Pith Number

pith:WW74TYEZ

pith:2015:WW74TYEZY4LAIJNJA6BI6UW22M

not attested not anchored not stored refs pending

$\delta$-Sunspot Formation in Simulation of Active-Region-Scale Flux Emergence

Fang Fang, Yuhong Fan

arxiv:1504.04393 v1 · 2015-04-16 · 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{WW74TYEZY4LAIJNJA6BI6UW22M}

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	2026-05-18T01:48:06.172082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5bfc9e099c7160425a907828f52dad32df9acc00649558fbace1c52f0da1e40

Aliases

arxiv: 1504.04393 · arxiv_version: 1504.04393v1 · doi: 10.48550/arxiv.1504.04393 · pith_short_12: WW74TYEZY4LA · pith_short_16: WW74TYEZY4LAIJNJ · pith_short_8: WW74TYEZ

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/WW74TYEZY4LAIJNJA6BI6UW22M \
  | 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: b5bfc9e099c7160425a907828f52dad32df9acc00649558fbace1c52f0da1e40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba1deec5a1360321dc270ed3b6ce97f796a7be84895d97efb2da83061b2a4ca9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-16T21:50:49Z",
    "title_canon_sha256": "f746a553c3c1b621a509fc8532c390b00a06b5c699ff959e1b147bc3b9dd99ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04393",
    "kind": "arxiv",
    "version": 1
  }
}