Questions tagged [genesis-block]
Refers to the very first block of a new blockchain based cryptocurrency.
117
questions
2
votes
1
answer
60
views
How can I look at the genesis block raw txn?
If I try to look at the txn in the genesis block, I get:
root@0eef0ed7601c:/home/bitcoin# bitcoin-cli getrawtransaction 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
error code: -5
...
- 223
9
votes
1
answer
584
views
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 ...
- 127
0
votes
2
answers
179
views
Meaning of SigScript in Satoshi Nakamoto's "Genesis" coinbase transaction
The Satoshi's coinbase transaction includes this following scriptSig:
...
- 181
0
votes
1
answer
50
views
Hash publication - Bitcoin whitepaper Section 3 Timestamp server
In section 3.Timestamp Server of the Bitcoin whitepaper it says:
The solution we propose begins with a timestamp server. A timestamp
server works by taking a hash of a block of items to be ...
- 113
2
votes
1
answer
145
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
- 153
0
votes
1
answer
93
views
How is the Genesis Block statically encoded into bitcoin client software?
What does 'statically encoded' even mean?
- 157
1
vote
1
answer
384
views
How did the first transactions take place without balances?
If there were no bitcoins at first, how did a miner approve the transaction in the genesis block? I mean if there are no mined bitcoins (balances), how can a transaction take place? Also, I know that ...
- 113
0
votes
2
answers
231
views
How did Satoshi Nakamoto mine 50 bitcoins by creating genesis block? And where can I see blockchain?
According to bitcoin.org, mining is referred to as 'the process of spending computing power to process transactions, secure the network, and keep everyone in the system synchronized together'.
First, ...
- 21
0
votes
1
answer
63
views
How did bitcoin spread its first rewards
I know that in the genesis block, Satoshi Nakamoto got 50 bitcoin's and there are certain rumors that the first transaction destinations, were are also to his other wallet's, but if he never spent any ...
- 103
1
vote
2
answers
151
views
Why does the Genesis block appear to have a lower hash than necessary?
The hash of the genesis block of bitcoin has two extra 0 as compared to other block hashes. According to the logic, it should have been the same as they all have the same difficulty. Why is it so? Was ...
- 11
0
votes
1
answer
66
views
Is the coinbase transaction the one and only means of minting new coins?
I'm new to blockchain and want to start my own private network. I've gotten a lot of information here about coinbase transactions and how they make mining "empty" blocks useful. I would like ...
- 103
4
votes
2
answers
622
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 ...
- 175
2
votes
1
answer
206
views
What would be the easiest way to test the submitblock method?
I'm constructing a customized miner, and I'd like to check if the submitblock method would work properly when connected to mainnet. What would be the easiest way of doing that using RPC calls and ...
- 121
1
vote
0
answers
96
views
cannot generate bitcoin first block
I have download bitcoin source and change genesis in regtest. and i try to generate 1 block by command ./bitcoin-cli -generate 1 it does not show any mining block. i try over 10 times but it is still ...
- 55
1
vote
1
answer
241
views
How is the Max Target of a Genesis Block Decided?
I've been diving into the world of Blockchain and crypto lately, trying to build my understanding of mining specifically. I understand that in POW systems, the difficulty of the first block is 1, and ...
1
vote
0
answers
86
views
RegTest Genesis Error
how to generate regression test genesis block ? i saw in bitcion nonce is 2. but i generate from
GenesisH0 it not showed nonce 2. for other altcoin i saw nonce is 0 why ? how to generate it ?
python ...
- 11
4
votes
1
answer
613
views
Blocks from before the genesis block
How do we know that there are no blocks that predate the genesis block? A block that could potentially contain any number of coins. If somebody already created such a block from before the genesis but ...
- 135
1
vote
0
answers
91
views
When, and why did people use 1-starting P2PKH address to represent bare-pubkey P2PK outputs?
I notice that some web blockchain explorer, like https://blockstream.info, doesn't show the famous "Satoshi's bitcoin genesis address" (1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa) for me in the ...
- 922
0
votes
1
answer
106
views
cannot decode block 0 to find the output address. I can decode much higher blocks. what am i missing?
Can you please decode block 0 output transaction manually showing me how to get the output address namely: 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa
- 11
2
votes
2
answers
336
views
Why is the scriptSig formatted this way in the Genesis Block (inside function CreateGenesisBlock)
I was exploring the function static CBlock CreateGenesisBlock inside src/chainparams.cpp and I was looking at the way Satoshi created its scriptSig:
txNew.vin[0].scriptSig = CScript() << ...
- 459
0
votes
1
answer
51
views
GetBlockChecked always returning genesis block?
currently I'm exploring Bitcoin source code and I tried to add custom function getblockvalue inside of blockchain.cpp.
Purpose of function is to return sum of all transaction outputs inside of a ...
- 459
0
votes
1
answer
203
views
How to calculate nbits from powlimit
I remember some where was table and python scrypt for do this , when reinstall my debian i was lose this script.
Example we hv uint256S("...
- 205
0
votes
1
answer
113
views
How were the first coins spendable?
Apologies for my limited understanding, still learning.
According to https://en.bitcoin.it/wiki/Genesis_block:
The first 50 BTC block reward went to address
1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa,[1]...
- 119
2
votes
1
answer
206
views
Genesis block coinbase transaction without confirmations
Why the coinbase transaction, comming from the genesis block, don't have confirmations?
All the others coinbase transactions have confirmations, but not in the Genesis block.
- 123
2
votes
0
answers
50
views
What in detail makes the Coinbase in the Genesis Block unspendable? [duplicate]
I was aware that the Genesis block's reward was unspendable, and that there was no UTXO for it in the UTXO Set. I thought that this was due to the Genesis block being hardcoded and the actual ...
- 71.6k
0
votes
1
answer
205
views
Why explorers show difference balance for genesis block?
When I check balance for the address 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa - different sources show different results.
66.92700504 BTC
https://bitref.com/1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa
https://www....
- 135
0
votes
2
answers
541
views
What is the source of initial transactions of bitcoin?
Sorry, if I am wrong or silly!
It is understood that:
a) Satoshi Nakamoto sent the first transaction to developer Hal Finney on January 12, 2009, the genesis block contains 1,073 transactions and he ...
- 113
-1
votes
1
answer
3k
views
ERROR: AcceptBlock: high-hash, proof of work failed (code 16)
I followed this medium link to create a coin just like bitcoin . https://medium.com/@jordan.baczuk/how-to-fork-bitcoin-c39139506443
Based on this tutorial i update DEFAULT_MAX_TIP_AGE to int64_t ...
1
vote
1
answer
1k
views
Premine coins from genesis block are gone after one transaction from account/wallet
Please check the whole question once before giving negative marking or Mark as duplicate of
Why can’t the genesis block coinbase be spent?
Why I cannot get transaction from genesis block [duplicate]...
- 141
-1
votes
1
answer
3k
views
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 ...
0
votes
2
answers
649
views
How do I solo mine my own modified altcoin
I forked DASH a week ago. I am able to generate genesis block hash, merkle hash. I created one VM (ubuntu 16.04) for rpc server. Another one VM For mining. I am able to establish connetion between two ...
- 11
-1
votes
1
answer
272
views
Failed of genesis!
fruitd: chainparams.cpp:207: CMainParams::CMainParams(): Assertion `consensus.hashGenesisBlock == uint256S("0x000000004421dbf94542db9b40e4bc60da8ce6b793f00924cadf5677d364a6a1")' failed.
Aborted
used ...
- 3
2
votes
1
answer
805
views
How is PSZ Timestamp encoded in Bitcoin core code?
In Chainparams.cpp of the Bitcoin Core source, the encoded PSZTimestamp is as follows
...
- 374
0
votes
2
answers
348
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 ...
- 117
1
vote
1
answer
217
views
Is it possible to append new blocks to a block of arbitrary age?
First of all, I'm aware of 51% attacks and how they work.
Though, I was wondering, if Bitcoin and other blockchains allow appending cryptographically valid, new blocks to blocks of arbitrary age (if ...
- 13
-1
votes
2
answers
1k
views
hash dosent match nbits
Im trying to clone a coin and I created a genesis block but when I run the wallet, it dosent start.. When I go to the log file, I see this error and I honestly dont know how to solve the problem. How ...
0
votes
3
answers
2k
views
Problem mining Genesis Block in Dash Clone
Good morning, I need help !! I have cloned other coins (scrypt and SHA256), but I found a big problem with the DASH CLONE.
After having completed the DASHCLONE project. When I can not do the genesis ...
1
vote
1
answer
721
views
Altcoin - genesis block - TypeError: __init__() takes exactly 2 arguments (3 given)
I'm trying to use the genesis script from innova to generate a genesis block of Xevan_hash
https://github.com/innovacoin/GenesisH0/blob/master/genesis.py
I'm using these parameters:
python genesis....
- 111
2
votes
2
answers
677
views
What is Bitcoin's "genesis hash"?
From Lightning Network documentation:
Used in several of the BOLT documents to denote the genesis hash of a target
blockchain. This allows nodes to create and reference channels on
several ...
- 26.5k
0
votes
1
answer
215
views
Restart altcoin blockchain
So, I'm setting up an altcoin for educational purposes and I've essentially forked Litecoin.
It's got a 10% premine on it but this wasn't showing up in my wallet so I deleted the $HOME/.mycoin/ ...
- 127
1
vote
1
answer
816
views
Different hash while creating genesis block
I've created a genesis block following this instructions:
https://bitcointalk.org/index.php?topic=181981.0
Using this data:
./genesis ...
- 161
-1
votes
1
answer
2k
views
How to correctly set attributes for block hash and nBits in PIVX Fork?
I've cloned PIVX(basically a DASH fork) and modified basic parameters. It compiles fine. When I'm trying to run it the server starts and the debug log file shows following errors:
ERROR: ...
- 109
1
vote
0
answers
82
views
Why for creating a new test coin is suggested to use Litecoin code? [closed]
I think I'd prefer to use Bitcoin code. Is there a reason that LiteCoin is preferred?
As far as I know, for creating a different coin from BTC source I need to create a genesis block and remove the ...
- 161
1
vote
1
answer
1k
views
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 ...
- 213
0
votes
1
answer
889
views
Block Hash and Nonce generated by GenesisH0 python script is incorrect
After running GenesisH0 python script to generate the Genesis block for a local testnet (using v0.15.1), I got the following results.
merkle hash: ...
- 21
1
vote
1
answer
135
views
No .altcoin directory being generated
I am trying to create a genesis block for a personal play coin. I get the correct output of assertion failed. However when compiling I noticed the ./altcoin folder is not created at all.
- 11
1
vote
0
answers
215
views
How to check that Genesis Block has valid proof of work using CheckProofOfWork() function?
I have been learning the ins and outs of the bitcoin source code over the past 3 months but I can say I have not fully mastered it yet. I wish to understand how the genesis block is validated using ...
- 21
1
vote
2
answers
565
views
Determining the genesis transaction value or genesis_tx
Is there a way to determine the genesis transaction (genesis_tx) hash? I know the genesis block number but how do you determine genesis_tx? I am looking for this hash for an altcoin which was forked ...
- 29
5
votes
4
answers
1k
views
Why do we need a genesis block?
In bitcoin, a blockchain always starts at the unique genesis block. Beyond that point there can be forks, and only when it is clear which branch will grow fastest (or if it has grown enough), we can ...
- 205
0
votes
1
answer
2k
views
How to create a new genesis block using CreateGenesisBlock() function
I'm trying to create a new genesis block, you know for science.
I saw a lot of write ups online but most of them seem kinda outdated.
I found the function CreateGenesisBlock() in the source code.
...
- 175