Pith Number

pith:R2TXL5MM

pith:2011:R2TXL5MMIJJKI2MTC5EVHIQPEK

not attested not anchored not stored refs pending

Periodicities in the coronal rotation and sunspot numbers

Ahmedabad), Hari Om Vats (2)((1) Department of Physics, Kanpur (2) Physical Research Laboratory, PPN College, Satish Chandra (1)

arxiv:1103.2869 v1 · 2011-03-15 · 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{R2TXL5MMIJJKI2MTC5EVHIQPEK}

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	2026-05-18T02:02:53.412398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ea775f58c4252a46993174953a20f22b3d7c1ed7317ae33b6a489546fcec4b3

Aliases

arxiv: 1103.2869 · arxiv_version: 1103.2869v1 · doi: 10.48550/arxiv.1103.2869 · pith_short_12: R2TXL5MMIJJK · pith_short_16: R2TXL5MMIJJKI2MT · pith_short_8: R2TXL5MM

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/R2TXL5MMIJJKI2MTC5EVHIQPEK \
  | 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: 8ea775f58c4252a46993174953a20f22b3d7c1ed7317ae33b6a489546fcec4b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51cdd6635e5086b7edc9ae432f80c59fd3f47c0e338fd27ccc5b471045920317",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-03-15T10:00:51Z",
    "title_canon_sha256": "8eb019fd83a57f6653c494393b2328fd1f2dc74bc985695752b33b1bbc1a5f09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2869",
    "kind": "arxiv",
    "version": 1
  }
}