Pith Number

pith:7KGZI5WS

pith:2011:7KGZI5WSFGS252ZGIDVGTYFHQK

not attested not anchored not stored refs pending

Convective Nature of Sunspot Penumbral Filaments: Discovery of Downflows in the Deep Photosphere

A. Pietarila, Jayant Joshi, J. Hirzberger, L. Merenda, R. Aznar Cuadrado, S. K. Solanki

arxiv:1105.1877 v1 · 2011-05-10 · 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{7KGZI5WSFGS252ZGIDVGTYFHQK}

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	2026-05-18T02:02:02.121751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa8d9476d229a5aeeb2640ea69e0a7829f2b21604903b3970f2521844562b6c0

Aliases

arxiv: 1105.1877 · arxiv_version: 1105.1877v1 · doi: 10.48550/arxiv.1105.1877 · pith_short_12: 7KGZI5WSFGS2 · pith_short_16: 7KGZI5WSFGS252ZG · pith_short_8: 7KGZI5WS

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/7KGZI5WSFGS252ZGIDVGTYFHQK \
  | 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: fa8d9476d229a5aeeb2640ea69e0a7829f2b21604903b3970f2521844562b6c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b00bdacbc66c797290ff6b8c6429caeeeffadfd7cee98e35c9562ebb885d0d0c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-05-10T08:43:10Z",
    "title_canon_sha256": "81363271eb5f993e3b96e98404cd91d0e5c5915e149a584b77a555eba7756aeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1877",
    "kind": "arxiv",
    "version": 1
  }
}