Pith Number

pith:Q7QTBYGB

pith:2009:Q7QTBYGB27F2INJ7HM4UTG5BYM

not attested not anchored not stored refs pending

Differential coronal rotation using radio images at 17 GHz

Ahmedabad - 380 009, Hari Om Vats (Physical Research Laboratory, India), Kanpur - 208 001, K. N. Iyer (Department of Physics, PPN College, Rajkot - 360 005, Satish Chandra (Department of Physics, Saurastra University

arxiv:0909.2786 v1 · 2009-09-15 · 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{Q7QTBYGB27F2INJ7HM4UTG5BYM}

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	2026-05-18T02:11:47.768562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87e130e0c1d7cba4353f3b39499ba1c331fa0a1cbe8da68c172c6be4ce3062d5

Aliases

arxiv: 0909.2786 · arxiv_version: 0909.2786v1 · doi: 10.48550/arxiv.0909.2786 · pith_short_12: Q7QTBYGB27F2 · pith_short_16: Q7QTBYGB27F2INJ7 · pith_short_8: Q7QTBYGB

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/Q7QTBYGB27F2INJ7HM4UTG5BYM \
  | 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: 87e130e0c1d7cba4353f3b39499ba1c331fa0a1cbe8da68c172c6be4ce3062d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a70d71f8967dcd7b9327b8bf1c32fba1ea4dc8c7e22a498527eb53e15dbdfa6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-15T12:09:27Z",
    "title_canon_sha256": "c26f2a9dea6ef6f3d3df5c2f18999f7a802a582200e1daa67569ec8edd1894e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2786",
    "kind": "arxiv",
    "version": 1
  }
}