MultiChain Developer Q&A - Recent questions tagged fee

INSUFFICIENT PRIORITY message is not triggered

Sun, 16 Aug 2020 15:23:53 +0000

Hi MC team,

I tried to trigger INSUFFICIENT PRIORITY message by sending a transaction with 0 fee or fee under the total cost of the transaction. Here is the procedure:
1. select UTXO

listunspent 0 99999 '["17Wjvi4uhP92zsMgxd36oPxgkCK27FYbnY"]'

{
"txid" : "070c8f0e6180cd85c4f5e07fe7e7a2413f69e67941e39f8230a950477c39bc0e",
"vout" : 0,
"address" : "17Wjvi4uhP92zsMgxd36oPxgkCK27FYbnY",
"account" : "",
"scriptPubKey" : "76a9144770a681a423cf9f5a1cc5566d20528d0986e0c188ac",
"amount" : 0.2,
"confirmations" : 634,
"cansend" : true,
"spendable" : false,
"assets" : [
],
"permissions" : [
]
}

{
"txid" : "3417dbcd3a1546556934a09852829abb57652d3df97ab5cc2264c756f19d0d7f",
"vout" : 1,
"address" : "17Wjvi4uhP92zsMgxd36oPxgkCK27FYbnY",
"account" : "",
"scriptPubKey" : "76a9144770a681a423cf9f5a1cc5566d20528d0986e0c188ac0c73706b67010000000000000075",
"amount" : 0,
"confirmations" : 908,
"cansend" : true,
"spendable" : false,
"assets" : [
{
"name" : "asset_4",
"assetref" : "192-301-5940",
"qty" : 1
}
],
"permissions" : [
]
}
2. createrawtransaction
createrawtransaction '[{"txid":"070c8f0e6180cd85c4f5e07fe7e7a2413f69e67941e39f8230a950477c39bc0e","vout":0},{"txid":"3417dbcd3a1546556934a09852829abb57652d3df97ab5cc2264c756f19d0d7f","vout":1}]' '{"1Ka5jGaok6Ph4JVvmURyAxcmHczhrY3tcn":{"asset_4":1,"":0.2}}' ['']

01000000020ebc397c4750a930829fe34179e6693f41a2e7e77fe0f5c485cd80610e8f0c070000000000ffffffff7f0d9df156c76422ccb57af93d2d6557bb9a825298a034695546153acddb17340100000000ffffffff01002d3101000000003776a914cbb3f02f8d74b3964cc309c2ebfc860ec5cdec1a88ac1c73706b71bb9a825298a034695546153acddb173401000000000000007500000000

signrawtransaction 01000000020ebc397c4750a930829fe34179e6693f41a2e7e77fe0f5c485cd80610e8f0c070000000000ffffffff7f0d9df156c76422ccb57af93d2d6557bb9a825298a034695546153acddb17340100000000ffffffff01002d3101000000003776a914cbb3f02f8d74b3964cc309c2ebfc860ec5cdec1a88ac1c73706b71bb9a825298a034695546153acddb173401000000000000007500000000 "[{\"txid\":\"070c8f0e6180cd85c4f5e07fe7e7a2413f69e67941e39f8230a950477c39bc0e\",\"vout\":0,\"scriptPubKey\":\"76a9144770a681a423cf9f5a1cc5566d20528d0986e0c188ac\",\"redeemScript\":\"\"},{\"txid\":\"3417dbcd3a1546556934a09852829abb57652d3df97ab5cc2264c756f19d0d7f\",\"vout\":1,\"scriptPubKey\":\"76a9144770a681a423cf9f5a1cc5566d20528d0986e0c188ac0c73706b67010000000000000075\",\"redeemScript\":\"\"}]" "[\"L26q7rA5vE8d65PnpAWrP2qwHN8jYVErMDhv1qdWVhzzYNBx8UwN\"]" ALL

3. sendrawtransaction
I get:
0d3ff5484f08b59ab6adfa63f35384af186a46002b7bb5e08351d6b5ba9a43bf
getrawmempool
{"method":"getrawmempool","params":[],"id":"67905551-1597585139","chain_name":"testnet04"}

[
"0d3ff5484f08b59ab6adfa63f35384af186a46002b7bb5e08351d6b5ba9a43bf"
]

Of course the transaction stay in the mempool and it is not mined. That is ok, but no UNSIFFICIENT PRIORITY is triggered.

My MC params are the following:

# Native blockchain currency (likely not required)

initial-block-reward = 0 # Initial block mining reward in raw native currency units. (0 - 1000000000000000000)
first-block-reward = 200000000000 # Different mining reward for first block only, ignored if negative. (-1 - 1000000000000000000)
reward-halving-interval = 52560000 # Interval for halving of mining rewards, in blocks. (60 - 1000000000)
reward-spendable-delay = 1 # Delay before mining reward can be spent, in blocks. (1 - 100000)
minimum-per-output = 0 # Minimum native currency per output (anti-dust), in raw units.
# If set to -1, this is calculated from minimum-relay-fee. (-1 - 1000000000)
maximum-per-output = 200000000000 # Maximum native currency per output, in raw units. (0 - 1000000000000000000)
minimum-offchain-fee = 0 # Minimum fee for publishing off-chain data items, per 1000 bytes, in raw units of native currency. (0 - 1000000000)
minimum-relay-fee = 1000000 # Minimum transaction fee, per 1000 bytes, in raw units of native currency. (0 - 1000000000)
native-currency-multiple = 100000000 # Number of raw units of native currency per display unit. (0 - 1000000000)

Could you kindly explain this?

Thanks,

Fabio

fee value computed by appendrawchange

Mon, 06 Apr 2020 13:12:55 +0000

Dear MC team,

I used createrawtransaction to build a raw permission tx and I used appendrawchange to attach a fee. The transaction is the following:

createrawtransaction '[{"txid":"2a60592ca898c2f889a0ea36ed90753ea0292d67ab27749f956b6f6cc3d76dab","vout":0}]' '{"1CDo6iRvGwssyuGhg6VQnH5TqxeGEPiUgw":{"permissions":{"type":"mine"}}}' ['']

0100000001ab6dd7c36c6f6b959f7427ab672d29a03e7590ed36eaa089f8c298a82c59602a0000000000ffffffff0200000000000000002f76a9147b14db349f3bc31ce26aaae6f895039bdc990f1e88ac1473706b700001000000000000ffffffff88158a5e750000000000000000252273706b69000000001976a914fcc0ec61c6b3cf66ccb6d052b61418d7bcc8ee1388ac756a00000000

After that, I used appendrawchange without specifying a fee, that is:

appendrawchange 0100000001ab6dd7c36c6f6b959f7427ab672d29a03e7590ed36eaa089f8c298a82c59602a0000000000ffffffff0200000000000000002f76a9147b14db349f3bc31ce26aaae6f895039bdc990f1e88ac1473706b700001000000000000ffffffff88158a5e750000000000000000252273706b69000000001976a914fcc0ec61c6b3cf66ccb6d052b61418d7bcc8ee1388ac756a00000000 1Q3SPtj1dfWMTjXkHU3Z3tXq53uRvMUXXh

the tx lenght is 306 chars, so I was expeting a fee of 306/2=153 unit.

After sending I check the fee collected by the miner and I found it is 100 unit.

Could you kindly explain this difference?

My setting for the currency are as follow:

initial-block-reward = 0
first-block-reward = 200000000000
reward-halving-interval = 52560000
reward-spendable-delay = 1
minimum-per-output = 0
maximum-per-output = 200000000000
minimum-offchain-fee = 0
minimum-relay-fee = 1000000
native-currency-multiple = 100000000

Thanks,

Fabio

Insane fees error

Tue, 31 Mar 2020 11:00:57 +0000

Dear MC team,

I setup a test multichain using Bitcoin compatible parameter as specified here:

https://github.com/MultiChain/sample-BitcoinWallet/blob/master/multichain_bitcoin.params.dat

After that I tried to issue an asset using raw transaction:

createrawtransaction '[{"txid":"a1b2...","vout":#}]' '{"1...":{"issue":{"raw":2000}}}'

without specifying any native currency fee for the miner.

I am able to create and sign the transaction using my private key but when I try to broadcast the tx in the network I got the message 'INSANE FEE ERROR'.

What is the meaning of it ? How can I solve?

Thanks

Data Streams with Native Currency as fee?

Mon, 04 Feb 2019 21:02:47 +0000

Hello!

I was reading the documents and as far I can tell Data Streams aren't transactions in the blockchain in the sense that they don't use a UTXO to build upon itself. They function similarly to a broadcasted message throughout the nodes, right?

My main issue here is that I'd like to attach an asset with the stream itself that would work as an incentive for miners to run the network. Meaning that everytime someone publishes using streams they would have to attach an unspent coin to be picked up by miners.

Do you think of anything else that looks like this? I thought about using Inline Metadata, but (1) it doesn't have off-chain/on-chain data management as Data Streams 2.0 and (2) the "publishing act" might not have a properly "receiver" neither an amount to send to the "receiver".

minrelayfee custom

Mon, 14 Jan 2019 15:20:07 +0000

I ran the code:

setruntimeparam minrelaytxfee 2000

returned the error:
Unsupported runtime parameter: minrelaytxfee

What did I do wrong ?

mchn: Coin selection: Transaction too large for fee policy

Mon, 03 Sep 2018 18:28:31 +0000

Hi, I'm getting this message in the debug.log every few seconds.

mchn: Coin selection: Transaction too large for fee policy

Why ?

How can we check that nodes still posses the chunk of the file after a certain period of time ?

Mon, 02 Jul 2018 09:38:07 +0000

Hi,

I'd like to know how and when can we check if the storage nodes still posses the chunks of the files that they should be storing ?

Plus, there are no information about the rewards the storage nodes get when they store a file, is there any rewarding system on Multichain 2.0 Alpha3 ?

Thanks for your response.

Question on setting up transaction fees and where they go

Tue, 22 May 2018 08:57:43 +0000

Hi,

Reading the section under blockchain paramters, my understanding was that I only needed to set up minimum-relay-fee in order to have a transaction fee required. I tried to test it by creating a blockchain with the ff parameters:

initial-block-reward=20000000 (so the initial wallet will have some native currency)

first-block-reward=0 (only want to have txn fee, not mining rewards)

minimum-relay-fee = 100

native-currency-multiple = 100

After starting the blockchain, I check that the initial wallet has 200,000 native currency. This is fine. Let's call this initial one AddrA.

I create two additional addresses using getnewaddress and grant them send, receive permissions. Let's call them AddrB and AddrC.

I do the following transfers using sendfrom api call:

sendfrom AddrA AddrB 10000

sendfrom AddrB AddrC 1000

After that, the wallet balances (via getaddressbalances) are:

AddrA - 190,000

AddrB - 8,999.78

AddrC - 1,000

It looks like some amount of transaction fee has been deducted from AddrB in the last transaction, so that's fine. However, where did the transaction fee go? I assumed it would go to AddrA, but it seems to be missing

Edit: Sorry, literally seconds after posting this I retrieved the balances again, and now AddrA has 190,000.22. So there's transaction fee! I assumed that the transaction fee would reflect at the same time that the transfer is reflected. Is this not so? At what point will the transaction fee be transferred? How long should I expect the delay to be?

Modifying the receipient of transaction fee

Thu, 10 May 2018 07:04:10 +0000

Where in the multichain source code can I change the recipient of the transaction fee when a specific node mines? Also, among all other addresses in the node, how does Multichain select the address in which to send the transaction fee?

Transaction fee in mutlisig transactions

Fri, 13 Apr 2018 07:36:58 +0000

Hi,

I'm using https://www.multichain.com/developers/multisignature-transactions/ as a reference. If I set up my blockchain to have a native currency and transaction fees and I have a 2-of-3 multisig wallet. When I have a transaction to send out funds from the multisig wallet, where will the transaction fee be deducted from? The address that initiated the transaction? The 2nd approver? Or from the wallet funds themselves?

Thanks

Native currency

Wed, 04 Apr 2018 12:25:54 +0000

what is reward-halving-interval,reward-spendable-delay,minimum-per-output,maximum-per-output,minimum-relay-fee,native-currency-multiple and how the values are assigned and how to calculate transaction size?

Please tell me in detail

Thank you,

native currency

Tue, 03 Apr 2018 11:26:41 +0000

Hi,

I have changed native currency like below:

initial-block-reward = 80000000000      # Initial block mining reward in raw native currency units. (0 - -1486618624)
first-block-reward = 100000000000000    # Different mining reward for first block only, ignored if negative. (-1 - -1486618624)
reward-halving-interval = 52560000      # Interval for halving of mining rewards, in blocks. (60 - -1)
reward-spendable-delay = 1              # Delay before mining reward can be spent, in blocks. (1 - 100000)
minimum-per-output = 0                  # Minimum native currency per output (anti-dust), in raw units.
                                        # If set to -1, this is calculated from minimum-relay-fee. (-1 - 1000000 000)
maximum-per-output = 500000000000000000 # Maximum native currency per output, in raw units. (0 - -1486618624)
minimum-relay-fee = 1000000             # Minimum transaction fee, in raw units of native currency. (0 - 1000000000)
native-currency-multiple = 100000000    # Number of raw units of native currency per display unit. (0 - 1000000000)

After setting this,I have transferred some assets to other node And that node not able to send assets to other nodes

It showing error like below

error code: -6
error message:
Insufficient funds

Please let me know how native currency parameters are set and how to resolve the above problem,

Thank You in Advance

How to calculate minimum transaction fee for native currency

Tue, 27 Mar 2018 02:43:56 +0000

Hi all,

What formula does the wallet use to calculate the transaction fee if native currency is enabled?

"Transaction fee too large for fee policy" while uploading data to stream

Mon, 12 Mar 2018 11:44:53 +0000

Hi,

I have a blockchain running on Multichain where I enabled native currency and fees. I kept relay-fees = 10000000(0.1 coins) as I have currency upto 8 decimals. My scenario is that I generated a new address and transfered 1 coin on that address, now I am using that address to publish data on the stream, so I am able to publish upto size 750 bytes, anything greater than that it gives me error "Transaction fees too large for fee policy". Please correct me if I wrong but I guess relay-fees is per KB of data so it's approximately 0.1 coins for 1000 bytes of data and as the address has 1 coin so it should be able to publish around 7-8 KB of data. Could you please direct me in what I am doing wrong? Much help appreciated.

Minimum Realy Fees: Transaction too large for fee policy

Tue, 20 Feb 2018 07:53:07 +0000

I have set up a Blockchain with native currency, and I want to have a minimum fee for the transactions. I am setting the minrelayfees=100000000 (1 native coin), but now it gives me an error "Transaction too large for fee policy" but when I keep the minrelayfees=1000000 (0.01 native coin) than the transactions are broadcasted successfully. How should I set up minimum fees?

Where can I see the specific fees for a transaction?

Fri, 16 Feb 2018 11:05:17 +0000

I have initialised multichain with native currency and also set up the explorer for it. I have given permissions to few addresses and I can see the transactions, but how do I check the fees for transaction. Can I see the fees for a single transaction in explorer or should I use some API's? Fees for a specific transaction?

i'm confused about fee

Wed, 31 Jan 2018 04:55:17 +0000

Hello multichain dev,

i'm confused about fee, this is my question :

1. if my native currency is disabled, so there no fee when i send asset to other address?

2. mining just enable if native currency enabled?

3. is asset can't be mining?

Thank you

Native Currency Intialization

Thu, 18 Jan 2018 06:37:45 +0000

Hi,

I am trying to initialize some native currency for the root node while creating the chain. My use case is to initialize some currency for the admin at root node and also award some native currency to the miners when they start the mining process.

My params.dat file almost as default with changes only for Native Blockchain Currency is:

# Native blockchain currency (likely not required)

initial-block-reward = 80000000000      # Initial block mining reward in raw native currency units. (0 - 1000000000000000000)
first-block-reward = 500000000000000000 # Different mining reward for first block only, ignored if negative. (-1 - 1000000000000000000)
reward-halving-interval = 52560000      # Interval for halving of mining rewards, in blocks. (60 - 4294967295)
reward-spendable-delay = 1              # Delay before mining reward can be spent, in blocks. (1 - 100000)
minimum-per-output = 0                  # Minimum native currency per output (anti-dust), in raw units.
                                        # If set to -1, this is calculated from minimum-relay-fee. (-1 - 1000000000)
maximum-per-output = 100000000000000    # Maximum native currency per output, in raw units. (0 - 1000000000000000000)
minimum-relay-fee = 1000000             # Minimum transaction fee, per 1000 bytes, in raw units of native currency. (0 - 1000000000)
native-currency-multiple = 100000000    # Number of raw units of native currency per display unit. (0 - 1000000000)

I have set the initial-block-reward and first-block-reward but when I run "getinfo," it shows balance as zero.

getinfo result:

{
    "version" : "1.0.2",
    "nodeversion" : 10002901,
    "protocolversion" : 10009,
    "chainname" : "chain1",
    "description" : "MultiChain chain1",
    "protocol" : "multichain",
    "port" : 2887,
    "setupblocks" : 60,
    "nodeaddress" : "chain1@172.31.50.254:2887",
    "burnaddress" : "1XXXXXXWh4XXXXXXT9XXXXXXhTXXXXXXU2TVAU",
    "incomingpaused" : false,
    "miningpaused" : false,
    "walletversion" : 60000,
    "balance" : 0.00000000,
    "walletdbversion" : 2,
    "reindex" : false,
    "blocks" : 0,
    "timeoffset" : 0,
    "connections" : 0,
    "proxy" : "",
    "difficulty" : 0.00000006,
    "testnet" : false,
    "keypoololdest" : 1516192388,
    "keypoolsize" : 2,
    "paytxfee" : 0.00000000,
    "relayfee" : 0.01000000,
    "errors" : ""
}

Do I need to configure some other params? How should I get some native currency for master node admin?

sending transaction fee from a fixed address, when using sendassetfrom

Mon, 27 Nov 2017 07:30:39 +0000

We have a chain with transaction fees to send assets - and we use that to manage assets on behalf of users, by linking addresses with account emails in our database. We use sendassetwithmetadatafrom, but at the moment each account address needs to have native currency for us to do that...is there anyway around that?..for example, inlcuding the transaction fee from a central admin address?..

transaction fee native currency varies

Fri, 29 Sep 2017 18:33:48 +0000

I upgraded multichain to 1.0.1 and created a test chain with some native currency issued - the params on that section are as follows:

"first-block-reward" : 10000000000000000,
"initial-block-reward" : 0,
"reward-halving-interval" : 52560000,
"reward-spendable-delay" : 1,
"minimum-per-output" : 100000000,
"maximum-per-output" : 10000000000000000,
"minimum-relay-fee" : 1000000,
"native-currency-multiple" : 100000000,

Fees are slightly different for each transaction:

I issued an asset and that was a fee of 0.00497
sent asset to another node - 0.00404
to send native currency to another node - 0.00226
from the other node to send asset back to first node - 0.00403

How to get the fee to 0.001 for anything less than 1kb transactions - params not correct?

What happens to transaction fee in Native blockchain currency?

Tue, 19 Sep 2017 09:30:35 +0000

What happens to transaction fee in Native blockchain currency?
Is it going to miners?

question on transaction fees

Tue, 05 Sep 2017 09:02:33 +0000

I am setting up a chain where I want the transaction fee to be fixed at 1 unit, and we will be selling those units for usage on the platform. So is it ok to set the following?:

minimum-per-output = 1
maximum-per-output = 1
minimum-relay-fee = 1

If I wanted the transaction fees to be burned, is there a way to do that?..

How to set fee to zero?

Thu, 27 Jul 2017 19:42:54 +0000

Hi, i make my blockchain for ponzi games, and need to set tx fee to zero. Is it posible?

I will mine in one node

how to create a fee for my business application?

Wed, 14 Jun 2017 00:07:31 +0000

how to implement a fee for my business in each wallet transaction?

Is it possible to natively implement "reselling fees" for assets?

Tue, 28 Feb 2017 12:35:34 +0000

Let's say I want to use Multichain as trading-platform for licences:

An "author" creates a native asset X representing some licence and sells a unit of X to someone else on the chain for the native currency (or maybe even other native assets?).

Is it possible for the author to enforce a "reselling fee" so that he automatically receives a fraction of any resales of X on the chain?

To my understanding of smart-contracts and Multichain, this would require smart-contracts? Especially since this is such a loose requirement. (What's the amount of the fee: absolute, relative, a mix? Does the fee only apply to native currency trades or can it be applied to other assets? If so, how exactly? Can every author decide on the fee for each of his assets?)

I forgot to add: This request very much seems like the paragraph about Enforcing on-chain payments from your blog entry: http://www.multichain.com/blog/2016/04/beware-impossible-smart-contract/, however I'd expect a transaction involving bound assets to simply fail if either party cannot fulfill the fee (pretty much in the same way as a regular transaction will fail if the outputs exceed the inputs)

Invalid amount

Mon, 08 Aug 2016 06:16:16 +0000

I have built a new blockchain and modified the params.dat

"first-block-reward" : 5000000000,
"initial-block-reward" : 5000000000,
"reward-halving-interval" : 210000,
"reward-spendable-delay" : 1,
"minimum-per-output" : -1,
"maximum-per-output" : 100000000000000000,
"minimum-relay-fee" : 1000,
"native-currency-multiple" : 100000000,

Then i started mine, and rewarded many native currency.

"balance" : 9150.00000000

When i wanted to issue a new issue, it told me something wrong

error code: -5
error message:
Invalid amount

What happened? didn't i have enough native currency to pay for the transaction fee？