Pith Number

pith:6D2W6AVI

pith:2012:6D2W6AVIQXYWRVSO7WXBR2WUKB

not attested not anchored not stored refs pending

Magnetic topology of a naked sunspot: Is it really naked?

A. Sainz Dalda, S. Vargas Dominguez, T. D. Tarbell

arxiv:1202.0591 v1 · 2012-02-03 · 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{6D2W6AVIQXYWRVSO7WXBR2WUKB}

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	2026-05-18T04:03:08.490896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0f56f02a885f168d64efdae18ead4505018efa71b477971f70ea1ae1931a85f

Aliases

arxiv: 1202.0591 · arxiv_version: 1202.0591v1 · doi: 10.48550/arxiv.1202.0591 · pith_short_12: 6D2W6AVIQXYW · pith_short_16: 6D2W6AVIQXYWRVSO · pith_short_8: 6D2W6AVI

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/6D2W6AVIQXYWRVSO7WXBR2WUKB \
  | 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: f0f56f02a885f168d64efdae18ead4505018efa71b477971f70ea1ae1931a85f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c38c6b92a0ab1df3131e481c46b604f13c772895bdcbefbf92576d1cb0c75157",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-02-03T00:50:13Z",
    "title_canon_sha256": "c5c1c3b801458199e49a947f6f33d6e892abc6a015b8145790e2da8a8ab9bafa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0591",
    "kind": "arxiv",
    "version": 1
  }
}