Pith Number

pith:P545L67K

pith:2022:P545L67KEMH2PLVGOVYHB7KNF3

not attested not anchored not stored refs pending

Polar regions activity and the prediction of the height of the solar cycle 25

B. Filippov, E. Tavabi, J-C. Noens, O. Wurmser, S. Koutchmy

arxiv:2205.09089 v1 · 2022-05-18 · 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{P545L67KEMH2PLVGOVYHB7KNF3}

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	2026-07-05T04:24:32.600227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f79d5fbea230fa7aea6757070fd4d2eca5af6a3b4321509f93d4ea5075c96e8

Aliases

arxiv: 2205.09089 · arxiv_version: 2205.09089v1 · doi: 10.48550/arxiv.2205.09089 · pith_short_12: P545L67KEMH2 · pith_short_16: P545L67KEMH2PLVG · pith_short_8: P545L67K

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/P545L67KEMH2PLVGOVYHB7KNF3 \
  | 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: 7f79d5fbea230fa7aea6757070fd4d2eca5af6a3b4321509f93d4ea5075c96e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b778c7691988c028fb9d768c51a9c90536733b616100be2db56362030cf4caf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-05-18T17:29:58Z",
    "title_canon_sha256": "67a3239e05c76f533c13706cf5d721e10a33f371ec505b8c0eae5faf80b13578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.09089",
    "kind": "arxiv",
    "version": 1
  }
}