Pith Number

pith:GRGCPOZI

pith:2009:GRGCPOZIIAW5KLR3NOUYOWZTJZ

not attested not anchored not stored refs pending

Solar Activity Phases and Intermediate-degree Mode Frequencies

F. Hill (NSO), Kiran Jain, S. C. Tripathy

arxiv:0902.1557 v1 · 2009-02-09 · 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{GRGCPOZIIAW5KLR3NOUYOWZTJZ}

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	2026-05-18T04:29:16.716338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

344c27bb28402dd52e3b6ba9875b334e56b6c0c6a3835b20f6ab09672fe93c49

Aliases

arxiv: 0902.1557 · arxiv_version: 0902.1557v1 · doi: 10.48550/arxiv.0902.1557 · pith_short_12: GRGCPOZIIAW5 · pith_short_16: GRGCPOZIIAW5KLR3 · pith_short_8: GRGCPOZI

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/GRGCPOZIIAW5KLR3NOUYOWZTJZ \
  | 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: 344c27bb28402dd52e3b6ba9875b334e56b6c0c6a3835b20f6ab09672fe93c49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ee375331200c4e42d9e1e38b28f098cbcdc46db7f5b9f80b0f11c2437a67166",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-02-09T23:02:07Z",
    "title_canon_sha256": "33ff480fbf8153a0c933d19d17fe6c050b196421f06a56e6a9e4aa6a05f204fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1557",
    "kind": "arxiv",
    "version": 1
  }
}