mirror of
https://github.com/mimblewimble/grin.git
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53 lines
1.5 KiB
Rust
53 lines
1.5 KiB
Rust
// Copyright 2016 The Grin Developers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Definition of the genesis block. Placeholder for now.
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use time;
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use core;
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use consensus::{DEFAULT_SIZESHIFT, MAX_TARGET};
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use tiny_keccak::Keccak;
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// Genesis block definition. It has no rewards, no inputs, no outputs, no
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// fees and a height of zero.
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pub fn genesis() -> core::Block {
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let mut sha3 = Keccak::new_sha3_256();
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let mut empty_h = [0; 32];
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sha3.update(&[]);
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sha3.finalize(&mut empty_h);
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core::Block {
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header: core::BlockHeader {
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height: 0,
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previous: core::hash::Hash([0xff; 32]),
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timestamp: time::Tm {
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tm_year: 1997-1900,
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tm_mon: 7,
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tm_mday: 4,
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..time::empty_tm()
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},
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cuckoo_len: DEFAULT_SIZESHIFT,
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target: MAX_TARGET,
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utxo_merkle: core::hash::Hash::from_vec(empty_h.to_vec()),
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tx_merkle: core::hash::Hash::from_vec(empty_h.to_vec()),
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nonce: 0,
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pow: core::Proof::zero(), // TODO get actual PoW solution
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},
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inputs: vec![],
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outputs: vec![],
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proofs: vec![],
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}
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}
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