Pith Number

pith:R5HC43TB

pith:2011:R5HC43TBDWQ5CPMNCWME3EIOCI

not attested not anchored not stored refs pending

G\"odel's universe and the chronology protection conjecture

P. Pitanga

arxiv:1110.0173 v5 · 2011-10-02 · 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{R5HC43TBDWQ5CPMNCWME3EIOCI}

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	2026-05-18T02:21:35.638272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f4e2e6e611da1d13d8d15984d910e1204ac2db81449ea21f253b48f10890e71

Aliases

arxiv: 1110.0173 · arxiv_version: 1110.0173v5 · doi: 10.48550/arxiv.1110.0173 · pith_short_12: R5HC43TBDWQ5 · pith_short_16: R5HC43TBDWQ5CPMN · pith_short_8: R5HC43TB

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/R5HC43TBDWQ5CPMNCWME3EIOCI \
  | 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: 8f4e2e6e611da1d13d8d15984d910e1204ac2db81449ea21f253b48f10890e71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52cc3daa77ed033c3cbc01b533b1ec0e0ef545f4a425fba48603bcd280fe8fb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-10-02T11:50:02Z",
    "title_canon_sha256": "6d5a6cdb943b63db9b441683572b5a4c134fcd97cb69d61e40054a0de9c1a007"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.0173",
    "kind": "arxiv",
    "version": 5
  }
}