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Simplified Payment Verification (SPV) #239

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bpalaggi opened this issue Aug 23, 2019 · 2 comments
Closed

Simplified Payment Verification (SPV) #239

bpalaggi opened this issue Aug 23, 2019 · 2 comments
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C. Simplified Payment Verification (SPV) type-feature

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@bpalaggi
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@bpalaggi bpalaggi commented Aug 23, 2019

As a user, I want to be able to verify payment from a "simple device", such as a phone, without relying on having to download the full blockchain state and validate everything.

This will be addressed by making a block verifiable, then providing a Merkle Path within this block.

@Geod24 Geod24 added this to the 5. CoinNet release milestone Sep 4, 2019
@Geod24 Geod24 added the type-feature label Sep 4, 2019
@Geod24 Geod24 added the C.Blockchain label Jul 5, 2020
@Geod24
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@Geod24 Geod24 commented Dec 28, 2020

CC @MichaelKim20 @TrustHenry : Since we have both Merkle path verification and block signature, I think all that is needed is the implementation on your side. When do you think you can get to it ?

@bpalaggi bpalaggi added SPV and removed C.Blockchain labels Feb 9, 2021
@kchulj kchulj added C. Simplified Payment Verification (SPV) and removed SPV labels Feb 15, 2021
@Geod24
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@Geod24 Geod24 commented Feb 17, 2021

So questions that this bring:

  • Does Stoa have the required APIs for us ? Currently we have the API in Agora, but we want clients to interact with Stoa.
  • Does Stoa expose a way to only get the block header ?
  • What policy do we apply in the client for block header retention ?
  • How much consensus rules can we and should we check in the client (most important question) ?
  • Provided an implementation that does periodic polling on a hash, how much story point would an implementation be ?

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