Subject: Re: [bitcoin-dev] Proposal: Extended serialization format for BIP-32 wallets

From: Pavol Rusnak <[email-masked]>
Date: Thu, 7 Sep 2017 18:37:19 +0200

On 07/09/17 18:30, Kabuto Samourai wrote:
> Why not make this block height, rather than a timestamp?

Blockheight depends on the chain. XPUB is not tied to particular
chain/coin.

Also there are already cryptocurrencies that do not use blockchain, but
directed acyclic graph (DAG) for storing transactions. So it would not
be obvious what number to use as a blockheight.

OTOH all blockchains contain timestamps in their blocks, so we can use that.

-- 
Best Regards / S pozdravom,

Pavol "stick" Rusnak
CTO, SatoshiLabs