Pith Number

pith:IEPPQPKU

pith:2015:IEPPQPKUNTYMXTOBADCWO4IRWP

not attested not anchored not stored refs pending

Current helicity and magnetic field anisotropy in solar active regions

D. Sokoloff, H. Xu, H. Zhang, K. Kuzanyan, R. Stepanov, Y. Gao

arxiv:1509.02652 v1 · 2015-09-09 · 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{IEPPQPKUNTYMXTOBADCWO4IRWP}

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	2026-05-18T01:29:44.746811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

411ef83d546cf0cbcdc100c5677111b3fd76a421129e49ba01a03650657f301a

Aliases

arxiv: 1509.02652 · arxiv_version: 1509.02652v1 · doi: 10.48550/arxiv.1509.02652 · pith_short_12: IEPPQPKUNTYM · pith_short_16: IEPPQPKUNTYMXTOB · pith_short_8: IEPPQPKU

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/IEPPQPKUNTYMXTOBADCWO4IRWP \
  | 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: 411ef83d546cf0cbcdc100c5677111b3fd76a421129e49ba01a03650657f301a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8b0343a8e7769aeaad9f57f4b9be24dc7c691a590b198149a7580b5cd0fc1db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-09-09T06:46:17Z",
    "title_canon_sha256": "baac966f02aac93d53fb84c2b5e255f2e22b421a3fb7a0e8ca0e281557bbd9be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02652",
    "kind": "arxiv",
    "version": 1
  }
}