blockchain: API for initial block with utxo set #263
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oleganza
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Apr 15, 2019
This removes nonces from the design. This dramatically simplifies blockchain state and validation rules: every tx must spend an input to be unique. Initial anchoring can be provided in a number of ways: pegged assets from a parent chain, and/or minted synthetic nonce-units at each block, etc. See #230 and #249 for details. To bootstrap anchoring, the initial block can start with an initial UTXO set (this API is necessary to have until we have minteable nonce-units (if at all), and even then it may be useful in its own right). UTXO set commitment is changed to a normal merkle tree (instead of radix/patricia trie), in order to support utreexo (see #258). The state machine spec is still assuming presence of the entire set, this will be updated later. Closes #262. Closes #263.
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Update the spec and the implementation with API to make an initial block with arbitrary UTXO set (array of
Outputobjects). See also #249 and #262.This can be used together with (or instead of) the #249's proposal to mint 0-flavor nonce-values per block. Or that proposal may never be needed.
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