zdavatz

Joined Apr 16, 2018

https://twitter.com/zdavatz

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1889d
8. Simplified Payment Verification

It is possible to verify payments without running a full network node. A user only needs to keep a copy of the block headers of the longest proof-of-work chain, which he can get by querying network nodes until he's convinced he has the longest chain, and obtain the Merkle branch linking the transaction to the block it's timestamped in. He can't check the transaction for himself, but by linking it to a place in the chain, he can see that a network node has accepted it, and blocks added after it further confirm the network has accepted it.

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replied 1976d
Memo is designed to work with lite wallets. It doesn't exist yet but it shouldn't be difficult to create a desktop version of Memo that isn't too heavy.
replied 2038d
What is more important, that their is a model for storing data, that is _not_ advertisement driven and that does not vanish as long as you pay for it.
replied 2042d
chalbersma
Still a long list of features to add: mobile app, user tagging, hashtags, better onboarding, direct sending, native image/video support, private messages, and lots more.
replied 2040d
Lets call it "BlockStorage" where you pay for the storage of large blocks of data in BCH. ;)
replied 2043d
It's a good question and one of the drawbacks of IPFS. Yes, perhaps a good system could be added for using BCH to pay for hosting on IPFS.
replied 2044d
The difference being that IPFS can be supported natively - i.e. you could upload files through Memo website / app.
replied 2044d
Storing images and video on-chain is expensive. To support media in a decentralized way it must be stored elsewhere. IPFS would be added to the current options (Imgur, Youtube, etc).
replied 2043d
Question: Who runs the IPFS Servers? How do you then pay for the uploads? Again with BCH?
replied 2043d
Question: Who runs the IPFS Servers? How do you then pay for the uploads? Again with BCH?
replied 2043d
thanks for clarifying!
2044d
“As the son of a Polish holocaust survivor, the images and sounds of this family separation policy [are] heart wrenching.” Tweet by Michael Cohen on June 20, 2018.
replied 2044d
What is the Use-Case for that? How would a user profit from the integration of IPFS into Memo.cash?
replied 2044d
Memo will likely be adding IPFS support. Not sure when though.
replied 2046d
Just great!
replied 2046d
Edit and delete actions can be added to the protocol and supported in the UI. Of course since it's on-chain you will always be able to see the original.
replied 2062d
Like you said, you need enough to pay for the mining fee (~300 sats) and still have change above the dust limit (546 sats). So min is about 850 sats.
replied 2061d
This limit is actually not set by memo but by BCH nodes :( I'm trying to get this limited removed.

UTXOs could potentially be juggled to mitigate, but it would be kinda ugly.
replied 2064d
Yep, memo was designed to be bloom filter compatible so people can build lite clients.
2068d · Bitcoin Cash
Breaking News: 70% of merchants in Cyprus will start accepting Bitcoin Cash payments. BCH will be added to a leading POS system.
2068d
Where is BCH used in #Greece?
replied 2075d
I'm reading the jasonc. The double spend depends on some miners filtering out low fee transactions. Off hand I don't see a need to filter out low fee transactions.
replied 2075d
If you wait for confirmation you are fine. But for 0-conf here's an explanation of how a double spend can be done: https://jasonc.me/blog/bitcoin-bip-133-double-spends-bch
replied 2075d
One reason is by setting a minimum they encourage higher fees and make more. Another is that some fear low-fee transactions can be used for spam. Majority have 1 sat/b minimum.
2077d