Pith Number

pith:VKX2IZ43

pith:2009:VKX2IZ43DQHF6YZSN3HR3SM5LP

not attested not anchored not stored refs pending

Comparison of the sidereal angular velocity of subphotospheric layers and small bright coronal structures during the declining phase of solar cycle 23

Amel Zaatri, Hubertus Woehl, Markus Roth, Roman Brajsa, Thierry Corbard

arxiv:0907.4099 v1 · 2009-07-23 · 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{VKX2IZ43DQHF6YZSN3HR3SM5LP}

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	2026-05-18T02:12:54.230104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aaafa4679b1c0e5f63326ecf1dc99d5bcf4d23d06c3fa6cd003dd41441b937c7

Aliases

arxiv: 0907.4099 · arxiv_version: 0907.4099v1 · doi: 10.48550/arxiv.0907.4099 · pith_short_12: VKX2IZ43DQHF · pith_short_16: VKX2IZ43DQHF6YZS · pith_short_8: VKX2IZ43

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/VKX2IZ43DQHF6YZSN3HR3SM5LP \
  | 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: aaafa4679b1c0e5f63326ecf1dc99d5bcf4d23d06c3fa6cd003dd41441b937c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e06cc7621b6e41912173e017cda5595a74f82b0151586b721d1e76e8ee218546",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-23T15:40:35Z",
    "title_canon_sha256": "1f91a8136233598a4787f3ea81d9c5ad13f7b8c30f67b62452787423f79e4dfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4099",
    "kind": "arxiv",
    "version": 1
  }
}