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5 votes

Why do I have to deposit BTC as missing turnover

You are almost certainly being scammed. Bitcoin wallets do not require activation. In any case, even if you were dealing with some entity that does require verification for using their services, the ...
Raghav Sood's user avatar
  • 17.1k
5 votes

Question about Bitcoin in cash app

It is certainly a scam run by criminals. At best you are knowingly engaging in money laundering stolen money on behalf of criminals - this makes you complicit in their crimes and you are the first ...
RedGrittyBrick's user avatar
5 votes
Accepted

How hard is it for an exchange to adopt native segwit? Is it not as simple as updating the address regex checker on the front-end?

Adopting any deposit change at all is not as simple as "just change regex". There are a few considerations: Addresses must be generated, and generated properly. All generated addresses that ...
instagibbs's user avatar
4 votes

How can other parties track the inflows, outflows, and reserves of exchanges?

Most exchanges aren't publishing this data, some are even trying to hide as much of it as possible, using separate wallets and trying to be smart about change progression. A lot of the analytic ...
Tony Sanak's user avatar
  • 1,699
4 votes

Bitcoin i have been asked to send money for a private key

This is most likely a scam! there have been a similar question recently Why do I have to deposit BTC as missing turnover There is no need to send bitcoin or money to receive a private key or unlock a ...
Saxtheowl's user avatar
  • 2,810
3 votes

How can I know which user made which BTC transaction?

You give each customer a different address. That is the only reasonable approach.
Pieter Wuille's user avatar
3 votes
Accepted

Deposit flow, user balances

These are indeed hard problems, but luckily already served by BTCPay Server, with extra features like lightning payments: https://github.com/btcpayserver/btcpayserver. You can just run it via the ...
Jürgen Strobel's user avatar
2 votes

How to buy Bitcoin in Iran

You will need to find an exchange that accepts your bank account or method of transferring from your account to the exchange. A number of exchanges out there not personally sure which would accept ...
Fuzzybear's user avatar
  • 467
2 votes
Accepted

Detect received transactions of thousands of Bitcoin addresses

This doesn't sound correct to me. You're relying on a centralized service to fetch blocks. What if their system has an error and sends you incorrect data? What if their service is unreachable? It ...
arubi's user avatar
  • 1,864
2 votes

Why do I have to deposit BTC as missing turnover

You are being scammed! Don't send any BTC to them. Proper Bitcoin wallets are generated on your computer / phone, they contain bunch of private keys, each of one has corresponding address, to which ...
Kristaps Kaupe's user avatar
2 votes

What is the best practice for listening to payments on the RPC api?

Bitcoin has walletnotify feature that will notify you when an address you own in your wallet receives a transaction, and a second notification when the transaction confirms. You can set it in your ...
m1xolyd1an's user avatar
  • 5,666
2 votes

How can bitinfocharts.com know the changes in BTC deposited to Binance?

Based on the address the binance gave you, after they sweep the funds into their hotwallet, you can run common-input heuristic on this deposit address (assuming it was swept in with other inputs). The ...
Tony Sanak's user avatar
  • 1,699
2 votes

How hard is it for an exchange to adopt native segwit? Is it not as simple as updating the address regex checker on the front-end?

I assume that you're referring to withdrawals, and I think that you're probably right if the company's backend relies on bitcoind to fully process transactions. If the company's backend manually ...
Gabriel's user avatar
  • 121
2 votes
Accepted

Consider only deposits in a bitcoind’s RPC call listsinceblock transaction returned JSON

Unless you're mining (yourself, not via a pool), you will never see categories "generate", "immature", or "orphan". "send" is only for transactions you create ...
Pieter Wuille's user avatar
1 vote

I want to transfer money from my bank account to somebody elses bitcoin account

If your bank doesn't support Bitcoin payments, I think the nearest process you can get to a single direct transaction without a wallet is to find a BTM (Bitcoin ATM) that accepts payments using your ...
RedGrittyBrick's user avatar
1 vote
Accepted

Same blockhash that appears more times in a bitcoind’s rpc call listsinceblock transaction returned json

Since the txid differs it represents two different transactions in the same block.
RedGrittyBrick's user avatar
1 vote
Accepted

Can a receive transaction be 0 in a bitcoind’s rpc call listsinceblock transaction returned json?

I think creating zero value UTXOs would be an attack, attempting to clog Bitoin nodes. See What is meant by Bitcoin dust? Questions about dust
RedGrittyBrick's user avatar
1 vote
Accepted

How to listen to deposits and confirmations of bitcoin transactions

The bcoin full node and wallet emit JavaScript events for things like blocks and transactions, which can be listened for with a websocket client. There is a guide to sockets and events in bcoin here: ...
pinhead's user avatar
  • 5,164
1 vote

How hard is it for an exchange to adopt native segwit? Is it not as simple as updating the address regex checker on the front-end?

It is not as simple as checking the address format. Different address formats represent different output types. An address that starts with a "1" is a legacy pay-to-public-key-hash output. ...
m1xolyd1an's user avatar
  • 5,666
1 vote

Distinguishing bitcoin deposits

Generally speaking, the only way to distinguish incoming payments is by some combination of sending address (usually arbitrary and not always known in advance) amount (could be same for many people ...
RedGrittyBrick's user avatar
1 vote

Is it a good idea to deposit directly into a service when withdrawing from another?

Many services explicitly warn users against this practice, including in their withdrawal terms clauses like "you may only withdraw to an address which is controlled by you." This is likely ...
QMdEW4pbr's user avatar
1 vote

Exchange Confirmation Requirements

Coinbase probably requires even more confirmations for a deposit of that high a value. According to https://www.crypto51.app at this moment, it would cost some $600,000 to attack the Bitcoin ...
pinhead's user avatar
  • 5,164
1 vote

How can I know which user made which BTC transaction?

Your proposed approach is not practical: Users might change the amount, or omit the fractional part The fractional part might represent significant value - a user with an ID of 1234567 will have to ...
Raghav Sood's user avatar
  • 17.1k
1 vote

Understanding cryptocurrency exchange working

When users deposit cryptocurrency into an exchange, the exchange takes custody. The cryptocurrency is now the exchange's and the exchange adds a corresponding balance for the depositor to their books. ...
Murch's user avatar
  • 75.9k
1 vote
Accepted

BTC deposit old address exchange

You are right, the only ones who should have access to that address is CoinsBit.io. If they claim they are unable to recover the coins, there are only three possible scenarios: They have lost all ...
Raghav Sood's user avatar
  • 17.1k
1 vote

How do different blockchains communicate?

Cryptocurrency exchanges are generally taking custody of your funds while you are using their service. You send a deposit of fiat to their bank account or cryptocurrency to an address under their ...
Murch's user avatar
  • 75.9k
1 vote

Unique Identifier/Credit

This is possible, but your customers will have to use a wallet that supports the functionality of signing messages using the wallet’s private keys. For example, bitcoind has the signmessage command. ...
chytrik's user avatar
  • 18.3k
1 vote

How do exchange services distinguish who sent to them?

Exchanges generate a new address for each user when a user wants to deposit, so when they receive a deposit to a specific address, they know who to credit the deposit to. Since Bitcoin does not use ...
Ava Chow's user avatar
  • 70.9k
1 vote

Can i transfer/deposit bitcoin from another exchange into my bit coin account for trading purposes?

In general you should be able to transfer your bitcoin between any two exchanges for trading. As an example, you may wish to move BTC from GDAX to Gemini for trading. First you should get you'll need ...
Proof of Mike's user avatar

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