Pith Number

pith:YVDR657I

pith:2009:YVDR657IUVMGEX2JZTSJAZVP2M

not attested not anchored not stored refs pending

Multiple and changing cycles of active stars II. Results

A.F. Lanza, G. Cutispoto, H. Korhonen, K.G. Strassmeier, K. Ol\'ah, S. J\"arvinen, S.L. Baliunas, S. Messina, T. Granzer, W. Soon, Z. Koll\'ath

arxiv:0904.1747 v1 · 2009-04-10 · 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{YVDR657IUVMGEX2JZTSJAZVP2M}

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	2026-05-18T02:14:06.511285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5471f77e8a558625f49cce49066afd330886e19eeea9c2244ad776cef5e2a05

Aliases

arxiv: 0904.1747 · arxiv_version: 0904.1747v1 · doi: 10.48550/arxiv.0904.1747 · pith_short_12: YVDR657IUVMG · pith_short_16: YVDR657IUVMGEX2J · pith_short_8: YVDR657I

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/YVDR657IUVMGEX2JZTSJAZVP2M \
  | 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: c5471f77e8a558625f49cce49066afd330886e19eeea9c2244ad776cef5e2a05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdb9e8ca72b10901d0351551c6f59246d3e65a8094f97816e858d9f257cd6338",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-10T20:05:48Z",
    "title_canon_sha256": "f3bcd7456987e82ec63304fbf600d68eff84e9b9dcb995df7c0772d36a166a95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1747",
    "kind": "arxiv",
    "version": 1
  }
}