Pith Number

pith:CK2I5YIH

pith:2009:CK2I5YIHYOQ35DRUAUBRICN3RL

not attested not anchored not stored refs pending

Catalogue of Spacetimes

Frank Grave, Thomas Mueller

arxiv:0904.4184 v3 · 2009-04-27 · 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{CK2I5YIHYOQ35DRUAUBRICN3RL}

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.

Cited by

4 papers in Pith

Spectrum of pure $R^2$ gravity: full Hamiltonian analysis

Gravitational lensing time delay beyond the Shapiro/geometry split

Evaporation of Primordial Black Holes in a Thermal Universe: A Thermofield Dynamics Approach

A short course in general relativity

Receipt and verification

First computed	2026-05-18T04:36:09.467385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12b48ee107c3a1be8e3405031409bb8ac2a3e63c462af2f5505922489892b57a

Aliases

arxiv: 0904.4184 · arxiv_version: 0904.4184v3 · doi: 10.48550/arxiv.0904.4184 · pith_short_12: CK2I5YIHYOQ3 · pith_short_16: CK2I5YIHYOQ35DRU · pith_short_8: CK2I5YIH

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/CK2I5YIHYOQ35DRUAUBRICN3RL \
  | 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: 12b48ee107c3a1be8e3405031409bb8ac2a3e63c462af2f5505922489892b57a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0da7faec33a4971d7bae4a81671bff1487592b3e00954171ea5d00ba7c097fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-04-27T15:40:14Z",
    "title_canon_sha256": "318c51be34e284f880abf532202f52f0616a87d42e6d3c8c6a37cdaf5fce114d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4184",
    "kind": "arxiv",
    "version": 3
  }
}