tx · ECse3gkKzDJmV52NPw9zeY4k8UeMfZzziF1Lux5DXViz

3Mz9N7YPfZPWGd4yYaX6H53Gcgrq6ifYiH7:  -1.00000000 Waves

2019.09.09 12:01 [668333] smart asset 3Mz9N7YPfZPWGd4yYaX6H53Gcgrq6ifYiH7 > SELF 0 HOT POTATO

{
    "type": 15,
    "id": "ECse3gkKzDJmV52NPw9zeY4k8UeMfZzziF1Lux5DXViz",
    "fee": 100000000,
    "feeAssetId": null,
    "timestamp": 1568019668411,
    "version": 1,
    "sender": "3Mz9N7YPfZPWGd4yYaX6H53Gcgrq6ifYiH7",
    "senderPublicKey": "2M25DqL2W4rGFLCFadgATboS8EPqyWAN3DjH12AH5Kdr",
    "proofs": [
        "4TfdHdF8gN4UX9gTPYxRXvDh31UacNYSBiRiNo8yxbpJerdD5QNY2DrUuzN2LyjCanjGQmBvnYfdhjMbsxy4nEhk"
    ],
    "assetId": "4BTv2xDm1apCRXxQJ5Hhq3UrLvsEr8ougJR1tkAhaxBQ",
    "script": "base64:AwZd0cYf",
    "chainId": 84,
    "height": 668333,
    "spentComplexity": 0
}

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Differences
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{-# STDLIB_VERSION 2 #-}
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{-# STDLIB_VERSION 3 #-}
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{-# CONTENT_TYPE EXPRESSION #-}
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let minimumWavesBalance = 1000000000
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let moveTimeInBlocks = 5000
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let minimalFeeToMove = 10000000
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let minimalFeeToBurn = 50000000
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match tx {
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    case t: TransferTransaction => 
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        let txId = t.attachment
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        let currentRecipientWavesBalance = wavesBalance(t.recipient)
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        let transaction = transactionById(extract(t.assetId))
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        match transaction {
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            case issueTx: IssueTransaction => 
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                let transactionByIssuer = (t.senderPublicKey == issueTx.senderPublicKey)
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                if (transactionByIssuer)
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                    then if ((minimumWavesBalance > currentRecipientWavesBalance))
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                        then throw("Current balance is less than minimalWavesBalance")
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                        else true
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                    else if ((32 > size(t.attachment)))
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                        then throw("Attachment should contain transaction id ")
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                        else {
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                            let receiveTx = transactionById(txId)
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                            match receiveTx {
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                                case recTx: MassTransferTransaction|TransferTransaction => 
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                                    let receivedBlockNumber = extract(transactionHeightById(recTx.id))
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                                    let receivedAssetInLastNBlocks = if ((moveTimeInBlocks >= (height - receivedBlockNumber)))
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                                        then (t.assetId == recTx.assetId)
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                                        else false
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                                    let feeMore1Waves = (t.fee >= minimalFeeToMove)
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                                    if (if (!(receivedAssetInLastNBlocks))
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                                        then !(feeMore1Waves)
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                                        else false)
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                                        then throw("You got potato long time ago, now you have to pay 1 WAVES fee")
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                                        else if (receivedAssetInLastNBlocks)
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                                            then true
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                                            else feeMore1Waves
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                                case _ => 
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                                    throw("Receive tx should be a transfer")
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                            }
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                            }
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            case _ => 
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                throw("Not issue tx")
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        }
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    case burn: BurnTransaction => 
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        if ((minimalFeeToBurn > burn.fee))
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            then throw("You have to pay 5 WAVES to burn this token")
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            else true
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    case mass: SetAssetScriptTransaction|MassTransferTransaction => 
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        let transaction = transactionById(extract(mass.assetId))
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        match transaction {
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            case issueTx: IssueTransaction => 
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                (mass.senderPublicKey == issueTx.senderPublicKey)
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            case _ => 
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                throw("Bad issue tx type")
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        }
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    case _ => 
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        throw("You only can transfer this token")
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}
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true

github/deemru/w8io/6500d08 
32.88 ms ◑