Thread - Nostr Hypermedia

René Aaron reneaaron@getalby.com 7 months ago

🔬 Spark Lightning Address Doxxer: a simple tool to decode Spark addresses from any Lightning address or invoice.

Does somebody understand why WoS addresses seem to encode the spark pubkey as a routehint, but other providers such as blitz wallet do not? h/t @benthecarman

Replies (15)

bumi michael@getalby.com 7 months ago

who is using the new WoS to zap? View quoted note →

idsera idsera@blitzwalletapp.com 7 months ago

cc @Wallet of Satoshi

The Daniel 🖖 daniel@ghostr.org 7 months ago

I asked @Roy about this and he said that @Breez ⚡️ SDK also doesn’t expose the Spark public key. So there doesn’t seem to be any reason for it.

Ronin ronin@nostrplebs.com 7 months ago

I also don't expose it on my spark wallet, could it be so that other WoS users can see that it's Spark to Spark and use Spark tx instead?

René Aaron reneaaron@getalby.com 7 months ago

Interesting. Mabye we can get an answer from @Wallet of Satoshi ?

shaun 7 months ago

What's the impact of exposing the spark address? Is it like a reused on chain address so you can see all transactions or something?

Ronin ronin@nostrplebs.com 7 months ago

yes. there is an explorer :

Sparkscan

Explore Spark balances, tokens, and transactions.

TheBitcoinBattery TheBitcoinBattery@primal.net 7 months ago

Wow. Just tested with my @Wallet of Satoshi readable receiving address and it was able to extract my full transaction history. Testing the invoices and/or readable receiving addresses from @AQUA Wallet and @strike both did not reveal that data. Until this changes I will stop using Wallet of Satoshi. It's a shame, I really like the app.

René Aaron reneaaron@getalby.com 7 months ago

This doesn't just work for any lightning address, only ones that are using spark internally. (and also seemingly not all of them, no idea why yet)

benthecarman _@benthecarman.com 7 months ago

It's a config option when creating an invoice, WoS could turn it off if they wanted to

René Aaron reneaaron@getalby.com 7 months ago

Are there any non-obvious reasons not to turn it off?

benthecarman _@benthecarman.com 7 months ago

Saves on fees for spark to spark transfers

René Aaron reneaaron@getalby.com 7 months ago

Because they can directly settle internally between WoS users without touching lightning at all?

benthecarman _@benthecarman.com 7 months ago

Yeah

René Aaron reneaaron@getalby.com 7 months ago

Okay, cool. Thanks for jumping in and explaining things, makes sense now. 🙏