How to proving e-mail address?

[Frodek]

Sometimes we wants not so much anonymity, but valuable participation in crypto community.
How to prove e-mail address?
Suppose, that I am registered user and Bob want to be register.
First stage is online off-blockchain:
Bob search registered users online, send (maybe by crypted channel) own e-mail address.
I know his e-mail address
I publish on lobckchain hash of my secret number
I sent him my secret number.
He public full secret number singed by him.

How to ensure, I not stole his e-mail address?
maybe..
he send to 2 or more random users his e-mail address and get 2-3 secrets?
Maybe are better, faster ways?

[Teraboy]

You must be more complex on your question and it's too difficult to understand what you have been doing in your story. Do you wanna register bob's email through your registered email address or something similar to the referral system? Im still feeling confuse to understand your question. Just write it into some sentences with the main point will much better.

[JeotQ]

What kind of English grammar is this?its very confusing, I can't even understand a thing and i bet no one will be able to understand as well, please try to adjust your words so we can give you reasonable answers to your question, thank you

[Frodek]

I would like the user's address to be valuable to him and he not be able to generate easy e.g. 100 addresses.

[Casdinyard]

How to prove e-mail address?

I would like the user's address to be valuable to him and he not be able to generate easy e.g. 100 addresses.

Firstly, what's the purpose of the email address you're referring to? You meant to say, you want to find good addresses that you can give to your client? Or perhaps you want to be sure that the addresses are real?

Afaik, if the email addresses are invalid your email that you're sending will just bounce back to you saying that they can't send the email as the address is invalid. I don't know if this make sense to you or I just can't really understand you.

[huu78]

Prove your email or in terms of others? If your email is just plain email like Gmail and Yahoo will be hard to prove to people if you do an email broadcast like that. Better use hosting to create your personal email and back email such as company name so that the person you send email believes in the project you are sharing.

[Frodek]

I do not necessarily insist on e-mail addresses but I would like a method assigning one crypto address to one user or to one PC. Maybe 2-3 crypto addresses per one PC but not 100-1000. Is known Proof of Space used by BurstCoin, but it only proves that the user has enough disk space and probably he can prove their 100 other private addresses with the same disk space.

[NeuroticFish]

I do not necessarily insist on e-mail addresses but I would like a method assigning one crypto address to one user or to one PC. Maybe 2-3 crypto addresses per one PC but not 100-1000. Is known Proof of Space used by BurstCoin, but it only proves that the user has enough disk space and probably he can prove their 100 other private addresses with the same disk space.

Crypto addresses are not tied to .. anything. Clearly not tied to a PC.
One user can create wallet with same address(es) on many different devices. I have the same wallet on 2 laptops and a smartphone.

Also, at least for privacy reasons, many users/services will give you different receiving address (possibly from the same wallet) for each new payment. So for real use an "address book" is that useful.

[Frodek]

I'm not thinking stricte about cryptocurrency but something like a forum based on blockchain. For example forum bitcointalk required registration. I am thinking about decentralized forum.
My idea: an equal amount is lost per day on each address, man can earns when downloading blockchain, but above all, when sharing blockchain - earns by disk space. Problem: client program is turn off by months, and funds decreasing?

[jagaban]

Seems the poster has some idea but it is difficult to share due to language and translation. I'm still trying to wrap my head around the post above but will appreciate if anyone can elaborate on it easily

[mu_enrico]

I think what he meant was how to prove that Bob sent an e-mail from bob[at]email.com.

Well, that's difficult since the only way for sure is to call him or meet him face to face to ask: "did you really sent this e-mail?"

PGP or Crypto signed message only works if the private key is not compromised. You could check for sure the validity of a key, but the key couldn't 100% prove Bob's identity. Bob's mother could use it if she is a nerd and then pretend to be him to fool his friends

If about bob[at]email.com is the real Bob's email address, then it should be a lot simpler since email usually used multiple times and often public.

[cytpoway121]

Sometimes we wants not so much anonymity, but valuable participation in crypto community.
How to prove e-mail address?
Suppose, that I am registered user and Bob want to be register.
First stage is online off-blockchain:
Bob search registered users online, send (maybe by crypted channel) own e-mail address.
I know his e-mail address
I publish on lobckchain hash of my secret number
I sent him my secret number.
He public full secret number singed by him.

How to ensure, I not stole his e-mail address?
maybe..
he send to 2 or more random users his e-mail address and get 2-3 secrets?
Maybe are better, faster ways?

When it comes to emailing, it is complex and you cannot prove that.
The only way to proof email, is by clicking the verification links sent to them.

So if you use your friends email, and got a code from it, as long as the code works, it can be said that you have access to the email.

The essence of the email verification things is to ensure that the person with the email as access to it.

[Doell]

I understand what you mean proving real e-mail is difficult unless there are other options want to make such as KYC on your website and conect with blockchain ,proving e-mail is not easy because there are many free e-mail too provided by the web such as gmail yahoo etc I think it is still becoming popular in all circles , I don't understand e-mail that can be connected to the blockchain and be valuable ,you misplaced it seems must be move to another section and get support from smart people at here maybe https://bitcointalk.org/index.php?board=6.0

[Dickiy]

Do you mean verification of email ownership? because it seems the question is not too simple and too complicated, if indeed verification is possible what you mean is that the verification request appears up to two or more in a row so as to make the spam notification and verification fail you have to wait a few minutes to ensure the security of your email

[kolonel_x]

Do you mean verification of email ownership? because it seems the question is not too simple and too complicated, if indeed verification is possible what you mean is that the verification request appears up to two or more in a row so as to make the spam notification and verification fail you have to wait a few minutes to ensure the security of your email

It's hard to understand what the OP is talking about at least in the words of the language must be neat so that it's easy to understand.
It seems that is not what is meant by because the OP said that it is connected with the blockchain so it is not detected by scamer or not seen by other users.

[Nadziratel]

Mail security is always very important. Be sure to use 2FA and make sure your password is hard to guess.
We can not say that it is completly secure when you do that. Whatever happens, you must be very careful and keep the devices you use clean. Installed programs, files, games ... all with a number of risks. Always try to make download from reliable sources.

[Xcode7]

Sometimes we wants not so much anonymity, but valuable participation in crypto community.
How to prove e-mail address?
Suppose, that I am registered user and Bob want to be register.
First stage is online off-blockchain:
Bob search registered users online, send (maybe by crypted channel) own e-mail address.
I know his e-mail address
I publish on lobckchain hash of my secret number
I sent him my secret number.
He public full secret number singed by him.

How to ensure, I not stole his e-mail address?
maybe..
he send to 2 or more random users his e-mail address and get 2-3 secrets?
Maybe are better, faster ways?

From what you said, I can only understand the conditions for participating in a project, I also read many times to confirm what you mean. So here you go, in some projects that require accurate or valid data from every participant who registers, I think you also need to ensure that your email is active and of course the data you provide is valid. If you are sure your data is valid, then all your decisions are worthy of joining determined by the project itself. And I don't think we can sue such decisions.

[Dickiy]

Do you mean verification of email ownership? because it seems the question is not too simple and too complicated, if indeed verification is possible what you mean is that the verification request appears up to two or more in a row so as to make the spam notification and verification fail you have to wait a few minutes to ensure the security of your email

It's hard to understand what the OP is talking about at least in the words of the language must be neat so that it's easy to understand.
It seems that is not what is meant by because the OP said that it is connected with the blockchain so it is not detected by scamer or not seen by other users.

maybe my knowledge is too minimal for that but at least I understand a little, how he wants to protect his privacy for the sake of the safety of your email account