Pith Number

pith:UJI4ISAY

pith:2004:UJI4ISAYOOMWOZWUMJSCWCTVUN

not attested not anchored not stored refs pending

A natural mechanism to induce an electric charge into a black hole

Dar\'io N\'u\~nez, Deborah Dultzin-Hacyan, Jes\'us Galindo Trejo, Jos\'e A. de Diego

arxiv:astro-ph/0405237 v1 · 2004-05-12 · 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{UJI4ISAYOOMWOZWUMJSCWCTVUN}

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	2026-05-18T01:09:03.298064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a251c4481873996766d462642b0a75a341f459f246b4d8abf676bf6045f7147a

Aliases

arxiv: astro-ph/0405237 · arxiv_version: astro-ph/0405237v1 · doi: 10.48550/arxiv.astro-ph/0405237 · pith_short_12: UJI4ISAYOOMW · pith_short_16: UJI4ISAYOOMWOZWU · pith_short_8: UJI4ISAY

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/UJI4ISAYOOMWOZWUMJSCWCTVUN \
  | 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: a251c4481873996766d462642b0a75a341f459f246b4d8abf676bf6045f7147a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86d5dfaf641af04ba9403ad3b24087bdc811ef48b461e61043ebf20bfbbdbfc7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-05-12T19:37:42Z",
    "title_canon_sha256": "ecb324c32c0567f429a303ef5935846412ab8f8e0e428230f01394105335f93d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0405237",
    "kind": "arxiv",
    "version": 1
  }
}