Pith Number

pith:4PQA5SHQ

pith:2000:4PQA5SHQOXVUQHSTGNG7OM652Q

not attested not anchored not stored refs pending

The Dependence of Dynamo $\alpha$-Effect on Reynolds Numbers, Magnetic Prandtl Number, and the Statistics of MHD Turbulence

Hongsong Chou

arxiv:astro-ph/0009389 v2 · 2000-09-25 · 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{4PQA5SHQOXVUQHSTGNG7OM652Q}

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	2026-07-04T16:17:11.551105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3e00ec8f075eb481e53334df733ddd41bf958670e387d13b500de6f4c78ddf5

Aliases

arxiv: astro-ph/0009389 · arxiv_version: astro-ph/0009389v2 · doi: 10.48550/arxiv.astro-ph/0009389 · pith_short_12: 4PQA5SHQOXVU · pith_short_16: 4PQA5SHQOXVUQHST · pith_short_8: 4PQA5SHQ

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/4PQA5SHQOXVUQHSTGNG7OM652Q \
  | 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: e3e00ec8f075eb481e53334df733ddd41bf958670e387d13b500de6f4c78ddf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faae3cac82f0e089b75f22d57ddcbcf09d8f4b5b14a6b914091869b3e9c7ec6d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-09-25T12:43:44Z",
    "title_canon_sha256": "b33b2c772f41521f05cd62b336e255fc4c140e0eddacecc5bafccf90ed9d4d77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0009389",
    "kind": "arxiv",
    "version": 2
  }
}