On Tue, Jul 23, 2013 at 10:30:13AM +0100, Andy Parkins wrote: > One additional URL makes this pretty much perfect: > > GET /rest/block-with-tx/TX-HASH > > Construction of the transaction-hash-to-block database is something the full > client's have to do anyway, so this query is no harder than the others for > them to supply; but suddenly makes it possible for an SPV client to trace the > providence of any transaction without needing to maintain the entire chain.
On Tue, Jul 23, 2013 at 10:27:19AM +0200, Andreas Schildbach wrote: > On 07/22/2013 09:42 PM, Jeff Garzik wrote: > > > The general goal of the HTTP REST interface is to access > > unauthenticated, public blockchain information. There is no plan to > > add wallet interfacing/manipulation via this API. > > Is it planned to expose the UXTO set of a given address? That would be > useful for SPV wallets to be able to swipe a previously unknown private > key (e.g. paper wallet). The REST API has nothing to do with SPV clients; it's similar to the RPC interface and won't be exposed to the network as a whole. Increasing the resource usage by SPV clients on full nodes is undesirable; we have a lot of work to do regarding DoS attacks. John Dillon's comments here on using micro-transactions to compensate full-nodes for maintaining expensive blockchain indexes are worth reading: https://github.com/bitcoin/bitcoin/pull/2802#issuecomment-20232958 In any case UTXO data currently requires you to have full trust in whomever is providing you with it, and that situation will continue until UTXO commitments are implemented - if they are implemented. -- 'peter'[:-1]@petertodd.org 000000000000007bea8b46717ec4acb05830bcb6222497366dd72b02ddc80569
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