Pith Number

pith:EZT7KAKQ

pith:1999:EZT7KAKQJS44EHQCNNIO4FTI3L

not attested not anchored not stored refs pending

Evolution of Hydromagnetic Disturbances in Low Ionized Cosmic Plasmas

Hideko Nomura (1), Hideyuki Kamaya (1), Shin Mineshige (1) ((1) Kyoto University)

arxiv:astro-ph/9909224 v1 · 1999-09-14 · astro-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{EZT7KAKQJS44EHQCNNIO4FTI3L}

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	2026-05-18T01:40:12.671129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2667f501504cb9c21e026b50ee1668dae07ec604169b994e923100e29e7bdec6

Aliases

arxiv: astro-ph/9909224 · arxiv_version: astro-ph/9909224v1 · doi: 10.48550/arxiv.astro-ph/9909224 · pith_short_12: EZT7KAKQJS44 · pith_short_16: EZT7KAKQJS44EHQC · pith_short_8: EZT7KAKQ

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/EZT7KAKQJS44EHQCNNIO4FTI3L \
  | 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: 2667f501504cb9c21e026b50ee1668dae07ec604169b994e923100e29e7bdec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c253a6a410947bc19ba0452c9a77df8479240a3b21d695c11d37cef94cf8445",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-09-14T07:44:52Z",
    "title_canon_sha256": "78048e120a5f2d9c3dbe41a2a2d13f34116d835aa0014f30abeefb4ffef91f07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9909224",
    "kind": "arxiv",
    "version": 1
  }
}