Pith Number

pith:BZSRYHWB

pith:2011:BZSRYHWBTCLFW4J5E2JUKC3WDE

not attested not anchored not stored refs pending

Solar cycle variations in the growth and decay of sunspot groups

J. Javaraiah

arxiv:1111.3201 v1 · 2011-11-14 · 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{BZSRYHWBTCLFW4J5E2JUKC3WDE}

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	2026-05-18T01:59:33.821943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e651c1ec198965b713d2693450b76191e1ade51115c1f4ff2ce1d3589d13ecd

Aliases

arxiv: 1111.3201 · arxiv_version: 1111.3201v1 · doi: 10.48550/arxiv.1111.3201 · pith_short_12: BZSRYHWBTCLF · pith_short_16: BZSRYHWBTCLFW4J5 · pith_short_8: BZSRYHWB

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/BZSRYHWBTCLFW4J5E2JUKC3WDE \
  | 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: 0e651c1ec198965b713d2693450b76191e1ade51115c1f4ff2ce1d3589d13ecd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfe283e79de168aeb64ee2db9d6ebcf0e698cd33a528ab443c9e5f405007f2b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-14T13:13:43Z",
    "title_canon_sha256": "5be09d934b086b326597d3469b8c3f7b2d3a8187ecee8f38503e65346c7bb483"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3201",
    "kind": "arxiv",
    "version": 1
  }
}