Pith Number

pith:UDHKXQWR

pith:2009:UDHKXQWRZOUMKMXVXKUH7CFQV2

not attested not anchored not stored refs pending

Charged Boson Stars and Black Holes

Burkhard Kleihaus, Claus Laemmerzahl, Jutta Kunz, Meike List

arxiv:0902.4799 v1 · 2009-02-27 · 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{UDHKXQWRZOUMKMXVXKUH7CFQV2}

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	2026-05-18T04:35:15.056538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0ceabc2d1cba8c532f5baa87f88b0aeb2991d13cb040568231d6c06a8f99a33

Aliases

arxiv: 0902.4799 · arxiv_version: 0902.4799v1 · doi: 10.48550/arxiv.0902.4799 · pith_short_12: UDHKXQWRZOUM · pith_short_16: UDHKXQWRZOUMKMXV · pith_short_8: UDHKXQWR

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/UDHKXQWRZOUMKMXVXKUH7CFQV2 \
  | 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: a0ceabc2d1cba8c532f5baa87f88b0aeb2991d13cb040568231d6c06a8f99a33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "026b3ca22aecce41b420e6d22252ea17c9f147cdbcf53d89bdef0f2ab1d35156",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-02-27T11:07:47Z",
    "title_canon_sha256": "9443e55cde13e2984f64df18ad086efa38908544a69307558dab7de867d2cf1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4799",
    "kind": "arxiv",
    "version": 1
  }
}