Pith Number

pith:K3SLKAHO

pith:2009:K3SLKAHOHQWXU6JKMQETELMOMD

not attested not anchored not stored refs pending

The spin dependence of the Blandford-Znajek effect

David Garofalo

arxiv:0904.3486 v1 · 2009-04-22 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K3SLKAHOHQWXU6JKMQETELMOMD}

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	2026-05-18T04:29:43.354487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56e4b500ee3c2d7a792a6409322d8e60ded0a21113236e6697a9adcecb764392

Aliases

arxiv: 0904.3486 · arxiv_version: 0904.3486v1 · doi: 10.48550/arxiv.0904.3486 · pith_short_12: K3SLKAHOHQWX · pith_short_16: K3SLKAHOHQWXU6JK · pith_short_8: K3SLKAHO

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/K3SLKAHOHQWXU6JKMQETELMOMD \
  | 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: 56e4b500ee3c2d7a792a6409322d8e60ded0a21113236e6697a9adcecb764392

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c20ac80db1c647fc12ae36a2b3381de134baa1e680e8042d202dfa091241e55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-04-22T16:32:21Z",
    "title_canon_sha256": "1d97e6f6b253d46fd473b9280a867d3e0f3d1ec3cddedf5fd6c3cf13efddde58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3486",
    "kind": "arxiv",
    "version": 1
  }
}