Pith Number

pith:CDN2J6RN

pith:2016:CDN2J6RNOOWZSTUR5HKR5JRNBO

not attested not anchored not stored refs pending

Unusual Polar Conditions in Solar Cycle 24 and their Implications for Cycle 25

Nat Gopalswamy, Sachiko Akiyama, Seiji Yashiro

arxiv:1605.02217 v1 · 2016-05-07 · 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{CDN2J6RNOOWZSTUR5HKR5JRNBO}

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	2026-05-18T01:13:47.057608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10dba4fa2d73ad994e91e9d51ea62d0bbdeaa1f8e6bf9f20fdafd37dcca8d197

Aliases

arxiv: 1605.02217 · arxiv_version: 1605.02217v1 · doi: 10.48550/arxiv.1605.02217 · pith_short_12: CDN2J6RNOOWZ · pith_short_16: CDN2J6RNOOWZSTUR · pith_short_8: CDN2J6RN

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/CDN2J6RNOOWZSTUR5HKR5JRNBO \
  | 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: 10dba4fa2d73ad994e91e9d51ea62d0bbdeaa1f8e6bf9f20fdafd37dcca8d197

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a923c98b8a26282335f2829c889c6f25abf6d04b1b5f638ff9ee4c75124c9fbd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-05-07T17:02:39Z",
    "title_canon_sha256": "1b9e8df3ca6b60a0555544712a6ada8d71d2d164891511b18fb1a792ed95cbd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02217",
    "kind": "arxiv",
    "version": 1
  }
}