_ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote 7 down vote favorite 4 I am wondering if it is possible to give someone a bitcoin transaction ID and with that he can read some hidden data, like the blockchain.info notes on transactions, but for real, stored in the blockchain forever.I had this idea but I don't think if it would be a good practice: Send the minimum amount of BTC possible, wich is 0.00000001 BTC, or 1 satoshi, to an address, and in that address would be the data.1 ArFAXhvMbwJuub4ujnVbLFszqX3McuzsX As far as I know, the address is formed by 30 letters in base58, but since the first char must be 1 and the last four have to be the checksum, then you have 25 letters in base58, and that's like 17 bytes.So, you have to pay like 0.0001 BTC for the transaction fee, and after that you can add data to that transaction at a price of 17bytes per 1 satoshi, by sending satoshis to many addresses that contains the whole data.

Imagine if we could store data there forever,.. and communicate with the future...Is there any other technique of doing this?Is this technique a good practice?blockchain bitcoind network raw-data up vote 6 down vote then you have 25 letters in base58, and that's like 17 bytes.Imagine if we could store data there forever,.. and communicate with the future... You're going to run into two problems with this: transaction fees and dust rules.Transaction fees mean that each transaction will cost you a couple of cents.Dust rules mean that transactions with outputs below a certain size will simply be dropped.The rationale behind this is that you're sending a transaction so small that the fee required to redeem it will be more than the money that you're sending.In the longer term, the data you're sending is going to look identical to all of the other data that's in the blockchain.That means that you need to identify your transaction somehow.That's usually done by providing the txid, which is 32 bytes.

It depends on what you're trying to accomplish.For example, are you trying to communicate anonymously?You should use BitMessage via Tor instead.Do you want to embed transactional data, like Counterparty does?Embedding the data in Bitcoin is probably the best solution for that.... and communicate with the future... Well, the Internet Archive crawls all webpages (including this one!)so you're already uploading the things you've typed into a distributed, long-lasting datastore.up vote 2 down vote It's been done.You're incurring cost on the whole network for perpetuity (and no, the fee doesn't pay for that).If you really can't stop yourself look at OP_RETURN as that's at least a much more network friendly way of doing it.up vote 2 down vote Bitcoin is for transactions, not storage.A bitcoin-derived system like Ethereum can be used to implement this.StorJ or FileCoin are special blockchain-like systems just for storage.up vote 2 down vote You could use the OP_RETURN operation in your pubkey script.

It gives you 80 bytes of free data (I think it is upgraded from 40 bytes recently you could check).If you are a developer you could create a program based on bitcoinj which helps you to add an OP_RETURN operation to a transaction.Script script = new ScriptBuilder().op(ScriptOpCodes.OP_RETURN).data("your message".getBytes()).build(); tx.addOutput(Transaction.MIN_NONDUST_OUTPUT, script); you could also look at these solutions : python OP_RETURN php-OP_RETURN up vote 0 down vote Is this technique a good practice?bitcoin is fiat currencyYes, there is a number of ways.bitcoin atm netherlands/2014/02/ascii-bernanke-wikileaks-photographs.html /index.php?topic=1023190.0 /petertodd/python-bitcoinlib/blob/master/examples/publish-text.py Your Answer Sign up or log in Sign up using Google Sign up using Email and Password Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service.bitcoin mining malaysia

Browse other questions tagged blockchain bitcoind network raw-data or ask your own question.On the Mastodon social network, you follow some really cool Mastodon users like Carl Chenet :p and each time he talks about Bitcoin, you know it’s a great comment and you usually boost it to share with your Mastodon followers.But sometimes you have to sleep so you need to automatize that boring task.Don’t search any more, just use the new Boost bot!Ok, let’s stick to our example to boost toots from Carl Chenet when he’s talking about Bitcoin.bitcoin icevaultWe are going to create a dedicated user on your system, a dedicated directory in /etc and /var/lib to store Feed2toot configuration and data: Lets generate an app to authorize this app use our account.777 bitcoin hackIt’s a really simple process with the following command: Just answer the questions and the files boost_usercred.txt and boost_clientcred.txt will be created in your current work directory.dogecoin information

We now write the following configuration in the file /etc/boost/boost.ini: Ok lets give some details here: Our Boost configuration is ready.If you want to avoid boosting the last 20 entries of each user you defined, use the following command to populate the Boost database: We are now all set.Just use the following command each time you want to boost all toots matching your criteria(s): It’s more convenient to have a line in your /etc/crontab file in order to not perform manually the previous task.bitcoin legal in romaniaWe want automatize all things!play bitcoin billionaireBoost allows boosting really cool stuff, but always think about the noise for your users it can generate if you use it too much.subway takes bitcoinAs always while automatizing stuff, use it in a smart way and everybody will enjoy it.