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1  Local / Anfänger und Hilfe / Re: Wie kauft ein Einsteiger jetzt am besten dezentral Bitcoin? on: November 07, 2022, 09:30:35 PM
MWEB ist ein Fortschritt, wenn die Anwendung einfacher ist als ein Coinjoin. Das Problem mit opt-in confidential transactions ist, dass diese Transaktionen untereinander fungibel sind aber nicht fungibel mit Transaktionen, die nicht confidential sind. Alle Monero sind mit einander fungibel. Alle Bitcoin mit Samurai coinjoin und ggf. alle Litecoin mit MWEB confidential opt-in.
Die Anwendung ist ja einfach, bei Litecoin. Und im Idealfall ist die tx Gebühr damit viel niedriger wenn in einer Boom Phase der Mempool übervoll ist aber in den Extension Blocks ist noch Platz (das geht nur mit Bitcoin). Dann setzt es sich durch, sonst nicht.

Der Knackpunkt bleibt hier, ob sich das am Ende durchsetzt. Wenn 99% aller Transaktionen confidential sind, dann haben wir gewonnen. Wenn nur 1% confidential ist, dann werden diese 1% einfach als "böse" definiert.
Wäre interessant zu erfahren ob schon mal jemand solche bösen Ltc bei Kraken oder Bitcoin.de o.ä. verkauft hat, und ob es Probleme gab.

2  Local / Anfänger und Hilfe / Re: Wie kauft ein Einsteiger jetzt am besten dezentral Bitcoin? on: November 06, 2022, 05:35:35 PM
Man muss auch bedenken dass der "Taint" rückwirkend sichtbar werden kann, z.b. wenn die gekauften Münzen von einem DNM stammen der dann vielleicht Jahre später von Gesetzeshütern dichtgemacht wird. Und jedes Unternehmen kann seine eigene Definition von guten und  schlechten Btc durchsetzen wollen was dann wie willkürliche Schikane von Kunden aussieht. Das einzige was man dagegen machen kann ist auch wieder dezentral zu verkaufen, und natürlich keine UTXOs mischen. Einen Trend zu wirklicher Unterteilung je nach Historie mit unterschiedlichem Preis für gute und schlechte Bitcoins sehe ich nicht.

Lösungsmöglichkeiten für die mangelnde Fungibilität von Bitcoin:
- alle Marktteilnehmer nutzen Coinjoins (ehrenwertes Ziel aber unwahrscheinlich umsetzbar)
- Umstieg auf Monero
MWEB Softfork wie bei Litecoin

3  Local / Deutsch (German) / Re: Bitcoin & die Steuer - FAQ on: July 21, 2022, 07:48:23 PM
Die folgende PDF ist eine neue, offizielle Sammlung an Einzelfragen zur ertragsteuerrechtlichen Behandlung von virtuellen Währungen und
von sonstigen Token in Deutschland:


https://drive.google.com/file/d/11ameWLp9FfXNABc_cZJDI0lA6_VinGKz/view?usp=sharing


Ausstellungdatum: 10. Mai 2022
Ausstellungsort: Bundesministerium der Finanzen, 11016 Berlin


Interessant für private Anwender ist die faktische Gleichsetzung von Kauf, Mining und Airdrop. Alles ist "Anschaffung".

Mining ist eine "Anschaffung" und ein "tauschähnlicher Vorgang" (Randnummer 42)

Forging ist auch "Anschaffung" (Randnummer 33, Ich lese zwischen den Zeilen dass das FA gegenüber dem Hersteller des Genesis Blocks sehr gemein sein könnte)

Es gibt keine Steuerpflicht wegen einer Anschaffung, nur nach der Veräusserung (Randnummer 54). Es gilt die Jahresfrist (Randnummer 55)

Auch für ""unentgeltliche"" (1 * "" im Pdf) Airdrops wird in der Regel eine Leistung erbracht. (Randnummer 29). Leistung ist eine Handlung oder hingegebene Daten. Der Wert entspricht vermutlich dem Marktwert der Gegenleistung. Es ist eine "Anschaffung" (Randnummer 75). Der Wert ist 0 wenn es zu dem Zeitpunkt keinen Markt gibt (Randnummer 73)

Das wäre eine deutliche Verbesserung gegenüber der bisherigen Unsicherheit:
Haltet ihr die Bitcoins länger als 1 Jahr, ist es nicht einmal möglich, diese Gewinne in der Steuererklärung anzugeben. Es gibt dafür einfach kein Feld, schließlich gibt es auch keine entsprechende Steuer!
Einschränkungen: dies gilt nur sicher für gekaufte Coins, bei geminten Coins oder Coins, die man aus einem Airdrop, Faucet, oder anderen Quellen erhält, kann das anders aussehen.

4  Local / Altcoins (Deutsch) / Re: Terra (Luna) - Kann mir jemand erklären was da passiert ist? on: June 11, 2022, 07:18:35 PM
Ich packe das Statement vom Binance CEO CZ mal hier rein

Quote
Wo der Versuch, den Peg wiederherzustellen, schief ging
Das Terra-Team setzte seine Reserven nur langsam ein, um die Anbindung wiederherzustellen. Der ganze Vorfall hätte vermieden werden können, wenn sie ihre Reserven eingesetzt hätten, als die Aufhebung der Bindung bei 5 % lag. Nachdem der Wert der Münzen bereits um 99 % (oder 80 Mrd. $) eingebrochen war, versuchte man, 3 Mrd. $ zur Rettung einzusetzen. Das hat natürlich nicht funktioniert.

In diesem Fall sah es nicht wie ein Betrug aus. Es war einfach nur (in Ermangelung eines höflicheren Wortes) dumm.
Wenn ein Normalkunde egal wo, auch an einer altmodischen Aktienbörse, für seine Position nicht
mehr genug Sicherkeiten hat dann dauert es wenn er Glück hat noch ein paar Minuten bis zur Liquidation,
immer automatisch und bestens, ohne Limit.

Entweder ein algorithmischer Stablecoin ist zu jeder Zeit mit Kollateral gesichert dass der Besitzer des Stablecoins
sich auszahlen lassen kann (Vertrauen braucht man dazu nicht und darf es nicht brauchen)
oder er ist es nicht, dann wird er nicht stabil sein.

Kann sich noch jemand an Nushares erinnern und Nubits, oder Bitshares und BitUSD? Leichen die am Strassenrand liegen gibt es genug.

5  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] BEAM | Mimblewimble | Private | Scalable | No ICO | No Pre Mine on: April 06, 2022, 02:59:55 PM
Litecoin is added to the Beam Atomic Swaps lineup. The swaps are both decentralised and private, with no links between the two blockchains.

Install Beam desktop wallet, and with a few clicks be ready to swap!
if I understand correctly, when a new coin (in this case derived from Bitcoin Core, that has a 0.17.1 core wallet and an Electrum wallet) is added to the Beam Atomic Swaps, this is done only with an update of the desktop wallet while the node operates as before, and this is not a change of the Beam consensus because the consensus has no reason to know any details about the coins in the Atomic Swaps lineup?

6  Alternate cryptocurrencies / Service Discussion (Altcoins) / Re: Can't MetaMask be trusted from now on? on: April 03, 2022, 03:34:34 PM
From what i could understand, even by using a VPN, it's not possible to use the app from one of the restricted regions.
The extension becomes more powerful to detect the ip from the operating system of your device. This proves that MetaMask wasn't a decentralized app since its lunch and that it can be controlled by a centralized power.
Till now, it's not yet clear which regions are banned from using the app and for what reasons, as Russian users seems to be not in the list of the restricted countries. However we can find Iran and Syria as well, and this was confirmed by users from my local board who live in Syria.
When using a VPN, and a site like ipleak.net can't tell the real ip, then MetaMask doesn't know it too. Perhaps it sends data about language setting of operating system or browser to the server that has the node. Or worse, the node could have a blacklist of Eth addresses that have been used from these regions in the past. Or proxyban, then only some VPN should be affected.

7  Alternate cryptocurrencies / Service Discussion (Altcoins) / Re: New metamask wallet scam on: April 01, 2022, 07:33:29 PM

https://twitter.com/MetaMask/status/1508906886610911233?s=20&t=Rm6oIm-IJdZqzT7u74nyJQ
"⚠️ PSA: There’s a new scam making the rounds - fake "mining" sites that ask you to join a "node.”

The site will attempt to connect to your wallet and get you to approve unlimited access to your tokens.
The second one is pretty bad, if I would get this notification while having a wallet unlocked in metamask with USDT in it, maybe I'd click automatically on "Approve".

Nothing can be done about it, Metamask (or a web browser) can't whitelist URLs. Users must know what they must know, things like "don't have critical and unnecessary stuff open in a web browser at the same time, browser extensions can read everything in the browser even while not visibly active at the moment, and metamask is a piece of software that doesn't know my email". (And if it knows my IP or my other Eth addresses then this is my own fault.)

8  Economy / Economics / Re: The Deflationary Spiral Argument on: March 26, 2022, 04:14:19 PM

Imagine people in country A (this country already have its economy, production, import and export etc) decided to switch to BTC only. Since they are trading with another countries they have all production costs in BTC and they are selling everything for BTC while country B (which pays with their own money) is having continuously increasing prices. In the end, you only your products way overpriced in the world market just because you have switched to BTC.
The difference between competitive production costs within your country, or your products becoming overpriced abroad is perhaps not about nominal inflation or deflation, but how people react to it. Who has pricing power, will workers go on strike and demand more increase than current inflation, or will they just do nothing about it. In deflationary spiral, the country could also buy products and labour for cheap from countries that have printed too much fiat. In the end, nothing will be permanently overpriced due to deflation.
9  Other / Off-topic / Re: Metamask on: December 23, 2021, 07:33:11 PM
Let's assume that I have two accounts on my Metamask wallet
Could, actually, a hacker find a method that allows him to understand that those two wallets belong to the same Metamask wallet?

When metamask is unlocked, it knows the balance of these 2 accounts. Metamask is not a full node, it must have contacted a server,
sent the 2 addresses to this server and asked what their current balance is.

Not a hacker, but now the world knows that those two wallets belong to the same Metamask wallet.

10  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [announce] Namecoin - a distributed naming system based on Bitcoin on: November 29, 2021, 04:34:37 PM

The exchange could provide liquidity and make this trading pair more attractive, either with an automated system or manually (let someone trade market maker style with the exchange's money). Otherwise it will be stuck with the chicken and egg problem of no liquidity, no traders, no liquidity.

11  Alternate cryptocurrencies / Altcoin Discussion / Re: Stablecoins and Blacklists on: October 20, 2021, 08:11:47 PM

Until today I thought that, because Tether had to ask Omni for a hardfork to quarantine stolen USDT after the hack on November 19, 2017, freezing funds would require another Omni hardfork to freeze other addresses, and small fish would be safe here. However they lied in their press release
Quote
Note that this software will cause a consensus change to currently running Omni Core clients, meaning that it is effectively a temporary hard fork to the Omni Layer. Integrators running this build will not accept any token sends from the attacker’s address, preventing the coins from moving further from the attacker’s address.

What they actually did was permanently corrupting Omni that was decentralized before.
Code:
https://github.com/OmniLayer/omnicore/commits/master?before=1c0ae8ae01ed79ae3715a16124e8acb98cb67800+4725&branch=master

Conspiracy theory, Tether hacked themselves on purpose so they can lick authority boots and have better compliance.


Any ETH smartcontract may include a token blocking function and any funds may be blocked.
Probably true for any shady crypto even if not a smartcontract.

12  Bitcoin / Project Development / Re: A Blockchain Based Multi-User Roguelike Game on: October 27, 2020, 06:09:09 PM

For more information about this project and its native (and new) cryptocurrency ROGUE check out my post on Medium.

Quote
[...] players will be able to swap their earned Tetras for ROGUE at a fixed exchange rate. The platform takes no fees from deposits [...]

If your system allows both withdrawals and deposits of one coin at a fixed rate in tokens, then I think it's not very difficult to add withdrawals and deposits for other coins at a variable rate calculated from available reserves of the coins and of Tetra tokens.

It wouldn't be decentralized, but would work as some cross-chain, Uniswap style exchange.

13  Economy / Games and rounds / Re: Play 12 rounds of turnbased strategy, win 0.1 BTC on: October 04, 2020, 09:12:48 PM
Only one person will win at this game?

One player character. The masses of new chars that are currently coming forth, e.g. the many Oscars can't win because the original Oscar has already died and is now a monster.

14  Economy / Games and rounds / Re: Play 12 rounds of turnbased strategy, win 0.1 BTC on: October 04, 2020, 08:51:51 PM
And how to tracking blocks?

Can see them in upper left corner of Game tab in the wallet. Pretty fast now.
(And the generated html pages in same folder as the qt give more info, what players exist, what they're planning etc)

15  Bitcoin / Project Development / Re: Strategy Game Development on: October 04, 2020, 03:28:28 PM
Where do you find money(coins that worth money) to pay players in the game?

If you want something like that, you will need to create your own blockchain. Or any new member pay entrance fee and that entrance fee will be a pool prices distributed between players when needed. In return you can send them $3 T-Shirt as the gift for registering on your service.

Most big game worlds, from EVE Online to good ol' WoW, have a currency. Players get it in-game, and spend it in-game. This currency can be a token on an external chain, don't need T-Shirts or your own blockchain. Cheap solution is when only the centralized server that runs the game is a node and converts the token into in-game play money and back, transparent for the players. (don't want them to pay an Eth tx fee for every action in the game)

16  Bitcoin / Project Development / Re: Strategy Game Development on: October 04, 2020, 01:41:31 PM
What is the difference in blockchain game and not blockchain? I mean how blockchain games make money for you?

I think in most cases 'blockchain' means that the game has non-fungible tokens that devs and/or players can sell to make money. If it has a token that is rather common, like in-game gold, then it would be less non-fungible.

17  Bitcoin / Project Development / Re: Strategy Game Development on: October 04, 2020, 12:25:54 PM

EVE Online already has that, and it's free to play now.  :/

It's free but not a blockchain game... however in OP it doesn't say anything about blockchain too.

18  Economy / Games and rounds / Play 12 rounds of turnbased strategy, win 0.1 BTC on: October 04, 2020, 12:13:28 PM
To get the 0.1 BTC prize money, do the following:

1. Download the game client from Smartmonsters.org and read the "How to play" page.
   This is a blockchain game (game client == wallet).

2. Optional but recommended: send PM with a coin address to get 1000 coins
   (on a best efford basis).

3. Wait until block 2000, then make a new player character. Or several. But only one can win.
   ***Only characters created after block 2000 can win***

4. Optional but recommended: make a move every 2000 blocks. (about once per day, but it may vary)
   Winner is the richest player character on testnet block 26000.

5. type in Debug Window:
   
Code:
name_update Alice {\"msg_comment\":\"1BitcoinEaterAddressDontSendf59kuE\"}
   (replace "Alice" with your character name, and the eater address with your BTC address)


Additional rules:

1.) If block 26000 happens before 12:00GMT on Oct 16, then the competition continues 'til next full 1000 blocks after 12:00GMT on Oct 16.

2.) The winner must be alive and not a monster when the competition ends. If it has multiplied, coins of all its descendants count too (if they're alive and not a monster). Output of game client (column "voting coins" in stats_voting.html) is used to determine the winner.

3.) In case of a critical bug, the competition may be paused and then restarted.


I'll try to answer questions about the game here in this thread.

19  Alternate cryptocurrencies / Altcoin Discussion / Re: Aave: Easy Come, Easy Go? on: August 29, 2020, 03:46:59 PM
[...]why are the lenders willing to lend their real coins for some potentially worthless shit, especially if the liquidity pool can never be properly collateralized (which follows from your reasoning)? To me, it seems to be an extremely risky enterprise, given that the market can crash any minute which would trigger the domino effect leaving lenders with nothing but losses

I don't think that one side (coins supplied by lenders) is per definition better quality than the other side (collateral), all can crash. On Compound the coin with highest supply is Dai (996M, which would be more than marketcap of 445M according to CMC?). Dai has already exactly this problem, it's collateralized with another coin that can crash.

If total borrowed amount is small enough compared to marketcap of the coins used as collateral and compared to the liquidity of markets in which liquidation will happen and if (big IF) the system executes this liquidation fast enough, then yes, the pool can be properly collateralized.

If someone fears a crash but wants to stay in crypto, buying stablecoin and lending them out might still be the best option. (compared to buying Tether-like stablecoin and not lending them out)

20  Alternate cryptocurrencies / Altcoin Discussion / Re: Aave: Easy Come, Easy Go? on: August 27, 2020, 01:17:02 PM
And while we are at it, can anyone explain to me what is driving the people who are borrowing coins this way? I've been trying to come up with a single reason what's in it for the borrowers, and still can't wrap my head around it. If you have to provide 200% of collateral, how does all that make sense?

Seriously, what's the point?

It makes sense if the collateral is volatile. Then borrowers pay interest to buy leverage. They can borrow stablecoin, use it to buy more volatile stuff (Eth or token that is accepted as collateral) and then borrow even more. So 200% of collateral becomes actually 1:1.

If market goes up, borrowers get all their now much more valuable collateral back.

If the market crashes really hard, lenders have to bear the tail risk. Perhaps they supplied stablecoin and get back token that is now worthless.

For borrowers this is like a guaranteed stop. Remember, in traditional stock market, or FX market there is never a guaranteed stop, at least not for retail customers. In case of a flash crash, if you're leveraged, a broker will liquidate you at the cruelest possible price, and then may try to foreclose your home to get its money back. Not so in Defi, and this is seriously cool.

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