Pith Number

pith:YI42SHCV

pith:2018:YI42SHCVLKLT75HM2DXSCD3LWR

not attested not anchored not stored refs pending

Spiral-shaped wavefronts in a sunspot umbra

C. Kuckein, E. Khomenko, I. Thaler, T. Felipe

arxiv:1810.11257 v1 · 2018-10-26 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YI42SHCVLKLT75HM2DXSCD3LWR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:56:45.195894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c239a91c555a973ff4ecd0ef210f6bb451e49f69b8e4edd637cdb9bbd6860175

Aliases

arxiv: 1810.11257 · arxiv_version: 1810.11257v1 · doi: 10.48550/arxiv.1810.11257 · pith_short_12: YI42SHCVLKLT · pith_short_16: YI42SHCVLKLT75HM · pith_short_8: YI42SHCV

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/YI42SHCVLKLT75HM2DXSCD3LWR \
  | 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: c239a91c555a973ff4ecd0ef210f6bb451e49f69b8e4edd637cdb9bbd6860175

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "392acdfb90c2f0980f6d3cb88dbbd73b8274ebc2389791edc53d606064adb0d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-10-26T10:42:04Z",
    "title_canon_sha256": "def2f1aaf5a8007fab188155f867028a5b6e53d08c61038a85998c7aa475a114"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.11257",
    "kind": "arxiv",
    "version": 1
  }
}