Pith Number

pith:VKD2IABN

pith:2014:VKD2IABNF7FJZS3DMNFCIXS2OP

not attested not anchored not stored refs pending

The charged McVittie spacetime

Andres F. Zambrano Moreno, Angus Prain, Valerio Faraoni

arxiv:1404.3929 v1 · 2014-04-15 · 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{VKD2IABNF7FJZS3DMNFCIXS2OP}

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	2026-05-18T01:43:34.451926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa87a4002d2fca9ccb63634a245e5a73cc9fd8844225fce0942c240b43d5b8d5

Aliases

arxiv: 1404.3929 · arxiv_version: 1404.3929v1 · doi: 10.48550/arxiv.1404.3929 · pith_short_12: VKD2IABNF7FJ · pith_short_16: VKD2IABNF7FJZS3D · pith_short_8: VKD2IABN

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/VKD2IABNF7FJZS3DMNFCIXS2OP \
  | 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: aa87a4002d2fca9ccb63634a245e5a73cc9fd8844225fce0942c240b43d5b8d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9b5e4885fa217e6c106e347655eba567b6815375f219e717be6b4adb9273398",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-04-15T14:35:42Z",
    "title_canon_sha256": "91913a197e03ea2e8df199741f8c12e35db23ba0142a030ac523eb27ade00828"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3929",
    "kind": "arxiv",
    "version": 1
  }
}