Crypto Tax UK in 2021: Everything You Need to Know

If you’ve engaged in any sort of cryptocurrency transaction over the last year, it’s highly likely that you’re going to have to report it in your tax return. Transactions include, but are not limited to, buying, selling, trading, mining, staking, giving and/or receiving cryptocurrency, and this

Grote Franse bank weigert betalingen naar crypto platforms

Ik moet toegeven dat ik eerder over dit schandaal heb gehoord (op Reddit), maar ik geloofde het toen niet. Blijkbaar hebben verschillende banken in Europa de vervelende gewoonte dat ze opeens geen geld van de rekeningen van hun klanten naar een cryptoplatform zoals Kraken of Coinbase willen overboeken. Klanten hebben al eerder screenshots van dergelijke … Read more

Create Raw Transaction in BitcoinJ offline starting from UTXO info

I would to create offline Raw Transaction (without signing it) in BitcoinJ. The information I know about the inout is UTXO’s hash, index, amount, address, and script. I also know the receiver address of the final transaction, the change address, the amount and the fee.

I’m fighting with the TransactionOutput constructors to build the input for my transaction. I don’t know where to set UTXO hash and index – i think in the "parent" parameter, but i’m failing. This is my snippet:

Transaction parent = ??? 
Coin value = Coin.valueOf(satoshi(utxo.getAmount()));
Address to = Address.fromBase58(params, utxo.getOwnerAddress());
//where do i put utxo hash and index?
TransactionOutput input = new TransactionOutput(params, parent, value, to);
tx.addInput(input)

Unable to connect to slushpool with bfgminer

I am complete newbie and just want to see, how it works in priciple. No profit required. I have created an account on slushpool site and have username and password. Then I go to my ubuntu machine (a desktop, with GPU, no ASICs or something) and ran

bfgminer -o stratum+tcp://stratum.slushpool.com:3333 -u myusername -p mypassword

It started to print in cycles

 [2020-11-13 10:17:47] Waiting for devices; press 'M+' to add, or 'Q' to quit
 [2020-11-13 10:17:47] Probing for an alive pool
 [2020-11-13 10:17:48] pool 0 JSON stratum auth failed: [
   -1,
   "Internal Server Error",
   null
]
 [2020-11-13 10:17:48] No servers were found that could be used to get work from.
 [2020-11-13 10:17:48] Please check the details from the list below of the servers you have input
 [2020-11-13 10:17:48] Most likely you have input the wrong URL, forgotten to add a port, or have not set up workers
 [2020-11-13 10:17:48] Pool: 0  URL: stratum+tcp://stratum.slushpool.com:3333  User: myusername Password: mypassword
 [2020-11-13 10:17:48] Press any key to exit, or BFGMiner will try again in 15s.
 [2020-11-13 10:18:04] No servers were found that could be used to get work from.
 [2020-11-13 10:18:04] Please check the details from the list below of the servers you have input
 [2020-11-13 10:18:04] Most likely you have input the wrong URL, forgotten to add a port, or have not set up workers
 [2020-11-13 10:18:04] Pool: 0  URL: stratum+tcp://stratum.slushpool.com:3333  User: myusername  Password: mypassword

Why? What is happening? What I am doing wrong?