df87fc8d66a9bb62db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10479",
    "kind": "arxiv",
    "version": 1
  }
}