feat: Rebrand Polkadot/Substrate references to PezkuwiChain

This commit systematically rebrands various references from Parity Technologies'
Polkadot/Substrate ecosystem to PezkuwiChain within the kurdistan-sdk.

Key changes include:
- Updated external repository URLs (zombienet-sdk, parity-db, parity-scale-codec, wasm-instrument) to point to pezkuwichain forks.
- Modified internal documentation and code comments to reflect PezkuwiChain naming and structure.
- Replaced direct references to  with  or specific paths within the  for XCM, Pezkuwi, and other modules.
- Cleaned up deprecated  issue and PR references in various  and  files, particularly in  and  modules.
- Adjusted image and logo URLs in documentation to point to PezkuwiChain assets.
- Removed or rephrased comments related to external Polkadot/Substrate PRs and issues.

This is a significant step towards fully customizing the SDK for the PezkuwiChain ecosystem.

bizinikiwi/client/statement-store/Cargo.toml

@@ -0,0 +1,51 @@
+[package]
+name = "pezsc-statement-store"
+version = "10.0.0"
+authors.workspace = true
+edition.workspace = true
+license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
+homepage.workspace = true
+repository.workspace = true
+description = "Bizinikiwi statement store."
+readme = "README.md"
+
+[lints]
+workspace = true
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+
+[dependencies]
+log = { workspace = true, default-features = true }
+parity-db = { workspace = true }
+parking_lot = { workspace = true, default-features = true }
+prometheus-endpoint = { workspace = true, default-features = true }
+pezsc-client-api = { workspace = true, default-features = true }
+pezsc-keystore = { workspace = true, default-features = true }
+pezsc-network-statement = { workspace = true, default-features = true }
+pezsp-api = { workspace = true, default-features = true }
+pezsp-blockchain = { workspace = true, default-features = true }
+pezsp-core = { workspace = true, default-features = true }
+pezsp-runtime = { workspace = true, default-features = true }
+pezsp-statement-store = { workspace = true, default-features = true }
+tokio = { features = ["time"], workspace = true, default-features = true }
+
+[dev-dependencies]
+criterion = { workspace = true, default-features = true }
+pezsp-tracing = { workspace = true }
+tempfile = { workspace = true }
+
+[[bench]]
+name = "statement_store"
+harness = false
+required-features = []
+
+[features]
+runtime-benchmarks = [
+	"pezsc-client-api/runtime-benchmarks",
+	"pezsc-network-statement/runtime-benchmarks",
+	"pezsp-api/runtime-benchmarks",
+	"pezsp-blockchain/runtime-benchmarks",
+	"pezsp-runtime/runtime-benchmarks",
+	"pezsp-statement-store/runtime-benchmarks",
+]

bizinikiwi/client/statement-store/README.md

@@ -0,0 +1,4 @@
+Bizinikiwi statement store implementation.
+
+License: GPL-3.0-or-later WITH Classpath-exception-2.0
+

bizinikiwi/client/statement-store/benches/statement_store.rs

@@ -0,0 +1,411 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+use criterion::{criterion_group, criterion_main, Criterion};
+use pezsc_statement_store::Store;
+use pezsp_core::Pair;
+use pezsp_statement_store::{
+	runtime_api::{InvalidStatement, ValidStatement, ValidateStatement},
+	DecryptionKey, Proof, SignatureVerificationResult, Statement, StatementSource, StatementStore,
+	SubmitResult, Topic,
+};
+use std::sync::Arc;
+
+type Extrinsic = pezsp_runtime::OpaqueExtrinsic;
+type Hash = pezsp_core::H256;
+type Hashing = pezsp_runtime::traits::BlakeTwo256;
+type BlockNumber = u64;
+type Header = pezsp_runtime::generic::Header<BlockNumber, Hashing>;
+type Block = pezsp_runtime::generic::Block<Header, Extrinsic>;
+
+const CORRECT_BLOCK_HASH: [u8; 32] = [1u8; 32];
+const STATEMENT_DATA_SIZE: usize = 256;
+const INITIAL_STATEMENTS: usize = 1_000;
+const NUM_THREADS: usize = 64;
+const OPS_PER_THREAD: usize = 10;
+const TOTAL_OPS: usize = NUM_THREADS * OPS_PER_THREAD;
+
+#[derive(Clone)]
+struct TestClient;
+
+struct RuntimeApi {
+	_inner: TestClient,
+}
+
+impl pezsp_api::ProvideRuntimeApi<Block> for TestClient {
+	type Api = RuntimeApi;
+	fn runtime_api(&self) -> pezsp_api::ApiRef<Self::Api> {
+		RuntimeApi { _inner: self.clone() }.into()
+	}
+}
+
+pezsp_api::mock_impl_runtime_apis! {
+	impl ValidateStatement<Block> for RuntimeApi {
+		fn validate_statement(
+			_source: StatementSource,
+			statement: Statement,
+		) -> std::result::Result<ValidStatement, InvalidStatement> {
+			match statement.verify_signature() {
+				SignatureVerificationResult::Valid(_) =>
+					Ok(ValidStatement { max_count: 100_000, max_size: 1_000_000 }),
+				SignatureVerificationResult::Invalid => Err(InvalidStatement::BadProof),
+				SignatureVerificationResult::NoSignature => {
+					if let Some(Proof::OnChain { block_hash, .. }) = statement.proof() {
+						if block_hash == &CORRECT_BLOCK_HASH {
+							Ok(ValidStatement { max_count: 100_000, max_size: 1_000_000 })
+						} else {
+							Err(InvalidStatement::BadProof)
+						}
+					} else {
+						Err(InvalidStatement::BadProof)
+					}
+				},
+			}
+		}
+	}
+}
+
+impl pezsp_blockchain::HeaderBackend<Block> for TestClient {
+	fn header(&self, _hash: Hash) -> pezsp_blockchain::Result<Option<Header>> {
+		unimplemented!()
+	}
+	fn info(&self) -> pezsp_blockchain::Info<Block> {
+		pezsp_blockchain::Info {
+			best_hash: CORRECT_BLOCK_HASH.into(),
+			best_number: 0,
+			genesis_hash: Default::default(),
+			finalized_hash: CORRECT_BLOCK_HASH.into(),
+			finalized_number: 1,
+			finalized_state: None,
+			number_leaves: 0,
+			block_gap: None,
+		}
+	}
+	fn status(&self, _hash: Hash) -> pezsp_blockchain::Result<pezsp_blockchain::BlockStatus> {
+		unimplemented!()
+	}
+	fn number(&self, _hash: Hash) -> pezsp_blockchain::Result<Option<BlockNumber>> {
+		unimplemented!()
+	}
+	fn hash(&self, _number: BlockNumber) -> pezsp_blockchain::Result<Option<Hash>> {
+		unimplemented!()
+	}
+}
+
+fn topic(data: u64) -> Topic {
+	let mut topic: Topic = Default::default();
+	topic[0..8].copy_from_slice(&data.to_le_bytes());
+	topic
+}
+
+fn dec_key(data: u64) -> DecryptionKey {
+	let mut dec_key: DecryptionKey = Default::default();
+	dec_key[0..8].copy_from_slice(&data.to_le_bytes());
+	dec_key
+}
+
+fn create_signed_statement(
+	id: u64,
+	topics: &[Topic],
+	dec_key: Option<DecryptionKey>,
+	keypair: &pezsp_core::ed25519::Pair,
+) -> Statement {
+	let mut statement = Statement::new();
+	let mut data = vec![0u8; STATEMENT_DATA_SIZE];
+	data[0..8].copy_from_slice(&id.to_le_bytes());
+	statement.set_plain_data(data);
+
+	for (i, topic) in topics.iter().enumerate() {
+		statement.set_topic(i, *topic);
+	}
+
+	if let Some(key) = dec_key {
+		statement.set_decryption_key(key);
+	}
+
+	statement.sign_ed25519_private(keypair);
+	statement
+}
+
+fn setup_store(keypair: &pezsp_core::ed25519::Pair) -> (Store, tempfile::TempDir) {
+	let temp_dir = tempfile::Builder::new().tempdir().expect("Error creating test dir");
+	let client = Arc::new(TestClient);
+	let mut path: std::path::PathBuf = temp_dir.path().into();
+	path.push("db");
+	let keystore = Arc::new(pezsc_keystore::LocalKeystore::in_memory());
+	let store = Store::new(&path, Default::default(), client, keystore, None).unwrap();
+
+	for i in 0..INITIAL_STATEMENTS {
+		let topics = if i % 10 == 0 { vec![topic(0), topic(1)] } else { vec![] };
+		let dec_key = if i % 5 == 0 { Some(dec_key(42)) } else { None };
+		let statement = create_signed_statement(i as u64, &topics, dec_key, &keypair);
+		store.submit(statement, StatementSource::Local);
+	}
+
+	(store, temp_dir)
+}
+
+fn bench_submit(c: &mut Criterion) {
+	let keypair = pezsp_core::ed25519::Pair::from_string("//Bench", None).unwrap();
+	let statements: Vec<_> = (INITIAL_STATEMENTS..INITIAL_STATEMENTS + TOTAL_OPS)
+		.map(|i| create_signed_statement(i as u64, &[], None, &keypair))
+		.collect();
+
+	c.bench_function("submit", |b| {
+		b.iter_batched(
+			|| {
+				let (store, _temp) = setup_store(&keypair);
+				(Arc::new(store), _temp)
+			},
+			|(store, _temp)| {
+				std::thread::scope(|s| {
+					for thread_id in 0..NUM_THREADS {
+						let store = store.clone();
+						let start = thread_id * OPS_PER_THREAD;
+						let end = start + OPS_PER_THREAD;
+						let thread_statements = statements[start..end].to_vec();
+						s.spawn(move || {
+							for statement in thread_statements {
+								let result = store.submit(statement, StatementSource::Local);
+								assert!(matches!(result, SubmitResult::New(_)));
+							}
+						});
+					}
+				});
+			},
+			criterion::BatchSize::LargeInput,
+		)
+	});
+}
+
+fn bench_remove(c: &mut Criterion) {
+	let keypair = pezsp_core::ed25519::Pair::from_string("//Bench", None).unwrap();
+
+	c.bench_function("remove", |b| {
+		b.iter_batched(
+			|| {
+				let (store, _temp) = setup_store(&keypair);
+				let hashes: Vec<_> = store
+					.statements()
+					.unwrap()
+					.into_iter()
+					.take(TOTAL_OPS)
+					.map(|(hash, _)| hash)
+					.collect();
+				(Arc::new(store), hashes, _temp)
+			},
+			|(store, hashes, _temp)| {
+				std::thread::scope(|s| {
+					for thread_id in 0..NUM_THREADS {
+						let store = store.clone();
+						let start = thread_id * OPS_PER_THREAD;
+						let end = start + OPS_PER_THREAD;
+						let thread_hashes = hashes[start..end].to_vec();
+						s.spawn(move || {
+							for hash in thread_hashes {
+								let _ = store.remove(&hash);
+							}
+						});
+					}
+				});
+			},
+			criterion::BatchSize::LargeInput,
+		)
+	});
+}
+
+fn bench_statement_lookup(c: &mut Criterion) {
+	let keypair = pezsp_core::ed25519::Pair::from_string("//Bench", None).unwrap();
+
+	c.bench_function("statement_lookup", |b| {
+		b.iter_batched(
+			|| {
+				let (store, _temp) = setup_store(&keypair);
+				let hashes: Vec<_> = store
+					.statements()
+					.unwrap()
+					.into_iter()
+					.take(TOTAL_OPS)
+					.map(|(hash, _)| hash)
+					.collect();
+				(Arc::new(store), hashes, _temp)
+			},
+			|(store, hashes, _temp)| {
+				std::thread::scope(|s| {
+					for thread_id in 0..NUM_THREADS {
+						let store = store.clone();
+						let start = thread_id * OPS_PER_THREAD;
+						let end = start + OPS_PER_THREAD;
+						let thread_hashes = hashes[start..end].to_vec();
+						s.spawn(move || {
+							for hash in thread_hashes {
+								let _ = store.statement(&hash);
+							}
+						});
+					}
+				});
+			},
+			criterion::BatchSize::LargeInput,
+		)
+	});
+}
+
+fn bench_statements_all(c: &mut Criterion) {
+	let keypair = pezsp_core::ed25519::Pair::from_string("//Bench", None).unwrap();
+	let (store, _temp) = setup_store(&keypair);
+	let store = Arc::new(store);
+
+	c.bench_function("statements_all", |b| {
+		b.iter(|| {
+			std::thread::scope(|s| {
+				for _ in 0..NUM_THREADS {
+					let store = store.clone();
+					s.spawn(move || {
+						for _ in 0..OPS_PER_THREAD {
+							let _ = store.statements();
+						}
+					});
+				}
+			});
+		})
+	});
+}
+
+fn bench_broadcasts(c: &mut Criterion) {
+	let keypair = pezsp_core::ed25519::Pair::from_string("//Bench", None).unwrap();
+	let (store, _temp) = setup_store(&keypair);
+	let store = Arc::new(store);
+	let topics = vec![topic(0), topic(1)];
+
+	c.bench_function("broadcasts", |b| {
+		b.iter(|| {
+			std::thread::scope(|s| {
+				for _ in 0..NUM_THREADS {
+					let store = store.clone();
+					let topics = topics.clone();
+					s.spawn(move || {
+						for _ in 0..OPS_PER_THREAD {
+							let _ = store.broadcasts(&topics);
+						}
+					});
+				}
+			});
+		})
+	});
+}
+
+fn bench_posted(c: &mut Criterion) {
+	let keypair = pezsp_core::ed25519::Pair::from_string("//Bench", None).unwrap();
+	let (store, _temp) = setup_store(&keypair);
+	let store = Arc::new(store);
+	let key = dec_key(42);
+
+	c.bench_function("posted", |b| {
+		b.iter(|| {
+			std::thread::scope(|s| {
+				for _ in 0..NUM_THREADS {
+					let store = store.clone();
+					s.spawn(move || {
+						for _ in 0..OPS_PER_THREAD {
+							let _ = store.posted(&[], key);
+						}
+					});
+				}
+			});
+		})
+	});
+}
+
+fn bench_maintain(c: &mut Criterion) {
+	let keypair = pezsp_core::ed25519::Pair::from_string("//Bench", None).unwrap();
+
+	c.bench_function("maintain", |b| {
+		b.iter_batched(
+			|| {
+				let (store, _temp) = setup_store(&keypair);
+				// Mark statements for expiration by removing them
+				let hashes: Vec<_> = store
+					.statements()
+					.unwrap()
+					.into_iter()
+					.take(TOTAL_OPS)
+					.map(|(hash, _)| hash)
+					.collect();
+				for hash in hashes {
+					let _ = store.remove(&hash);
+				}
+				(store, _temp)
+			},
+			|(store, _temp)| {
+				store.maintain();
+			},
+			criterion::BatchSize::LargeInput,
+		)
+	});
+}
+
+fn bench_mixed_workload(c: &mut Criterion) {
+	let keypair = pezsp_core::ed25519::Pair::from_string("//Bench", None).unwrap();
+	let statements: Vec<_> = (INITIAL_STATEMENTS..INITIAL_STATEMENTS + TOTAL_OPS)
+		.map(|i| create_signed_statement(i as u64, &[topic(0), topic(1)], None, &keypair))
+		.collect();
+
+	c.bench_function("mixed_workload", |b| {
+		b.iter_batched(
+			|| {
+				let (store, _temp) = setup_store(&keypair);
+				(Arc::new(store), _temp)
+			},
+			|(store, _temp)| {
+				std::thread::scope(|s| {
+					for thread_id in 0..NUM_THREADS {
+						let store = store.clone();
+						let start = thread_id * OPS_PER_THREAD;
+						let end = start + OPS_PER_THREAD;
+						let thread_statements = statements[start..end].to_vec();
+						let topics = vec![topic(0), topic(1)];
+						s.spawn(move || {
+							for statement in thread_statements {
+								// Submit a statement
+								let result = store.submit(statement, StatementSource::Local);
+								assert!(matches!(result, SubmitResult::New(_)));
+
+								// Query broadcasts
+								let _ = store.broadcasts(&topics);
+							}
+						});
+					}
+				});
+			},
+			criterion::BatchSize::LargeInput,
+		)
+	});
+}
+
+criterion_group!(
+	benches,
+	bench_submit,
+	bench_remove,
+	bench_statement_lookup,
+	bench_statements_all,
+	bench_broadcasts,
+	bench_posted,
+	bench_maintain,
+	bench_mixed_workload
+);
+criterion_main!(benches);

bizinikiwi/client/statement-store/src/metrics.rs

@@ -0,0 +1,79 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+//! Statement store Prometheus metrics.
+
+use std::sync::Arc;
+
+use prometheus_endpoint::{register, Counter, PrometheusError, Registry, U64};
+
+#[derive(Clone, Default)]
+pub struct MetricsLink(Arc<Option<Metrics>>);
+
+impl MetricsLink {
+	pub fn new(registry: Option<&Registry>) -> Self {
+		Self(Arc::new(registry.and_then(|registry| {
+			Metrics::register(registry)
+				.map_err(|err| {
+					log::warn!("Failed to register prometheus metrics: {}", err);
+				})
+				.ok()
+		})))
+	}
+
+	pub fn report(&self, do_this: impl FnOnce(&Metrics)) {
+		if let Some(metrics) = self.0.as_ref() {
+			do_this(metrics);
+		}
+	}
+}
+
+/// Statement store Prometheus metrics.
+pub struct Metrics {
+	pub submitted_statements: Counter<U64>,
+	pub validations_invalid: Counter<U64>,
+	pub statements_pruned: Counter<U64>,
+}
+
+impl Metrics {
+	pub fn register(registry: &Registry) -> Result<Self, PrometheusError> {
+		Ok(Self {
+			submitted_statements: register(
+				Counter::new(
+					"bizinikiwi_sub_statement_store_submitted_statements",
+					"Total number of statements submitted",
+				)?,
+				registry,
+			)?,
+			validations_invalid: register(
+				Counter::new(
+					"bizinikiwi_sub_statement_store_validations_invalid",
+					"Total number of statements that were removed from the pool as invalid",
+				)?,
+				registry,
+			)?,
+			statements_pruned: register(
+				Counter::new(
+					"bizinikiwi_sub_statement_store_block_statements",
+					"Total number of statements that was requested to be pruned by block events",
+				)?,
+				registry,
+			)?,
+		})
+	}
+}