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The band-segmented transmission orthogonal frequency-division multiplexing (BST-OFDM) system proposed for Japan (in the ISDB-T, ISDB-TSB, and ISDB-C broadcasting systems) improves upon COFDM by exploiting the fact that some OFDM carriers may be modulated differently from others within the same multiplex.
Uses a directed acyclic graph instead of a chain per se: Zcash: Oct 28, 2016 [4] ZEC PoW: Yes uses zero-knowledge proofs for privacy Monero: Apr 18, 2014 XMR PoW: No Yes [1] [4] Bitcoin Gold: BTG PoW: Yes (scripts) No [1] Dogecoin: DOGE PoW: No No [1] Hyperledger Fabric ? Linux Foundation: N/A BFT, PoA: Yes Yes Yes Immediate Account-balance R3 ...
The following is a list of notable hard forks splitting bitcoin by date and/or block: Bitcoin Cash: Forked at block 478558, 1 August 2017, for each bitcoin (BTC), an owner got 1 Bitcoin Cash (BCH) Bitcoin Satoshi Vision: Forked at block 556766, 15 November 2018, for each Bitcoin Cash (BCH), an owner got 1 Bitcoin SV (BSV).
The linked blocks form a chain. [3] This iterative process confirms the integrity of the previous block, all the way back to the initial block, which is known as the genesis block (Block 0). [28] [29] To assure the integrity of a block and the data contained in it, the block is usually digitally signed. [30]
Chainlink's decentralized oracle network is an open-source technology infrastructure that allows any blockchain to securely connect to off-chain data and computation resources. The network nodes fetch, validate, and deliver data from multiple sources onto blockchains to execute smart contracts.
The Blockchain-based Service Network (BSN) is a backend architecture in China for developing and managing blockchain-based applications, [1] and is split into Chinese and International uses. [2]
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Stacks, formerly Blockstack, is a layer-2 blockchain that extends the use of Bitcoin to include smart contracts, decentralized finance ("DeFi"), non-fungible tokens (NFTs), and decentralized apps ("DApps"), while still maintaining Bitcoin finality [1].