Pith Number

pith:CFMXB457

pith:2012:CFMXB457IU3F7NVTHD4UZPYWSR

not attested not anchored not stored refs pending

A Comparison Between Nonlinear Force-Free Field and Potential Field Models Using Full-Disk SDO/HMI Magnetogram

A. Pevtsov, B.Inhester, K.Olson, P. J. MacNeice, Tilaye Tadesse, T. Wiegelmann

arxiv:1212.5639 v2 · 2012-12-22 · 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{CFMXB457IU3F7NVTHD4UZPYWSR}

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	2026-05-18T01:52:28.976432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

115970f3bf45365fb6b338f94cbf169472245112d9aaeff32928f18274eded2b

Aliases

arxiv: 1212.5639 · arxiv_version: 1212.5639v2 · doi: 10.48550/arxiv.1212.5639 · pith_short_12: CFMXB457IU3F · pith_short_16: CFMXB457IU3F7NVT · pith_short_8: CFMXB457

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/CFMXB457IU3F7NVTHD4UZPYWSR \
  | 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: 115970f3bf45365fb6b338f94cbf169472245112d9aaeff32928f18274eded2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c541553dde67018d2b9db1c051ff72aa394abe0ea04535cbf8045abd5bc4182",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-12-22T00:29:40Z",
    "title_canon_sha256": "fb94434d6a1393b95f50c7c6140a11ef0ac40bbfb60ccb7be1e751569d459a9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5639",
    "kind": "arxiv",
    "version": 2
  }
}