Pith Number

pith:PPMY7AVJ

pith:2011:PPMY7AVJT4VZNI6WOZZFKH2QRT

not attested not anchored not stored refs pending

The Evolution of Sunspot Magnetic Fields Associated with a Solar Flare

D. Shaun Bloomfield, Peter T. Gallagher, Sophie A. Murray

arxiv:1105.1978 v1 · 2011-05-10 · 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{PPMY7AVJT4VZNI6WOZZFKH2QRT}

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	2026-05-18T04:03:32.389437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bd98f82a99f2b96a3d67672551f508cf288f4c4ca30532b64db2b31f26b3459

Aliases

arxiv: 1105.1978 · arxiv_version: 1105.1978v1 · doi: 10.48550/arxiv.1105.1978 · pith_short_12: PPMY7AVJT4VZ · pith_short_16: PPMY7AVJT4VZNI6W · pith_short_8: PPMY7AVJ

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/PPMY7AVJT4VZNI6WOZZFKH2QRT \
  | 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: 7bd98f82a99f2b96a3d67672551f508cf288f4c4ca30532b64db2b31f26b3459

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d60fd82a9edb7b6b7f793414502c68774d0cbac864850bf93c1c6a4c3d36b90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-05-10T15:33:10Z",
    "title_canon_sha256": "f8a9e766743a249d5e0258aaceedb59278876b84a12c53b1b62c52a00b803a4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1978",
    "kind": "arxiv",
    "version": 1
  }
}