Pith Number

pith:W7YORQ55

pith:2012:W7YORQ55LZPFT5JLSJNLD6URA6

not attested not anchored not stored refs pending

Contracting and Erupting Components of Sigmoidal Active Regions

Chang Liu, Haimin Wang, Rui Liu, Tibor T\"or\"ok, Yuming Wang

arxiv:1208.0640 v1 · 2012-08-03 · 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{W7YORQ55LZPFT5JLSJNLD6URA6}

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	2026-05-18T01:55:23.546422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7f0e8c3bd5e5e59f52b925ab1fa9107b95ad38b189790648d18630d2d7ebde6

Aliases

arxiv: 1208.0640 · arxiv_version: 1208.0640v1 · doi: 10.48550/arxiv.1208.0640 · pith_short_12: W7YORQ55LZPF · pith_short_16: W7YORQ55LZPFT5JL · pith_short_8: W7YORQ55

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/W7YORQ55LZPFT5JLSJNLD6URA6 \
  | 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: b7f0e8c3bd5e5e59f52b925ab1fa9107b95ad38b189790648d18630d2d7ebde6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3dae09a045dfd8609c663de3c59aff037f0e8ef55e1954f94587d375cf2d8e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-08-03T01:28:43Z",
    "title_canon_sha256": "50bd46171cd5b37cff8b46baedf19e0069b46d21cf3d35dd46820ce749524428"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0640",
    "kind": "arxiv",
    "version": 1
  }
}