Pith Number

pith:2Z5JFHM5

pith:2013:2Z5JFHM5JRROT2SZKUIBMY4W7V

not attested not anchored not stored refs pending

Changes in quasi-periodic variations of solar photospheric fields: precursor to the deep solar minimum in the cycle 23?

Ankur Divekar, D. Chakrabarty, P. Janardhan, S. Ananthakrishnan, Susanta Kumar Bisoi

arxiv:1304.8012 v1 · 2013-04-28 · 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{2Z5JFHM5JRROT2SZKUIBMY4W7V}

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	2026-05-18T01:50:14.074809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d67a929d9d4c62e9ea595510166396fd53b080d9548faf724fe5765b73ff5acb

Aliases

arxiv: 1304.8012 · arxiv_version: 1304.8012v1 · doi: 10.48550/arxiv.1304.8012 · pith_short_12: 2Z5JFHM5JRRO · pith_short_16: 2Z5JFHM5JRROT2SZ · pith_short_8: 2Z5JFHM5

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/2Z5JFHM5JRROT2SZKUIBMY4W7V \
  | 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: d67a929d9d4c62e9ea595510166396fd53b080d9548faf724fe5765b73ff5acb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c10233c5ad97daab016980df7b4175fc12f0efc6c681696d0004e1e5fb6cba43",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-04-28T16:04:41Z",
    "title_canon_sha256": "e3d71e72c52ea5c81bcbf1e9afdee837b547aaea0cb445882dd114232ab47c31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.8012",
    "kind": "arxiv",
    "version": 1
  }
}