Questions tagged [payment-batching]

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Are there any services that group multiple transactions together?

I discovered an interesting block that contains 10 inputs and nearly 200 outputs. Does this indicate the operation of a specific service, or is it simply a case of someone executing a large-scale ...
Moonwalker's user avatar
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2 answers
282 views

Explain like I am 5...how can one transaction hash have so many outputs?

I have tx hash 5b03738ed2cc9c80e6a4dded10794ab28efca2671039764217d53c54f64a3f39 and it contains 11 outputs. I understand how UTXO works, but where I feel confused is how does the sending address know ...
madamepresident's user avatar
2 votes
1 answer
182 views

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 ...
P.S.'s user avatar
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1 answer
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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 "...
Drapper L.'s user avatar
1 vote
1 answer
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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? ...
Drapper L.'s user avatar
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1 answer
147 views

Is it actually possible to pay ONE fee but make many transactions? [duplicate]

I heard that apparently, exchanges and similar "load up" and then "batch-send" many Bitcoin transactions at once, with just one fee, instead of sending each one with a separate fee....
Buchkowski's user avatar
1 vote
2 answers
520 views

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 ...
BTCNOOB1's user avatar
3 votes
3 answers
2k views

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 ...
BTCNOOB's user avatar
  • 31
1 vote
1 answer
199 views

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's user avatar
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1 answer
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What's the best strategy to send btc from one wallet to a address list with transaction id for each payment?

I'm triyng send a mass btc payment, but using "sendToAddress" i'm limited send a new transaction only when the last was confirmed, if i try send when the last was pending of confirmation i'...
Timezoom's user avatar
6 votes
2 answers
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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 ...
Sosthène's user avatar
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2 votes
1 answer
182 views

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 ...
user95756's user avatar
0 votes
1 answer
175 views

Batching transactions to safe on fees

I have some bitcoin spread across multiple addresses. I would like to move these to different addresses. I've heard about batching and was wondering if it is possible to batch the transaction to ...
oshirowanen's user avatar
1 vote
1 answer
300 views

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 ...
Patoshi パトシ's user avatar
1 vote
2 answers
633 views

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: ...
Gagan's user avatar
  • 251
1 vote
1 answer
94 views

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 ...
Maros's user avatar
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4 votes
1 answer
374 views

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, ...
Lizozom's user avatar
  • 141
4 votes
1 answer
631 views

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,...
patrick's user avatar
  • 233
2 votes
0 answers
62 views

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 ...
Murch's user avatar
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15 votes
3 answers
9k views

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 ...
cainy393's user avatar
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