Pith Number

pith:OYV3RXEN

pith:2010:OYV3RXENQV73QX35RXD3BTM7JC

not attested not anchored not stored refs pending

Relationship between group sunspot number and Wolf sunspot number

Hongfei Liang, Kejun Li

arxiv:1006.2203 v1 · 2010-06-11 · 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{OYV3RXENQV73QX35RXD3BTM7JC}

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	2026-05-18T02:06:54.753627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

762bb8dc8d857fb85f7d8dc7b0cd9f4886ee020de981242e10b8779d0ea023d1

Aliases

arxiv: 1006.2203 · arxiv_version: 1006.2203v1 · doi: 10.48550/arxiv.1006.2203 · pith_short_12: OYV3RXENQV73 · pith_short_16: OYV3RXENQV73QX35 · pith_short_8: OYV3RXEN

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/OYV3RXENQV73QX35RXD3BTM7JC \
  | 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: 762bb8dc8d857fb85f7d8dc7b0cd9f4886ee020de981242e10b8779d0ea023d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73923b7db87cb4a5ea76df2d8f1479a78d456d2fa2a0c99b154246971dcdcd30",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-06-11T05:53:50Z",
    "title_canon_sha256": "5fb229f05ac64d149e239d94211474286a3b46d119e59598ad7b825dda659da8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.2203",
    "kind": "arxiv",
    "version": 1
  }
}