Questions tagged [genesis-block]

Refers to the very first block of a new blockchain based cryptocurrency.

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Why can’t the genesis block coinbase be spent?

According to the bitcoin wiki: The first 50BTC block reward went to address 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa, though this reward can't be spent due to a quirk in the way that the genesis block is ...
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38 votes
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What is TxIn's sequence?

I'm currently trying to generate the genesis block with my code and I've stumbled upon the TxIn sequence field that is not explained in the Protocol Specification wiki page, nor does it seem to appear ...
ThePiachu's user avatar
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2 votes
4 answers
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How can I create a new Genesis Block? [closed]

I'm trying to create a testcoin using litecoin. To create genesis block I changed some lines to : block.nTime = 1390948469; // current time uint256 hashGenesisBlock("0x"); //I dont now it's true or ...
ZG-RG's user avatar
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15 votes
2 answers
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How do you make a Genesis block?

What is involved in creating a genesis block? What makes it different from the other blocks in the chain.
user4381's user avatar
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11 votes
2 answers
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How did the first 50 Bitcoins come into being?

How was the Bitcoin system initialized? Can one start the system with only a single node (computer)? Please explain it in plain English. Thanks, guys.
Ning's user avatar
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4 votes
2 answers
625 views

Why is the full blockchain required, effectively forever?

I do understand that every block is validated in terms of the blocks before it by way of the previous block's hash, all the way back to the genesis block. However, could the protocol be modified such ...
noctonura's user avatar
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1 answer
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What are all the small transactions in Satoshi's address?

I read that Satoshi never moved or spent his coins, so I expected to see his address stay unchanged since mined. But it looks like there are lots of small transactions: e.g. in the first address there ...
fluter's user avatar
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18 votes
1 answer
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Is the timestamp in the genesis block relevant?

Bitcoin's genesis block contains this text published in The Times on January 3rd, 2009: The Times 03/Jan/2009 Chancellor on brink of second bailout for banks According to the Bitcoin Wiki, this ...
nmat's user avatar
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9 votes
1 answer
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Why is there a 5 days gap between genesis and block 1?

I remember reading somewhere that it was because Satoshi wanted to make sure everyone had time to download the client and setup everything, but now that I think about it I’m not satisfied with this ...
Solal's user avatar
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6 votes
2 answers
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What is the genesis block?

What is the genesis block? In which ways is it important or different from other blocks?
Dr.Haribo's user avatar
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5 votes
1 answer
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Is it true the genesis block reward can't be spent forever? [duplicate]

Is the genesis block reward forever unspendable?
Zamicol's user avatar
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3 votes
1 answer
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Why I cannot get transaction from genesis block [duplicate]

When I run command getrawtransaction 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b in my bitcoin-qt console (or bitcoind), I get No information available about transaction (...
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2 answers
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How to make genesis block transaction spendable?

I read this question Why can’t the genesis block coinbase be spent? . It says because of some quirk (the genesis block coinbase transaction is not added to the global transaction database) genesis ...
somesh's user avatar
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1 answer
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given a json of a block, how do I calculate its hash?

Here is the genesis block with its hash. How the hash was calculated? { "hash":"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f", "ver":1, "prev_block":"...
Mike Hunt's user avatar
2 votes
1 answer
169 views

Why 1D00FFFF and not 1CFFFFFF as target in genesis block

Is there a specific reason why 1D00FFFF is the target bit for the genesis block and not 1CFFFFFF? Both bits are forcing 8 zeros in the front of the hash (hexadecimal). Regards steff
steff123's user avatar
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2 answers
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Meaning of SigScript in Satoshi Nakamoto's "Genesis" coinbase transaction

The Satoshi's coinbase transaction includes this following scriptSig: ...
Loopite's user avatar
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1 answer
2k views

How do I create a new genesis block for an altcoin?

I'm trying to clone the Blackcoin sourcecode just for the hell of it but I can't seem to generate a genesis block. I can do it on normal coins, but not here. The Blackcoin developers seem to have ...
helpme's user avatar
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1 answer
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Altcoin Genesis block fails after changing block reward

I have been struggling with this issue for a week. I have created an altcoin forking litecoin code, i have mined genesis block, the compiled code works fine with 50*COIN genesis block reward. When i ...
pbu's user avatar
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2 answers
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altcoin debug.log shows ERROR: CTxDB::LoadBlockIndex() : Failed stake modifier checkpoint height=0 [closed]

What I have done so far: Generated new Genesis Block Generated new MerkleRoot Updated MerkleRoot Updated Genesis block values Commented out these lines Compiled on CentOS 6 Created altcoin....
m1k3y3's user avatar
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0 votes
3 answers
3k views

Extract genesis block raw TX data

RPC does not return the raw transaction for the genesis block. I need to get this data for other coins to be able to add them to ABE. https://github.com/bitcoin-abe/bitcoin-abe/blob/master/Abe/...
NachoCheese's user avatar
0 votes
2 answers
383 views

Is the transaction within Genesis block spendable? [duplicate]

Are the transactions added to the genesis block spendable, just like any other transactions from other blocks, or is that an unspendable coinbase transaction. In other words.. Is the transaction ...
picolo's user avatar
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-1 votes
1 answer
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Cannot mine Genesis / First Block (PIVX Fork / Clone) [closed]

Whatever I do, I am unable to mine the 1st block after the genesis block. All the while, I have assumed that I have mined the Genesis block, and I am unable to mine the 1st block using "setgenerate ...
Harish Kumar B P's user avatar