Maand: augustus 2015

In Ethereum, what is an uncle block? [closed]

In Ethereum, what is an uncle?

Why does Ethereum take this approach, instead of having a single chain of blocks back to the genesis block?

If you mine a block, and it only gets included as an uncle, how much of the original reward do you get?

How long after the uncle is created is it allowed to be included into a block?

How do I determine the value of new altcoins?

So, I’m curious about the value of altcoins.

Let’s say I were to create an altcoin, and get some people to use it… how would I calculate the value of the coin? Is this determined by exchanges? Or by how much money people give in exchange for X amount of the coin? I’m a bit confused by this. I’ve tried researching it, but nothing’s really helped.

Thanks in advance!

My miner doesnt show up on network but running?

I have an S3+ and yesterday it stopped showing up on my IP scan and connecting to my pool. It still runs the fan (very low speed though) and shows the lights for a network connection, so does my modem. But I can’t access its setup or see it mining in my pool. I have tried all the usual troubleshoots, 3 different PSU’s, reset, new internet connection but none of them helped, any idea why this could be happening, help is appreciated

What happens to Bitcoin wallet / Bitcoins if PC is stolen

I am a beginner and just starting to explore the possibilities of Bitcoins. So I would be very grateful if somebody could help me with this question.
Is there a risk that my Bitcoins are lost if the PC with the bitcoins resp. with the Bitcoin wallet stored on it is stolen or has crashed? Thank you very much.

Understanding basic Bitcoin Transactions: the scriptPubKey.addresses array

I used to think the addresses array into the scriptPubKey (vout) is populated starting from the script, but examining old-fashion multisig transactions, I discovered something made my assumption wrong:

Given this three vouts:

{
    "value" : 0.01000000,
    "n" : 0,
    "scriptPubKey" : {
        "asm" : "1 04cc71eb30d653c0c3163990c47b976f3fb3f37cccdcbedb169a1dfef58bbfbfaff7d8a473e7e2e6d317b87bafe8bde97e3cf8f065dec022b51d11fcdd0d348ac4 0461cbdcc5409fb4b4d42b51d33381354d80e550078cb532a34bfa2fcfdeb7d76519aecc62770f5b0e4ef8551946d8a540911abe3e7854a26f39f58b25c15342af 2 OP_CHECKMULTISIG",
        "hex" : "514104cc71eb30d653c0c3163990c47b976f3fb3f37cccdcbedb169a1dfef58bbfbfaff7d8a473e7e2e6d317b87bafe8bde97e3cf8f065dec022b51d11fcdd0d348ac4410461cbdcc5409fb4b4d42b51d33381354d80e550078cb532a34bfa2fcfdeb7d76519aecc62770f5b0e4ef8551946d8a540911abe3e7854a26f39f58b25c15342af52ae",
        "reqSigs" : 1,
        "type" : "multisig",
        "addresses" : [
            "1AJbsFZ64EpEfS5UAjAfcUG8pH8Jn3rn1F",
            "1A8JiWcwvpY7tAopUkSnGuEYHmzGYfZPiq"
        ]
    }
}

{
    "value" : 0.00000002,
    "n" : 0,
    "scriptPubKey" : {
        "asm" : "1 0351efb6e91a31221652105d032a2508275f374cea63939ad72f1b1e02f477da78 00f2b7816db49d55d24df7bdffdbc1e203b424e8cd39f5651ab938e5e4a193569e 2 OP_CHECKMULTISIG",
        "hex" : "51210351efb6e91a31221652105d032a2508275f374cea63939ad72f1b1e02f477da782100f2b7816db49d55d24df7bdffdbc1e203b424e8cd39f5651ab938e5e4a193569e52ae",
        "reqSigs" : 1,
        "type" : "multisig",
        "addresses" : [
            "1NdB761LmTmrJixxp93nz7pEiCx5cKPW44"
        ]
    }
}

which comes respectively from transactions:

60a20bd93aa49ab4b28d514ec10b06e1829ce6818ec06cd3aabd013ebcdc4bb1
274f8be3b7b9b1a220285f5f71f61e2691dd04df9d69bb02a8b3b85f91fb1857

I have noticed that they share the same script:

OP1 OPDATA OPDATA OP2 OP_CHECKMULTISIG

but with different results.

In the first one transaction you can see two addresses in the addresses array, in the second one you can see only an address.

Also, given this one:

{
    "value" : 0.00000001,
    "n" : 22,
    "scriptPubKey" : {
        "asm" : "1 6565292c66696c653d7379732e737464657272290a0a69662046616c73653a0a202020207072696e742870726f78792e73656e647261777472616e73616374696f 6e287369676e65645f74785b27686578275d29290a656c73653a0a202020207072696e74287369676e65645f7478290a0000000000000000000000000000000000 2 OP_CHECKMULTISIG",
        "hex" : "51416565292c66696c653d7379732e737464657272290a0a69662046616c73653a0a202020207072696e742870726f78792e73656e647261777472616e73616374696f416e287369676e65645f74785b27686578275d29290a656c73653a0a202020207072696e74287369676e65645f7478290a000000000000000000000000000000000052ae",
        "type" : "multisig"
    }
}

which comes from transaction 4b72a223007eab8a951d43edc171befeabc7b5dca4213770c88e09ba5b936e17

No reqsigs nor addresses comes in the parsed transaction.

So, I think I am a little confused on how addresses array is populated.

Will there be 21 million bitcoins eventually?

Every x blocks the mining reward is halved. Will the reward be halved forever such that we never quite reach 21 million bitcoins, or will we reach 21 million bitcoins at some point and will the reward cease to exist altogether?

Extra points for pointing to the relevant code!

Can you use any Bitcoin address as a Counterparty token receiving address?

I have a bunch of bitcoin addresses and I would like to just use them for receiving counterparty tokens. I’ve read that counterparty addresses are the same thing as a Bitcoin address. Is this correct? And if so, doesnt this mean every Bitcoin address can effectively receive counterparty tokens?

I also can’t seem to find an option to import an existing Bitcoin address into the counterwallet website. I was only able to find an import sweep option. screenshot would be nice.