MultiChain Developer Q&A - Recent questions tagged vout

Send multiply assets in one transaction

Sun, 16 Apr 2023 06:03:26 +0000

Hi, so, two different users, sent me 2 different assets, A and B, obviously, UTXOs with this assets resides in different transactions. What I want, is to consume this UTXOs and send TX to another user with assets A+B in one transaction? Just like we do with native coin, combining UTXOs value until it become >= the value we want to send. All my tries failed with typical node error, mandatory-script-verify-flag. All inputs are signed as it needs to be done with native coin inputs.

Second question, so if the case above is not possible and I will need to create two TXs to send asset A and B, will I be able to send assets A and B in one transaction in case this assets resides in one UTXO from one user?

Thanks in advance

Vout hex decode

Thu, 18 Aug 2022 12:38:20 +0000

Hi, we have tx example: https://explorer.xfccoin.io/api/getrawtransaction?txid=2c471ad416f3098edd2a3c259e87e165ed1420e7e16c93dc16b699aa4e47cf49&decrypt=1

Vout 0 hex 76a914c7e599002aa10db30323c355e019e18cea440ebc88ac1c73706b71...

What does this single byte between p2pkh script and metadata do? How to interpret it?

Vout 1 hex:

76a914a8d59dfa8a7478240aaaacb6f5bc4b46614a793688ac4d040373706b71...

Again what is this byte sequence for?

Additional question, if i have some assets: x(10) y(10) z(10) and I am sending one X asset to someone, this tx should ALWAYS contain change vout with x(9) y(10) z(10) and if I am creating tx from scratch (without multichaind) - I will have to create this change output by myself with all unspent assets I have?

Vout n[2] in "issuefirst" transaction

Thu, 04 Aug 2022 07:52:09 +0000

Hi, somehow my previous question went to approvement once again, im duplicating it here.

So the question is - what is third vout in this transaction for: https://explorer.xfccoin.io/api/getrawtransaction?txid=9a65248b9e7007fabbdeef0054d7d0eb58f002b28a75ec6b1899fd6d5c21e3be&decrypt=1

I saw previous answer by admin, and it says that this vout is change for the address who issued new asset, but as far as i understand it is not the case. Cause change address is totally different from issuer address in this transaction.

Issuer: faCGaHimGTPf1bt3PJJfnjLLMadi4Vtc6gvuMp

Third vout: fPnjGLkQdBkc6CRecs4TPG1GnG1zuoKXgaueEe

Meaning of n[2] vout in "issuefirst" type of transaction

Wed, 03 Aug 2022 13:26:49 +0000

Hi, i'm trying to understand raw transaction.

For example we have such tx: https://explorer.xfccoin.io/api/getrawtransaction?txid=26853a6c330b2dc334d38541da04b591eb7161f2f48e916491fc80475099ce2c&decrypt=1

It is issuing new asset XFCPRMALINOV

n[0] vout contains new issuance quantity metadata before OP_DROP and stuff;

n[1] vout contains name of new asset before OP_DROP and stuff;

Its pretty clear. But..

What is vout n[2] for? It is utxo for some address without any value in native coin. How the address mentioned in this vout interacts with newly created asset if it does?

Thanks

What does vin and vout signifies? what is the purpose of vin and vout.

Wed, 04 Mar 2020 04:08:38 +0000

I read the reference given by you but still that hasn't cleared my doubts. I am not getting the significance of vin and vout.

scriptPubKey

Wed, 09 Jan 2019 10:00:43 +0000

The scriptPubKey represents the conditions under which this output can be spent in the input of a new transaction. In most cases, it just contains a representation of the address owning that output, meaning that it can only be spent by a transaction signed by the private key corresponding to that address.

On your above statement , lets say address "A " has 5 coins or asset and "A" sends 2 coin to address "B" then now owner of 2 coins out of 5 coins is "B" so scriptPubKey contain address of B who is new owner of asset?

and in this case 3 coins which is unspent that will revert back to sender that would be unspent transaction output is it?

The value of Vout in my decoderaw transaction result is different from the size I entered in getwallet transaction

Thu, 03 Jan 2019 06:17:59 +0000

decoderawtrawnsaction:

"value" : 2999999998.99998,
  "n" : 1,

getwallettransaction:

{
    "amount" : -1,
    "fee" : -0.000022,
    "confirmations" : 11,

The real result of decoderaw transaction should be 29999998.99999978, which shows only 2999999998.9999998.

What does "vout" : -1 mean in preparelockunspent output?

Mon, 05 Nov 2018 23:03:01 +0000

Hello,

what does "vout" : -1 mean in preparelockunspent output?
I keep getting alternately -1 and 0 and I don’t understand why.

The method I used is the following:

preparelockunspent '{"asset1":1}'

I have got more than 300 units of asset1.

Thank you very much.

How a vout (and particularly scriptPubKey) works ?

Thu, 05 Jul 2018 14:29:25 +0000

Hello !

I've some questions about the vout of a transaction, and to be more precise, about scriptPubKey.

As I can see, a typical output transaction looks like this :

{
            "value" : 0.00000000,
            "n" : 1,
            "scriptPubKey" : {
                "asm" : "OP_DUP OP_HASH160 eadb51503d0c15d2d36c3354dd0bfeb63ec4b91b OP_EQUALVERIFY OP_CHECKSIG 73706b67c166070000000000 OP_DROP",
                "hex" : "76a914eadb51503d0c15d2d36c3354dd0bfeb63ec4b91b88ac0c73706b67c16607000000000075",
                "reqSigs" : 1,
                "type" : "pubkeyhash",
                "addresses" : [
                    "1Yk36JuVbQuyr1y5uSJQDLfvnCxpHSi3WNsSgg"
                ]
            },
            "assets" : [
                {
                    "name" : "asset-lot@kjlppp",
                    "issuetxid" : "17b6762b2f5752e224bcd302852d40b68443c04a2bb68d71c473ac4355da30a3",
                    "assetref" : "86-491-46615",
                    "qty" : 485.05700000,
                    "raw" : 485057,
                    "type" : "issuefirst"
                }
            ],
            "permissions" : [
            ],
            "items" : [
            ]
        }

When seeing this, some questions pop out of my mind :

- What is exactly the purpose of scriptPubKey ?

- What is the 'addresses' field in scriptPubKey ? How can it happen to have more than one address on the list ? How the addresses in this field are chosen ?

- Is it possible to clearly identify in a transaction vout to which address an asset (from the assets list) is sent ?

Thank you very much for the answers !

Is it possible to constrain a single asset by vout

Thu, 26 Apr 2018 08:49:19 +0000

Hello,

I want to know if it is possible to constrain one asset per vout.

I will explain with a use case :

- I have a transaction tx1, having 10 asset@A in unspent vout X

- I have a transaction tx2, having 12 asset@B in unspent vout Y

- I create a new transaction tx3 that do these things :

-- Taking as vin0 the tx1 voutX

-- Taking as vin1 the tx2 voutY

-- Burning 5 asset@A and 6 asset@B.

-- Issuing 5+6=11 asset@C

-- Sending the remaining assets to the proper addresses.

Finally, I have for tx3:

- vout 0: Sending 5 asset@A and 6 asset@B to burnAddress

- vout1: ....

- vout2: Sending the issued 11 asset@C to original address

- vout3: nulldata

- vout4: nulldata

- vout5: nulldata

- vout6: Sending back the remaining 5 asset@A and 6 asset@B to original address.

Is there any way to have instead :

- vout6: Sending back the remaining 5 asset@A to original address.

- vout7: Sending back the remaining 6 asset@B to original address.

Thanks.

vout value to be different from 0

Wed, 12 Apr 2017 09:19:26 +0000

Hi, What is the condition or scenario for "vout" value to be different from "0"

txid: 'ae6d5658b73b5d4d8638da68e443d460fa7996c1e3e6a7dde0c2899afee0299b',
vout: 0,

Thanks,

Vout and txid

Thu, 03 Mar 2016 15:20:07 +0000

after firing "prpearelockunspent" , it returns txid and vout.

What exactly is txid and vout?

How they are generated?