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Questions tagged [payment-batching]

19 questions
15
votes
3 answers

What is the maximum number of inputs/outputs a transaction can have?

Is there a maximum recommended number of inputs/outputs for each transaction? I was scripting a faucet and wasn't sure whether to payout in one transaction to all addresses or split them into groups of say 100 or 1000.
cainy393
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5
votes
2 answers

Is there a way to determine the optimal size of a batched transaction to save on fees?

I've been looking at other questions about fees and batching, but it seems no one asked if there is some way to determine the optimal size of a transaction to save on fees (assuming all inputs are spending from segwit native UTXOs for…
Sosthène
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4
votes
1 answer

Batching transactions - calculating batch transaction fee

I want to use transaction batching to make BTC payments to multiple recipients. In order to optimize transaction amount \ size, lets I'm making equal transfers of x BTC to N recipients, and that F(x, N) is the function representing the transaction…
Lizozom
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4
votes
1 answer

What is payment batching?

How does Bitcoin transaction batching work exactly? How does this end up looking compared to a regular block of a bunch of transactions? Also, I have read people claim batching causes weaker privacy, how is this exactly?
patrick
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3
votes
3 answers

Why are there so many recipients when I send money from one exchange to another?

So I sent BTC from my Bybit wallet to Coinbase wallet. The transaction was successful and I was looking at the blockchain explorer and it had one sender address with an amount different to what I sent and it had so many other recipient addresses…
BTCNOOB
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2
votes
1 answer

How to combine separately signed inputs from different users?

With two separate signed raw transactions from two users, how would one go about 'batching' these manually (combining the inputs and outputs into a single transaction)? Is this a viable solution for groups of users attempting to save on fees, or…
user95756
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2
votes
0 answers

What impact on privacy does it have when a service like Coinbase starts using batching?

In the recent discussion of Coinbase's sending outage, the question was brought up how the privacy of Coinbase's customers would be affected if Coinbase started to use payment batching instead of sending each payment in a separate transaction. It…
Murch
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2
votes
1 answer

Why does my withdrawal fee not match the transaction fee I'm seeing on a block explorer website?

Sent ~$7 worth of BTC from a Coinbase wallet, to a cold wallet. Coinbase charged a ~$2 "network fee". Make sense so far, but the transaction listed on blockchain.com shows a magnitudes larger fee: ~$80 The receiving cold wallet app shows the $7…
P.S.
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1
vote
1 answer

Questions about sendmany json-rpc

1 - Whats is the limit for sendmany? 2 - Can i batch a large number of payments (several hundreds)? 3 - Does an error in processing any address would interrupt the whole process?
Timezoom
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1
vote
1 answer

Combining a Bitcoin transaction with one address holding USDT, but no BTC and using another address with BTC to pay for the fees?

I have a Bitcoin address that contains USDT, but NO BTC in it. So I cannot even send the USDT out. But I have another bitcoin address that does have BTC. Can I somehow combine these 2 addresses where I can pay the btc from one address that also pays…
Patoshi パトシ
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1
vote
2 answers

Is it possible to create batches of transactions in bitcoin blockchain?

Scenario: Suppose that I have to make three transactions simultaneously to Alice, Bob and Claudia. Now the condition is if any one transaction fails the other two must also not go through. Query: How can I achieve this in BTC blockchain? Is there…
Gagan
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1
vote
1 answer

Conflicting transaction info on Blockchain.info and Jaxx compared to other sources

I sent a batched transaction with 3 inputs pointing to the same output address. The receiver claims they only received 0.00042 BTC when they should have received a total of 0.00128615 BTC. She is using the wallet Jaxx which shows the amount received…
Maros
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1
vote
1 answer

Since transaction fees are based on the "size" in bytes of the transaction, why is it cheaper use "sendmany" rather than just making several?

Since transaction fees are based on the "size" in bytes of the transaction, why is it cheaper use a "sendmany" transaction rather than just making several/many separate "normal" transactions? I don't understand where the "overhead" lies that makes…
Drapper L.
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1
vote
1 answer

What is the limit on the number of "transactions" you can make inside one "sendmany" call/transaction?

https://bitcoincore.org/en/doc/0.21.0/rpc/wallet/sendmany/ What is the limit on the number of "transactions" you can make inside one "sendmany" call/transaction? 10? 50? 500? Thousands? Tens of thousands? Unlimited? What happens if that (presumed,…
Drapper L.
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1
vote
2 answers

Multiple outputs and different amounts on blockchain explorer when I sent BTC from Crypto.com to Coinbase

So I sent BTC from my Crypto.com wallet to my Coinbase wallet. I then went on the blockchain explorer to view the transaction and I am seeing an input that is not my address and various outputs which include my address as well as other addresses…
BTCNOOB1
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