kcalvinalvin

With Utreexo, when you download a wallet app, it’ll have the utreexo roots somewhere around the tip. The wallet will start downloading blocks from there on.
One thing I considered that might be dangerous is that app autoupdates will update the roots every single time. I don’t think this changes the trust-assumption but was nonetheless somewhat disturbed by this.
Maybe it’s nothing but dunno, we’ll see.

2025-04-29 14:13:14 UTC

I sorta realized I’m really bad at communicating my work.
Gonna try to post here with my random thoughts

2025-03-13 08:09:27 UTC

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Lol imagine carrying around that

2025-03-13 05:03:53 UTC

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I use an app called blink (blink.sh)

2025-03-13 04:56:55 UTC

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It’s pretty smol https://image.nostr.build/0cc5ab133fbfc6037fa5ddd9571fe2a24c0a2af17eb679f0dd90457c838bf185.jpg

2025-03-13 04:52:47 UTC

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Ipad only gang
#nevent1q…2rlc
https://m.primal.net/PdzO.jpg

2025-03-11 04:32:16 UTC

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No different from the CCP’s national security law. smh

2024-02-18 04:32:08 UTC

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1: Utreexo는 spv노드가 아니고 모든 블록과 트랜잭션을 검증하는 풀노드 입니다. UTXO 셋을 일종의 머클트리로 변형시키는것 이외에 일반 풀노드랑 같습니다.
2: Utreexo 노드 자체가 풀노드이기 때문에 해당 데이터를 가지고 있을 수 있습니다

2023-12-15 16:16:34 UTC

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Yeah something like this. Thanks!
I’ll have to play around with it

2023-12-11 16:04:29 UTC

Is there a group thing for nostr that let’s you replace irc

2023-11-09 11:59:27 UTC

It’s true #note1tzp…6tfv

2023-11-07 00:51:36 UTC

It’s that time of the year again when weird people decide to change their time by an hour

2023-11-01 13:17:14 UTC

Is wifi 6e a scam? Figuring out which router I should get

2023-10-31 15:06:41 UTC

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비트코인 네트워크 사용에 있어서 옳고 그름은 개개인의 판단이겠죠? 내가 싫어하는 사람이 쓰지 않았으면 하지만 이걸 막지 못하는것도 비트코인의 장점중 하나입니다.
내가 싫어하는 방법으로 다른 사람이 사용하는것도 마찬가지입니다

2023-10-31 04:08:24 UTC

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내가 마음에 드는 방식대로 비트코인을 사용하지 않는다고 해서 공격이 되진 않습니다.
추가적으로 데이터를 올리는것은 막을 수 없는 일이고 op_return을 위의 방식대로 활용하는것이 바람직 합니다.

2023-10-31 04:04:47 UTC

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op_return 스크립트에 80바이트 기록이 표준으로 받아드려집니다. 이를 넘는 스크립트들은 채굴자에게 직접적으로 보내야 합니다.
하나의 트랜잭션에 여러 op_return 아웃풋이 있을 수 있고 하나의 블록에 이러한 트랜잭션이 여러개 있을 수 있습니다.

2023-10-30 05:58:58 UTC

5,000 krw wrench https://image.nostr.build/2a88bceede3a6edcab4bd7855b3c2e1bfe3c9ebe3fbf072e05a61bfede9f4b4f.jpg

2023-10-30 05:41:14 UTC

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비트코인이 디스크에 sequential하게 저장되는 80바이트 메세지 올린다고 망할 시스템이면 처음부터 가치있는 네트워크인지 생각할 필요가 있을것 같습니다.

2023-10-30 05:35:01 UTC

https://msgonbtc.vercel.app/message/c0d2b5090a365ac618991dd80e304b4e6693479e58a6412c0d00311d82491c41 #note1fcc…m8y8

2023-10-21 09:02:57 UTC

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esss horse?

2023-10-21 08:07:00 UTC

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Freebsd is the problem

2023-10-19 05:13:24 UTC

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I’m assuming there isn’t a easy way to verify messages delivered out of band yet?
I can’t ask the other party to write up a python script to check

2023-10-19 04:24:08 UTC

2dd7853ba2163b914992b40a1758c5b09dc360f18a656683c729d25ead16347b

2023-10-19 04:23:57 UTC

Alright I guess the hack is to just post a shasum of the message you want to commit to on nostr for now #note192u…7xc0

2023-10-19 04:07:36 UTC

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Is there a way to export it? Like not broadcast it to relays but have it text based where I can send it in an email.
Basically was thinking if this can replace pgp.

2023-10-19 04:04:43 UTC

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I’m thinking something like pgp but not insane

2023-10-19 04:03:45 UTC

Can you sign a message with your nostr priv key?
Would be nice to have something super user friendly for signing/verifying.

2023-10-17 06:23:12 UTC

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Even for Bitcoin it’s critical because of electrum

2023-10-16 12:04:02 UTC

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Ah ok. So they’re always mentioned as sighash types and the wiki might be of interest.
https://en.bitcoin.it/wiki/Contract#SIGHASH_flags
I sometimes see people use other flags for customs protocols on top of bitcoin

2023-10-16 05:50:58 UTC

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I feel that latest phones aren’t really worth it

2023-10-14 14:17:13 UTC

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what’d you mean by hashtype?

2023-10-08 03:27:40 UTC

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They’ve been ban happy lately. idk the reason

2023-10-08 03:26:44 UTC

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No there was. The segwit block size increase was a compromise