Pith Number

pith:2I72TPHN

pith:2018:2I72TPHNQE3YP4FXW6O4USJZLJ

not attested not anchored not stored refs pending

Predicting a solar cycle before its onset using a flux transport dynamo model

Arnab Rai Choudhuri

arxiv:1808.08543 v1 · 2018-08-26 · 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{2I72TPHNQE3YP4FXW6O4USJZLJ}

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	2026-05-18T00:06:36.703504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d23fa9bced813787f0b7b79dca49395a4d3e3ce244cf47a6372ee04c05cc5dc8

Aliases

arxiv: 1808.08543 · arxiv_version: 1808.08543v1 · doi: 10.48550/arxiv.1808.08543 · pith_short_12: 2I72TPHNQE3Y · pith_short_16: 2I72TPHNQE3YP4FX · pith_short_8: 2I72TPHN

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/2I72TPHNQE3YP4FXW6O4USJZLJ \
  | 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: d23fa9bced813787f0b7b79dca49395a4d3e3ce244cf47a6372ee04c05cc5dc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b5c0f1e7fc372d72e5345cbc77d2b0df93ab69d3a05433c18b0cf190dbc72cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-08-26T12:40:43Z",
    "title_canon_sha256": "a1eba04a9a551da529e5c12de48ed37750e85278dc7aa3c17ca3cfbb3482d1a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.08543",
    "kind": "arxiv",
    "version": 1
  }
}