Pith Number

pith:2UN3YXTP

pith:2025:2UN3YXTPK4RRSHSV2FL7C4EXIO

not attested not anchored not stored refs pending

Statistical Analyses of Solar Active Region in SDO/HMI Magnetograms detected by Unsupervised Machine Learning Method DSARD

Chenxi Shi, Pengfei Chen, Qi Hao, Ruishuo Chen, Wutong Lu, Yifan Meng

arxiv:2502.17990 v1 · 2025-02-25 · astro-ph.SR · astro-ph.IM · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2UN3YXTPK4RRSHSV2FL7C4EXIO}

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.

Cited by

1 paper in Pith

Deep Learning with Magnetic Parameter Constraints for Short-Term Prediction of Solar Active Region Vector Magnetic Fields

Receipt and verification

First computed	2026-07-05T10:19:47.539342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d51bbc5e6f5723191e55d157f17097439bc9df003727c3829279559a0dfa1476

Aliases

arxiv: 2502.17990 · arxiv_version: 2502.17990v1 · doi: 10.48550/arxiv.2502.17990 · pith_short_12: 2UN3YXTPK4RR · pith_short_16: 2UN3YXTPK4RRSHSV · pith_short_8: 2UN3YXTP

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/2UN3YXTPK4RRSHSV2FL7C4EXIO \
  | 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: d51bbc5e6f5723191e55d157f17097439bc9df003727c3829279559a0dfa1476

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e71c9de44dec692f575e9d364edc7796c9aecde97e410375838a6134c041d3c6",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.space-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-02-25T08:57:25Z",
    "title_canon_sha256": "e6b6b9e39a1b945c71684eee824c3ff69a2f877c71a5f3d86556fa94b4b340e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.17990",
    "kind": "arxiv",
    "version": 1
  }
}