Pith Number

pith:QZAMIJKN

pith:2017:QZAMIJKN7R3MEHGZXYCVYSZ6MM

not attested not anchored not stored refs pending

Spatial-temporal forecasting the sunspot diagram

Eurico Covas

arxiv:1709.02796 v1 · 2017-09-08 · 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{QZAMIJKN7R3MEHGZXYCVYSZ6MM}

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	2026-05-18T00:35:44.699609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8640c4254dfc76c21cd9be055c4b3e63123335aeee231efa209603c87ab99dee

Aliases

arxiv: 1709.02796 · arxiv_version: 1709.02796v1 · doi: 10.48550/arxiv.1709.02796 · pith_short_12: QZAMIJKN7R3M · pith_short_16: QZAMIJKN7R3MEHGZ · pith_short_8: QZAMIJKN

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/QZAMIJKN7R3MEHGZXYCVYSZ6MM \
  | 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: 8640c4254dfc76c21cd9be055c4b3e63123335aeee231efa209603c87ab99dee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c7ccafb698b0de744ddb1984505576b831482bc3e0e6742c44a8199ddeaf428",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-09-08T17:59:14Z",
    "title_canon_sha256": "6c2b207ea8c2c655cd6897160049f1f57b5fb20582ae0acc4b8ee66120749c7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02796",
    "kind": "arxiv",
    "version": 1
  }
}