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6

As of June 19 2019, using the following query: bitcoin-indexer=> select reverse_bytes(output_tx.hash_id || output_tx.hash_rest), output.tx_idx, output_tx.current_height, input_tx.current_height, input_tx.current_height - output_tx.current_height from output inner join input on input.output_tx_hash_id = output.tx_hash_id AND input.output_tx_idx = ...


6

Litecoin was not the first altcoin. It actually uses ideas for altcoins that precede it but had died before it was created. This is mentioned in its announcement thread on bitcointalk.. The very first altcoin was actually Namecoin, announced in April 2011. Namecoin was actively used and mined, and can still be used today.


5

This is not true. Code and code comments in v0.1.5 (the oldest tagged version in git) enforce that there always is a coinbase transaction and that it must always be the first. There cannot be a coinbase transaction elsewhere in the block. Coinbase transactions are defined as transactions with one input whose previous transaction hash is all 0's and whose ...


3

The dust limit is not actually fixed, technically - it varies based on the type of output. 546 satoshis is simply the most commonly known one, for a p2pkh output. Being the longest-lived output type, I suspect some wallets/blog posts/literature might treat it as a hard coded dust limit. As to how to arrive at 546 satoshis, we must first know what "dust" ...


2

As described by Andrew Chow, Namecoin was the first altcoin created as such. It was announced on 2011-04-18. However, according to the question Testnet version history the testnet1 was reset after its coins started to get traded for value. Testnet 2 was kicked off on 2011-02-03, which would allow a case to be made for Testnet 1 to have been the first ...


1

The Bitcoin network was launched in early 2009. To recover your coins, you'll need to find the wallet file that contains your private keys. You'll need to remember how you stored your Bitcoin, did you have a run wallet on a personal computer? etc. Remembering the answer to that question is probably your only hope of recovering your Bitcoin. Without any ...


1

Bitcoin core sets the dust limit to a value where spending an output would exceed 1/3 of its value. This calculation is based on the node's setting for the minimum relay transaction fee (see option -minrelaytxfee) whose default is 0.00001 BTC/KB. Any transaction with a fee less than that does not get relayed by the node i.e. is dropped from its mempool. For ...


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