Pith Number

pith:VFJBR5FI

pith:1998:VFJBR5FIGFDDXYY55IRHTEP4XC

not attested not anchored not stored refs pending

Nonlinear Alpha Effect in Dynamo Theory

Eric G. Blackman, George B. Field, Hongsong Chou

arxiv:astro-ph/9810345 v1 · 1998-10-21 · 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{VFJBR5FIGFDDXYY55IRHTEP4XC}

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	2026-07-04T16:07:07.694137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a95218f4a831463be31dea227991fcb8b49f0d2de333f1b62dd8a235410c1b95

Aliases

arxiv: astro-ph/9810345 · arxiv_version: astro-ph/9810345v1 · doi: 10.48550/arxiv.astro-ph/9810345 · pith_short_12: VFJBR5FIGFDD · pith_short_16: VFJBR5FIGFDDXYY5 · pith_short_8: VFJBR5FI

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/VFJBR5FIGFDDXYY55IRHTEP4XC \
  | 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: a95218f4a831463be31dea227991fcb8b49f0d2de333f1b62dd8a235410c1b95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "572f4261d558ba65c8ce6a5bac7afea005f2e88b694ca77f3edff3e46693f690",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-10-21T18:32:55Z",
    "title_canon_sha256": "db672b13f55f97fe2ab6e47e0925469ef8adff546bbe1f862fa977a266e07e12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9810345",
    "kind": "arxiv",
    "version": 1
  }
}