Pith Number

pith:NIYHPNPD

pith:2015:NIYHPNPDVZ7ARY7FCQHGBBJBVC

not attested not anchored not stored refs pending

On the black hole limit of rotating discs of charged dust

Martin Breithaupt, Reinhard Meinel, Stefan Palenta, Yu-Chun Liu

arxiv:1502.02930 v2 · 2015-02-10 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NIYHPNPDVZ7ARY7FCQHGBBJBVC}

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	2026-05-18T01:49:55.716997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a3077b5e3ae7e08e3e5140e608521a8a4d0ddd3bccf622161c486fd6df837cd

Aliases

arxiv: 1502.02930 · arxiv_version: 1502.02930v2 · doi: 10.48550/arxiv.1502.02930 · pith_short_12: NIYHPNPDVZ7A · pith_short_16: NIYHPNPDVZ7ARY7F · pith_short_8: NIYHPNPD

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/NIYHPNPDVZ7ARY7FCQHGBBJBVC \
  | 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: 6a3077b5e3ae7e08e3e5140e608521a8a4d0ddd3bccf622161c486fd6df837cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7304377e7fd4d16e72e0ff6d9c5ebf321c5ec9abaa8a33f6b2a42b233d8fc9d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-02-10T15:02:38Z",
    "title_canon_sha256": "329c382d8aef3c76bdfceef1ae997fddb1dfed84d265b754115f57c68bb41c73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02930",
    "kind": "arxiv",
    "version": 2
  }
}