signed message

[CryptoHFs]

how to send a signed message that the other party can see it without me providing the code to check it

[1714904173]

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[1714904173]

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[1714904173]

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[1714904173]

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[OmegaStarScream]

I'm not sure I understand what you're trying to achieve here. If you're providing a signed message for someone, then you need to give it to other person, otherwise, how are you expecting them to be able to verify it?

[CryptoHFs]

lets say I need to send to your bitcoin address a transaction merged with a message

I want you to see this message without me providing you any details to check it

for example: here is $100 for your birthday - good luck

like when you send someone flowers with a letter

[LoyceMobile]

lets say I need to send to your bitcoin address a transaction merged with a message

I want you to see this message without me providing you any details to check it

for example: here is $100 for your birthday - good luck

like when you send someone flowers with a letter

Send an email? You can use OP_RETURN in Bitcoin, but most users don't look for that.

[CryptoHFs]

If you sign a message, for another person to verify it, you need to send the bitcoin address used, the message and the signature to the person.

verify it like see it? can't just see it from bitcoin explorer txid for example?

[CryptoHFs]

lets say I need to send to your bitcoin address a transaction merged with a message

I want you to see this message without me providing you any details to check it

for example: here is $100 for your birthday - good luck

like when you send someone flowers with a letter

Send an email? You can use OP_RETURN in Bitcoin, but most users don't look for that.

email is a good idea for sure, but trying to do something new.

will look into that op return

[OmegaStarScream]

This should help you achieve what you want: https://armantheparman.com/op_return/

You may want to read the warnings and try this with a small amount first.

You won't need to provide any code to other party in this case, but they will still have to check a block explorer in order to see the message. I don't think wallets will show him that.

[NeuroticFish]

Signed message is something else - it's a simple and plain text plus a signature plus an address it was signed with. This will prove the message's authenticity, you can check in this thread if you're curious.

OP_RETURN is nice, but the length of the data is very limited (80 bytes). Of course, you can add multiple OP_RETURN to one transaction.

Another option I've seen was to create a bunch of burn addresses (addresses that together can build a long sentence and since they're burn addresses they're easy to obtain) and send some (few!!) sats to those addresses in a transaction carefully created to have those outputs in the correct order. Keep in mind that any money sent to burn addresses are lost forever.

[CryptoHFs]

thank you everyone

[CryptoHFs]

what about blockchain transactions that you see for example sent from : binance

is it done using OP_RETURN or how they attach the exchange name to the address as this might be another solution for my idea?

[nc50lc]

is it done using OP_RETURN or how they attach the exchange name to the address as this might be another solution for my idea?

There's no way to attach or tag names to an address in the blockchain.
That must be that blockexplorer's feature that identifies Exchange addresses to be able to tag them.
Those data must be stored in their own server and not in any Bitcoin nodes.

BTW, Blockchain blockexplorer isn't affiliated with Bitcoin nor the blockchain of bitcoin.
If you want another idea aside from OP_RETURN, try this:

• Use a "Vanity Address" with the message that you want; e.g.: 1HBDbob
  However, this will be computationally expensive since the longer the message, the harder it is to create a vanity address that starts with it.
  In average hardware, you can only easily include a 6-character message to the address. (7 if you're lucky)
  You can make vanity address using this tool: VanitySearch (Yet another address prefix finder)
  
  Then send bitcoins to that address and spend it as input of the transaction to the recipient of the message.
  Hopefully, the recipient will notice that the sender's address has a message.