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grau (OP)
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November 02, 2013, 05:21:48 PM
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What do you think of a protocol extension for SPV style chain download of the subset relevant for one's wallet?

A node would query SPV style proofs for transaction inputs relevant to it until proofs reach coin bases or verified by previous proofs.
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Mike Hearn
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November 02, 2013, 05:25:32 PM
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Wallets don't need to know the dependencies of their own transactions, so I don't see why this would be useful.
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November 02, 2013, 05:32:47 PM
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It would be useful for applications that care of the origin e.g. colored coins.
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November 02, 2013, 10:07:25 PM
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Applications that care about origin, colored coins in particular, are already very SPV compatible; you're just looking at it from the wrong direction. What they could do is start with the genesis transactions and scan the chain forwards, rather than starting with a alleged colored coin and scanning backwards.
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