Fee Delegation

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Fee Delegation
TxTypeFeeDelegatedValueTransfer
TxTypeFeeDelegatedValueTransfer is used when a user wants to send KLAY. As Klaytn provides multiple transaction types to make each transaction type serve a single purpose, TxTypeFeeDelegatedValueTransfer is limited to send KLAY to an externally owned account. Therefore, TxTypeFeeDelegatedValueTransfer is accepted only if to is an externally owned account. To transfer KLAY to a smart contract account, use TxTypeFeeDelegatedSmartContractExecution instead. The following changes will be made by this transaction type.
1.The fee payer's balance decreases by the amount of the transaction fee.
2.The sender's nonce increases by one.
3.value KLAY is transferred from the sender to the recipient.
Attributes
Attribute
Type
Description
type
uint8 (Go)
The type of TxTypeFeeDelegatedValueTransfer. This must be 0x09.
nonce
uint64 (Go)
A value used to uniquely identify a sender’s transaction. If two transactions with the same nonce are generated by a sender, only one is executed.
gasPrice
*big.Int (Go)
A unit price of gas in peb the sender will pay for a transaction fee. The amount of transaction fee is calculated as gas * gasPrice. For example, if the transaction consumes 10 units of gas and gasPrice is 10^18, the transaction fee will be 10 KLAY. See Unit of KLAY.
gas
uint64 (Go)
The maximum amount of gas the transaction is allowed to use.
to
common.Address (Go)
The account address that will receive the transferred value.
value
*big.Int (Go)
The amount of KLAY in peb to be transferred.
from
common.Address (Go)
The address of the sender. For more details, see Signature Validation of Transactions.
txSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The sender's signatures. For more details, see Signature Validation of Transactions.
feePayer
common.Address (Go)
The address of the fee payer.
feePayerSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The fee payer's signatures.
RLP Encoding for Signature of the Sender
To make a signature of the sender, RLP serialization should be done like the following:
SigRLP = encode([encode([type, nonce, gasPrice, gas, to, value, from]), chainid, 0, 0])
SigHash = keccak256(SigRLP)
Signature = sign(SigHash, <the sender's private key>)
RLP Encoding for Signature of the Fee Payer
To make a signature of the fee payer, RLP serialization should be done like the following:
SigFeePayerRLP = encode([ encode([type, nonce, gasPrice, gas, to, value, from]), feePayer, chainid, 0, 0 ])
SigFeePayerHash = keccak256(SigFeePayerRLP)
SignatureFeePayer = sign(SigFeePayerHash, <the fee payer's private key>)
RLP Encoding for SenderTxHash
To make a SenderTxHash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
SenderTxHashRLP = type + encode([nonce, gasPrice, gas, to, value, from, txSignatures])
SenderTxHash = keccak256(SenderTxHashRLP)
RLP Encoding for Transaction Hash
To make a transaction hash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
feePayerSignatures (a single signature) = [[v, r, s]]
feePayerSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
TxHashRLP = type + encode([nonce, gasPrice, gas, to, value, from, txSignatures, feePayer, feePayerSignatures])`
TxHash = keccak256(TxHashRLP)
RLP Encoding (Example)
The following shows the result of RLP serialization and the transaction object:
ChainID 0x1
PrivateKey 0x45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8
PublicKey.X 0x3a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33d
PublicKey.Y 0x8072e77939dc03ba44790779b7a1025baf3003f6732430e20cd9b76d953391b3
SigRLP 0xf839b5f4098204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b018080
SigHash 0xb86e4cc0955f7c2cda1b36038c9d43a2724fc956c11e09c37625379b7eb2bd21
Signature f845f84325a09f8e49e2ad84b0732984398749956e807e4b526c786af3c5f7416b293e638956a06bf88342092f6ff9fabe31739b2ebfa1409707ce54a54693e91a6b9bb77df0e7
FeePayerPrivateKey 0xb9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936
FeePayerPublicKey.X 0x327434d4cfc66ef8857d431419e9deebdc53a3e415edcc55382e2d417b8dd102
FeePayerPublicKey.Y 0x65fc97045707faf7b8f81ac65089d4cc71f69ad0bf1bc8559bc24f13fc284ced
SigRLPFeePayer 0xf84eb5f4098204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b945a0043070275d9f6054307ee7348bd660849d90f018080
SigHashFeePayer 0x3e7c5f40e826d1d22493be59bf62928dc397de5c972bd9bfa3fe5206c24a5f82
SignatureFeePayer f845f84326a0f45cf8d7f88c08e6b6ec0b3b562f34ca94283e4689021987abb6b0772ddfd80aa0298fe2c5aeabb6a518f4cbb5ff39631a5d88be505d3923374f65fdcf63c2955b
TxHashRLP 0x09f8d68204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0bf845f84325a09f8e49e2ad84b0732984398749956e807e4b526c786af3c5f7416b293e638956a06bf88342092f6ff9fabe31739b2ebfa1409707ce54a54693e91a6b9bb77df0e7945a0043070275d9f6054307ee7348bd660849d90ff845f84326a0f45cf8d7f88c08e6b6ec0b3b562f34ca94283e4689021987abb6b0772ddfd80aa0298fe2c5aeabb6a518f4cbb5ff39631a5d88be505d3923374f65fdcf63c2955b
TxHash e1e07f9971153499fc8c7bafcdaf7abc20b37aa4c18fb1e53a9bfcc259e3644c
SenderTxHashRLP 0x09f87a8204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0bf845f84325a09f8e49e2ad84b0732984398749956e807e4b526c786af3c5f7416b293e638956a06bf88342092f6ff9fabe31739b2ebfa1409707ce54a54693e91a6b9bb77df0e7
SenderTxHash 40f8c94e01e07eb5353f6cd4cd3eabd5893215dd53a50ba4b8ff9a447ac51731
​
    TX(e1e07f9971153499fc8c7bafcdaf7abc20b37aa4c18fb1e53a9bfcc259e3644c)
    Type:          TxTypeFeeDelegatedValueTransfer
    From:          0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B
    To:            0x7b65B75d204aBed71587c9E519a89277766EE1d0
    Nonce:         1234
    GasPrice:      0x19
    GasLimit:      0xf4240
    Value:         0xa
    Signature:     [{"V":"0x25","R":"0x9f8e49e2ad84b0732984398749956e807e4b526c786af3c5f7416b293e638956","S":"0x6bf88342092f6ff9fabe31739b2ebfa1409707ce54a54693e91a6b9bb77df0e7"}]
    FeePayer:      0x5A0043070275d9f6054307Ee7348bD660849D90f
    FeePayerSig:   [{"V":"0x26","R":"0xf45cf8d7f88c08e6b6ec0b3b562f34ca94283e4689021987abb6b0772ddfd80a","S":"0x298fe2c5aeabb6a518f4cbb5ff39631a5d88be505d3923374f65fdcf63c2955b"}]
    Hex:           09f8d68204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0bf845f84325a09f8e49e2ad84b0732984398749956e807e4b526c786af3c5f7416b293e638956a06bf88342092f6ff9fabe31739b2ebfa1409707ce54a54693e91a6b9bb77df0e7945a0043070275d9f6054307ee7348bd660849d90ff845f84326a0f45cf8d7f88c08e6b6ec0b3b562f34ca94283e4689021987abb6b0772ddfd80aa0298fe2c5aeabb6a518f4cbb5ff39631a5d88be505d3923374f65fdcf63c2955b
RPC Output (Example)
The following shows a transaction object returned via JSON RPC.
{
  "blockHash": "0x7ad6ed1f9955be00db8fb5452125f0e9a3c0856abb5b4cc4aed91ffc134321da",
  "blockNumber": "0x1",
  "contractAddress": null,
  "feePayer": "0x029fdce0457db02f05c4be9f67b7115cb8ea15ca",
  "feePayerSignatures": [
    {
      "V": "0x26",
      "R": "0x984e9d43c496ef39ef2d496c8e1aee695f871e4f6cfae7f205ddda1589ca5c9e",
      "S": "0x46647d1ce8755cd664f5fb4eba3082dd1a13817488029f3869662986b7b1a5ae"
    }
  ],
  "from": "0x0fcda0f2efbe1b4e61b487701ce4f2f8abc3723d",
  "gas": "0x174876e800",
  "gasPrice": "0x5d21dba00",
  "gasUsed": "0x7918",
  "logs": [],
  "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "nonce": "0x2",
  "senderTxHash": "0x6a8cf9a2f6d16561303445309d4f210c8be862f0d0c0e6f4998775fef9b4f957",
  "signatures": [
    {
      "V": "0x25",
      "R": "0x368b3324b37831b51711a2eba2a7608438a2bd5956ccecbcdb07d9163ff8bc87",
      "S": "0x7ee2e86ad6f01c867b2ced9d69e614ba22e539726451400fccdd56acbbc7a6f7"
    }
  ],
  "status": "0x1",
  "to": "0x75c3098be5e4b63fbac05838daaee378dd48098d",
  "transactionHash": "0xea4341b5c95fd5a0c3a8a15a4177ab6394725c24f722a9e31f53474a6dcf086a",
  "transactionIndex": "0x2",
  "type": "TxTypeFeeDelegatedValueTransfer",
  "typeInt": 9,
  "value": "0x21e19e0c9bab2400000"
}
TxTypeFeeDelegatedValueTransferMemo
TxTypeFeeDelegatedValueTransferMemo is used when a user wants to send KLAY with a specific message. TxTypeFeeDelegatedValueTransferMemo is accepted only if to is an externally owned account. To transfer KLAY to a smart contract account, use TxTypeFeeDelegatedSmartContractExecution instead. The following changes will be made by this transaction type.
1.The fee payer's balance decreases by the amount of the transaction fee.
2.The sender's nonce increases by one.
3.value KLAY is transferred from the sender to the recipient.
Attributes
Attribute
Description
Type
An example value
type
uint8 (Go)
The type of TxTypeFeeDelegatedValueTransferMemo. This must be 0x11.
​
nonce
uint64 (Go)
A value used to uniquely identify a sender’s transaction. If two transactions with the same nonce are generated by a sender, only one is executed.
​
gasPrice
*big.Int (Go)
A unit price of gas in peb the sender will pay for a transaction fee. The amount of transaction fee is calculated as gas * gasPrice. For example, if the transaction consumes 10 units of gas and gasPrice is 10^18, the transaction fee will be 10 KLAY. See Unit of KLAY.
​
gas
uint64 (Go)
The maximum amount of gas the transaction is allowed to use.
​
to
common.Address (Go)
The account address that will receive the transferred value.
​
value
*big.Int (Go)
The amount of KLAY in peb to be transferred.
​
from
common.Address (Go)
The address of the sender. For more details, see Signature Validation of Transactions.
​
input
[]byte (Go)
Data attached to the transaction. The message should be passed to this attribute.
​
txSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The sender's signatures. For more details, see Signature Validation of Transactions.
​
feePayer
common.Address (Go)
The address of the fee payer.
​
feePayerSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The fee payer's signatures.
​
RLP Encoding for Signature of the Sender
To make a signature of the sender, RLP serialization should be done like the following:
SigRLP = encode([encode([type, nonce, gasPrice, gas, to, value, from, input]), chainid, 0, 0])
SigHash = keccak256(SigRLP)
Signature = sign(SigHash, <the sender's private key>)
RLP Encoding for Signature of the Fee Payer
To make a signature of the fee payer, RLP serialization should be done like the following:
SigFeePayerRLP = encode([encode([type, nonce, gasPrice, gas, to, value, from, input]), feePayer, chainid, 0, 0])
SigFeePayerHash = keccak256(SigFeePayerRLP)
SignatureFeePayer = sign(SigFeePayerHash, <the fee payer's private key>)
RLP Encoding for SenderTxHash
To make a SenderTxHash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
SenderTxHashRLP = type + encode([nonce, gasPrice, gas, to, value, from, input, txSignatures])
SenderTxHash = keccak256(SenderTxHashRLP)
RLP Encoding for Transaction Hash
To make a transaction hash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
feePayerSignatures (a single signature) = [[v, r, s]]
feePayerSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
TxHashRLP = type + encode([nonce, gasPrice, gas, to, value, from, input, txSignatures, feePayer, feePayerSignatures])
TxHash = keccak256(TxHashRLP)
RLP Encoding (Example)
The following shows the result of RLP serialization and the transaction object:
ChainID 0x1
PrivateKey 0x45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8
PublicKey.X 0x3a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33d
PublicKey.Y 0x8072e77939dc03ba44790779b7a1025baf3003f6732430e20cd9b76d953391b3
SigRLP 0xf841b83cf83a118204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b8568656c6c6f018080
SigHash 0x3333b9336d431ffa53b795fedcf03cc2217cea3f26825ea5cbf7d69f0b99fde9
Signature f845f84326a064e213aef0167fbd853f8f9989ef5d8b912a77457395ccf13d7f37009edd5c5ba05d0c2e55e4d8734fe2516ed56ac628b74c0eb02aa3b6eda51e1e25a1396093e1
FeePayerPrivateKey 0xb9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936
FeePayerPublicKey.X 0x327434d4cfc66ef8857d431419e9deebdc53a3e415edcc55382e2d417b8dd102
FeePayerPublicKey.Y 0x65fc97045707faf7b8f81ac65089d4cc71f69ad0bf1bc8559bc24f13fc284ced
SigRLPFeePayer 0xf856b83cf83a118204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b8568656c6c6f945a0043070275d9f6054307ee7348bd660849d90f018080
SigHashFeePayer 0xed015096fb27764f576415e23576228cbf7c4fdad464ea7ffc3a1856dfe391c9
SignatureFeePayer f845f84326a087390ac14d3c34440b6ddb7b190d3ebde1a07d9a556e5a82ce7e501f24a060f9a037badbcb12cda1ed67b12b1831683a08a3adadee2ea760a07a46bdbb856fea44
TxHashRLP 0x11f8dc8204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b8568656c6c6ff845f84326a064e213aef0167fbd853f8f9989ef5d8b912a77457395ccf13d7f37009edd5c5ba05d0c2e55e4d8734fe2516ed56ac628b74c0eb02aa3b6eda51e1e25a1396093e1945a0043070275d9f6054307ee7348bd660849d90ff845f84326a087390ac14d3c34440b6ddb7b190d3ebde1a07d9a556e5a82ce7e501f24a060f9a037badbcb12cda1ed67b12b1831683a08a3adadee2ea760a07a46bdbb856fea44
TxHash 8f68882f6192a53ba470aeca1e83ed9b9e519906a91256724b284dee778b21c9
SenderTxHashRLP 0x11f8808204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b8568656c6c6ff845f84326a064e213aef0167fbd853f8f9989ef5d8b912a77457395ccf13d7f37009edd5c5ba05d0c2e55e4d8734fe2516ed56ac628b74c0eb02aa3b6eda51e1e25a1396093e1
SenderTxHash fffaa2b38d4e684ea70a89c78fc7b2659000d130c76ad721d68175cbfc77c550
​
    TX(8f68882f6192a53ba470aeca1e83ed9b9e519906a91256724b284dee778b21c9)
    Type:          TxTypeFeeDelegatedValueTransferMemo
    From:          0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B
    To:            0x7b65B75d204aBed71587c9E519a89277766EE1d0
    Nonce:         1234
    GasPrice:      0x19
    GasLimit:      0xf4240
    Value:         0xa
    Signature:     [{"V":"0x26","R":"0x64e213aef0167fbd853f8f9989ef5d8b912a77457395ccf13d7f37009edd5c5b","S":"0x5d0c2e55e4d8734fe2516ed56ac628b74c0eb02aa3b6eda51e1e25a1396093e1"}]
    FeePayer:      0x5A0043070275d9f6054307Ee7348bD660849D90f
    FeePayerSig:   [{"V":"0x26","R":"0x87390ac14d3c34440b6ddb7b190d3ebde1a07d9a556e5a82ce7e501f24a060f9","S":"0x37badbcb12cda1ed67b12b1831683a08a3adadee2ea760a07a46bdbb856fea44"}]
    Data:          36383635366336633666
    Hex:           11f8dc8204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b8568656c6c6ff845f84326a064e213aef0167fbd853f8f9989ef5d8b912a77457395ccf13d7f37009edd5c5ba05d0c2e55e4d8734fe2516ed56ac628b74c0eb02aa3b6eda51e1e25a1396093e1945a0043070275d9f6054307ee7348bd660849d90ff845f84326a087390ac14d3c34440b6ddb7b190d3ebde1a07d9a556e5a82ce7e501f24a060f9a037badbcb12cda1ed67b12b1831683a08a3adadee2ea760a07a46bdbb856fea44
RPC Output (Example)
The following shows a transaction object returned via JSON RPC.
{
  "blockHash": "0x7ad6ed1f9955be00db8fb5452125f0e9a3c0856abb5b4cc4aed91ffc134321da",
  "blockNumber": "0x1",
  "contractAddress": null,
  "feePayer": "0x029fdce0457db02f05c4be9f67b7115cb8ea15ca",
  "feePayerSignatures": [
    {
      "V": "0x25",
      "R": "0xb5d80dc924c51f58eb674a142ebfd8ca1c0bc722bc85b001a5a6905ba8226b1",
      "S": "0x79852418faacd4407aee4a461a08602fcf6a3a3cb63b9ba69d70ffe2f5fe3cd"
    }
  ],
  "from": "0x0fcda0f2efbe1b4e61b487701ce4f2f8abc3723d",
  "gas": "0x174876e800",
  "gasPrice": "0x5d21dba00",
  "gasUsed": "0x7b0c",
  "input": "0x68656c6c6f",
  "logs": [],
  "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "nonce": "0x5",
  "senderTxHash": "0x5a4e42bac0b2bc8dda4ee82bfafc83e7f156f74d81d367a3db430abd40b2cd47",
  "signatures": [
    {
      "V": "0x26",
      "R": "0xe8f5484b057b542c80f16c5bb8707e040619c3dc9ac5628d2797aa3d8a2fc0d0",
      "S": "0x5d598f2f10283ded6f6e6a216f4278b27fdf4d431272fa090064ac0fd3fc8102"
    }
  ],
  "status": "0x1",
  "to": "0x75c3098be5e4b63fbac05838daaee378dd48098d",
  "transactionHash": "0x66fe4d1abdf15a250f9391646e0242c8e4c3310250ca316d8fd00856aac16172",
  "transactionIndex": "0x5",
  "type": "TxTypeFeeDelegatedValueTransferMemo",
  "typeInt": 17,
  "value": "0x989680"
}
TxTypeFeeDelegatedSmartContractDeploy
TxTypeFeeDelegatedSmartContractDeploy deploys a smart contract with fee delegation. The following changes will be made by this transaction type.
1.The fee payer's balance decreases by the amount of the transaction fee.
2.The sender's nonce increases by one.
3.A smart contract is deployed with the code in input. The deployed address will be returned via contractAddress in the receipt.
4.value KLAY is transferred from the sender to the recipient.
Attributes
Attribute
Type
Description
type
uint8 (Go)
The type of TxTypeFeeDelegatedSmartContractDeploy. This must be 0x29.
nonce
uint64 (Go)
A value used to uniquely identify a sender’s transaction. If two transactions with the same nonce are generated by a sender, only one is executed.
gasPrice
*big.Int (Go)
A unit price of gas in peb the sender will pay for a transaction fee. The amount of transaction fee is calculated as gas * gasPrice. For example, if the transaction consumes 10 units of gas and gasPrice is 10^18, the transaction fee will be 10 KLAY. See Unit of KLAY.
gas
uint64 (Go)
The maximum amount of gas the transaction is allowed to use.
to
*common.Address (Go)
The account address that will receive the transferred value. Currently, this value must be nil. Specifying the address will be supported in the future.
value
*big.Int (Go)
The amount of KLAY in peb to be transferred.
from
common.Address (Go)
The address of the sender. For more details, see Signature Validation of Transactions.
input
[]byte (Go)
Data attached to the transaction, used for transaction execution.
humanReadable
bool (Go)
This must be false since human-readable address is not supported yet. If true, the transaction will be rejected.
codeFormat
uint8 (Go)
The code format of smart contract code. The supported value for now is EVM(0x00) only.
txSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The sender's signatures. For more details, see Signature Validation of Transactions.
feePayer
common.Address (Go)
The address of the fee payer.
feePayerSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The fee payer's signatures.
RLP Encoding for Signature of the Sender
To make a signature of the sender, RLP serialization should be done like the following:
SigRLP = encode([encode([type, nonce, gasPrice, gas, to, value, from, input, humanReadable, codeFormat]), chainid, 0, 0])
SigHash = keccak256(SigRLP)
Signature = sign(SigHash, <the sender's private key>)
RLP Encoding for Signature of the Fee Payer
To make a signature of the fee payer, RLP serialization should be done like the following:
SigFeePayerRLP = encode([encode([type, nonce, gasPrice, gas, to, value, from, input, humanReadable, codeFormat]), feePayer, chainid, 0, 0])
SigFeePayerHash = keccak256(SigFeePayerRLP)
SignatureFeePayer = sign(SigFeePayerHash, <the fee payer's private key>)
RLP Encoding for SenderTxHash
To make a SenderTxHash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
SenderTxHashRLP = type + encode([nonce, gasPrice, gas, to, value, from, input,humanReadable, codeFormat, txSignatures])
SenderTxHash = keccak256(SenderTxHashRLP)
RLP Encoding for Transaction Hash
To make a transaction hash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
feePayerSignatures (a single signature) = [[v, r, s]]
feePayerSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
TxHashRLP = type + encode([nonce, gasPrice, gas, to, value, from, input, humanReadable, codeFormat, txSignatures, feePayer, feePayerSignatures])
TxHash = keccak256(TxHashRLP)
RLP Encoding (Example)
The following shows the result of RLP serialization and the transaction object:
ChainID 0x1
PrivateKey 0x45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8
PublicKey.X 0x3a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33d
PublicKey.Y 0x8072e77939dc03ba44790779b7a1025baf3003f6732430e20cd9b76d953391b3
SigRLP 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
SigHash 0xfd5e0726c763d117d07e5e688889ab7e4d0d1164d1bbca26a9d4ee629cbd875b
Signature f845f84325a04ea37b8ecfed93795a9f99b1e4d554df6fb05a361965a7655abd4e4c4422a9e5a00b05e3fffe5a3c0892eaff31466f6c47b7edad80703d395d65bbfc1a2c6a2570
FeePayerPrivateKey 0xb9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936
FeePayerPublicKey.X 0x327434d4cfc66ef8857d431419e9deebdc53a3e415edcc55382e2d417b8dd102
FeePayerPublicKey.Y 0x65fc97045707faf7b8f81ac65089d4cc71f69ad0bf1bc8559bc24f13fc284ced
SigRLPFeePayer 0xf90255b9023af90237298204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0bb901fe608060405234801561001057600080fd5b506101de806100206000396000f3006080604052600436106100615763ffffffff7c01000000000000000000000000000000000000000000000000000000006000350416631a39d8ef81146100805780636353586b146100a757806370a08231146100ca578063fd6b7ef8146100f8575b3360009081526001602052604081208054349081019091558154019055005b34801561008c57600080fd5b5061009561010d565b60408051918252519081900360200190f35b6100c873ffffffffffffffffffffffffffffffffffffffff60043516610113565b005b3480156100d657600080fd5b5061009573ffffffffffffffffffffffffffffffffffffffff60043516610147565b34801561010457600080fd5b506100c8610159565b60005481565b73ffffffffffffffffffffffffffffffffffffffff1660009081526001602052604081208054349081019091558154019055565b60016020526000908152604090205481565b336000908152600160205260408120805490829055908111156101af57604051339082156108fc029083906000818181858888f193505050501561019c576101af565b3360009081526001602052604090208190555b505600a165627a7a72305820627ca46bb09478a015762806cc00c431230501118c7c26c30ac58c4e09e51c4f00290180945a0043070275d9f6054307ee7348bd660849d90f018080
SigHashFeePayer 0xb7ea4d9d8c4d20ac6fd6cfffcaf89ae7d217d7450820b3b40d9ea29a0f01a1b2
SignatureFeePayer f845f84326a0c6738376304dfb32c77649bddd4ade925b947876cfe6b1fd2c06a2e4394504cca023817ba66a6b7c92fcf23f2d5506ea2a673aae5f1a1e4d742367971ae58a1576
TxHashRLP 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
TxHash a457cc54b5cfd35eb61baa5ad61398fdcecab4c83693815addf00ca7166cb87e
SenderTxHashRLP 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
SenderTxHash f3bca26fc8b50bfbcc1e94bc792ee6489cff14056e7e9aa2b074abb385f2139f
​
    TX(a457cc54b5cfd35eb61baa5ad61398fdcecab4c83693815addf00ca7166cb87e)
    Type:          TxTypeFeeDelegatedSmartContractDeploy
    From:          0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B
    To:            0x7b65B75d204aBed71587c9E519a89277766EE1d0
    Nonce:         1234
    GasPrice:      0x19
    GasLimit:      0xf4240
    Value:         0xa
    Data:          363038303630343035323334383031353631303031303537363030303830666435623530363130316465383036313030323036303030333936303030663330303630383036303430353236303034333631303631303036313537363366666666666666663763303130303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303630303033353034313636333161333964386566383131343631303038303537383036333633353335383662313436313030613735373830363337306130383233313134363130306361353738303633666436623765663831343631303066383537356233333630303039303831353236303031363032303532363034303831323038303534333439303831303139303931353538313534303139303535303035623334383031353631303038633537363030303830666435623530363130303935363130313064353635623630343038303531393138323532353139303831393030333630323030313930663335623631303063383733666666666666666666666666666666666666666666666666666666666666666666666666666666663630303433353136363130313133353635623030356233343830313536313030643635373630303038306664356235303631303039353733666666666666666666666666666666666666666666666666666666666666666666666666666666663630303433353136363130313437353635623334383031353631303130343537363030303830666435623530363130306338363130313539353635623630303035343831353635623733666666666666666666666666666666666666666666666666666666666666666666666666666666663136363030303930383135323630303136303230353236303430383132303830353433343930383130313930393135353831353430313930353535363562363030313630323035323630303039303831353236303430393032303534383135363562333336303030393038313532363030313630323035323630343038313230383035343930383239303535393038313131313536313031616635373630343035313333393038323135363130386663303239303833393036303030383138313831383538383838663139333530353035303530313536313031396335373631303161663536356233333630303039303831353236303031363032303532363034303930323038313930353535623530353630306131363536323761376137323330353832303632376361343662623039343738613031353736323830366363303063343331323330353031313138633763323663333061633538633465303965353163346630303239
    HumanReadable: true
    CodeFormat:    CodeFormatEVM
    Signature:     [{"V":"0x25","R":"0x4ea37b8ecfed93795a9f99b1e4d554df6fb05a361965a7655abd4e4c4422a9e5","S":"0xb05e3fffe5a3c0892eaff31466f6c47b7edad80703d395d65bbfc1a2c6a2570"}]
    FeePayer:      0x5A0043070275d9f6054307Ee7348bD660849D90f
    FeePayerSig:   [{"V":"0x26","R":"0xc6738376304dfb32c77649bddd4ade925b947876cfe6b1fd2c06a2e4394504cc","S":"0x23817ba66a6b7c92fcf23f2d5506ea2a673aae5f1a1e4d742367971ae58a1576"}]
    Hex:           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
RPC Output (Example)
The following shows a transaction object returned via JSON RPC.
{
  "blockHash": "0x82983fe294d286e76486760e6904369285554e1744af16786c2393a956fb4ec4",
  "blockNumber": "0x2",
  "codeFormat": "0x0",
  "contractAddress": "0x636f6e7472616374322e6b6c6179746e00000000",
  "feePayer": "0x029fdce0457db02f05c4be9f67b7115cb8ea15ca",
  "feePayerSignatures": [
    {
      "V": "0x25",
      "R": "0x614fd887f4702627156132c9d56584207d1eaff529ee2967431eeaba924678f9",
      "S": "0x6b883a4467ca95a0ee75567062cb6d35629e9a22faeb8a711896488ce2cc4ed9"
    }
  ],
  "from": "0x0fcda0f2efbe1b4e61b487701ce4f2f8abc3723d",
  "gas": "0x174876e800",
  "gasPrice": "0x0",
  "gasUsed": "0xee6e5b4d",
  "humanReadable": true,
  "input": "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",
  "logs": [],
  "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "nonce": "0xb",
  "senderTxHash": "0xf8f83c7a4a334430f403b20d84db492fac43ebabbd9676d731e11460d01a2160",
  "signatures": [
    {
      "V": "0x26",
      "R": "0xf3c521fea307b39bfa914b4835112bad18f89a627d639ddabe70c20af99d29a5",
      "S": "0x5179048cf993049b380f8cf7017c6e83b23da7883d2728208fe6161808594f44"
    }
  ],
  "status": "0x1",
  "to": "0x636f6e7472616374322e6b6c6179746e00000000",
  "transactionHash": "0x39b8a31f0c02a951615e3497d68a6534b8c8cc565e514ceafec53ee7ff50b8d9",
  "transactionIndex": "0x4",
  "type": "TxTypeFeeDelegatedSmartContractDeploy",
  "typeInt": 41,
  "value": "0x0"
}
TxTypeFeeDelegatedSmartContractExecution
TxTypeFeeDelegatedSmartContractExecution executes a smart contract with the given data in input. Fee will be paid by the given fee payer. TxTypeFeeDelegatedSmartContractExecution is accepted only if to is a smart contract account. To transfer KLAY to an externally owned account, use TxTypeFeeDelegatedValueTransfer instead. The following changes will be made by this transaction type.
1.If to is a smart contract account, the code is executed based on input. Otherwise, this transaction will be rejected.
2.The fee payer's balance decreases by the amount of the transaction fee.
3.The sender's nonce increases by one.
4.If value was provided, value KLAY is transferred from the sender to the to smart contract. The contract should have a payable fallback function to receive KLAY.
Attributes
Attribute
Type
Description
type
uint8 (Go)
The type of TxTypeFeeDelegatedSmartContractExecution. This must be 0x31.
nonce
uint64 (Go)
A value used to uniquely identify a sender’s transaction. If two transactions with the same nonce are generated by a sender, only one is executed.
gasPrice
*big.Int (Go)
A unit price of gas in peb the sender will pay for a transaction fee. The amount of transaction fee is calculated as gas * gasPrice. For example, if the transaction consumes 10 units of gas and gasPrice is 10^18, the transaction fee will be 10 KLAY. See Unit of KLAY.
gas
uint64 (Go)
The maximum amount of gas the transaction is allowed to use.
to
common.Address (Go)
The address of the smart contract account to be executed.
value
*big.Int (Go)
The amount of KLAY in peb to be transferred.
from
common.Address (Go)
The address of the sender. For more details, see Signature Validation of Transactions.
input
[]byte (Go)
Data attached to the transaction, used for transaction execution.
txSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The sender's signatures. For more details, see Signature Validation of Transactions.
feePayer
common.Address (Go)
The address of the fee payer.
feePayerSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The fee payer's signatures.
RLP Encoding for Signature of the Sender
To make a signature of the sender, RLP serialization should be done like the following:
SigRLP = encode([encode([type, nonce, gasPrice, gas, to, value, from, input]), chainid, 0, 0])
SigHash = keccak256(SigRLP)
Signature = sign(SigHash, <the sender's private key>)
RLP Encoding for Signature of the Fee Payer
To make a signature of the fee payer, RLP serialization should be done like the following:
SigFeePayerRLP = encode([encode([type, nonce, gasPrice, gas, to, value, from, input]), feePayer, chainid, 0, 0])
SigFeePayerHash = keccak256(SigFeePayerRLP)
SignatureFeePayer = sign(SigFeePayerHash, <the fee payer's private key>)
RLP Encoding for SenderTxHash
To make a SenderTxHash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
SenderTxHashRLP = type + encode([nonce, gasPrice, gas, to, value, from, input, txSignatures])
SenderTxHash = keccak256(SenderTxHashRLP)
RLP Encoding for Transaction Hash
To make a transaction hash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
feePayerSignatures (a single signature) = [[v, r, s]]
feePayerSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
TxHashRLP = type + encode([nonce, gasPrice, gas, to, value, from, input, txSignatures, feePayer, feePayerSignatures])
TxHash = keccak256(TxHashRLP)
RLP Encoding (Example)
The following shows the result of RLP serialization and the transaction object:
ChainID 0x1
PrivateKey 0x45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8
PublicKey.X 0x3a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33d
PublicKey.Y 0x8072e77939dc03ba44790779b7a1025baf3003f6732430e20cd9b76d953391b3
SigRLP 0xf860b85bf859318204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0ba46353586b000000000000000000000000bc5951f055a85f41a3b62fd6f68ab7de76d299b2018080
SigHash 0xa5dd93af9f96fa316f0ddd84f10acb2e6eb41baaec3b42f9068c38aa1618f7e1
Signature f845f84325a0253aea7d2c37160da45e84afbb45f6b3341cf1e8fc2df4ecc78f14adb512dc4fa022465b74015c2a8f8501186bb5e200e6ce44be52e9374615a7e7e21c41bc27b5
FeePayerPrivateKey 0xb9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936
FeePayerPublicKey.X 0x327434d4cfc66ef8857d431419e9deebdc53a3e415edcc55382e2d417b8dd102
FeePayerPublicKey.Y 0x65fc97045707faf7b8f81ac65089d4cc71f69ad0bf1bc8559bc24f13fc284ced
SigRLPFeePayer 0xf875b85bf859318204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0ba46353586b000000000000000000000000bc5951f055a85f41a3b62fd6f68ab7de76d299b2945a0043070275d9f6054307ee7348bd660849d90f018080
SigHashFeePayer 0xf547d9d0041912e0daa2db2b65170a9e833877cd8482f405a11b03429fcbd554
SignatureFeePayer f845f84326a0e7c51db7b922c6fa2a941c9687884c593b1b13076bdf0c473538d826bf7b9d1aa05b0de2aabb84b66db8bf52d62f3d3b71b592e3748455630f1504c20073624d80
TxHashRLP 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
TxHash ef46f28c54b3d90a183e26f406ca1d5cc2b6e9fbb6cfa7c85a10330ffadf54b0
SenderTxHashRLP 0x31f89f8204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0ba46353586b000000000000000000000000bc5951f055a85f41a3b62fd6f68ab7de76d299b2f845f84325a0253aea7d2c37160da45e84afbb45f6b3341cf1e8fc2df4ecc78f14adb512dc4fa022465b74015c2a8f8501186bb5e200e6ce44be52e9374615a7e7e21c41bc27b5
SenderTxHash 3cd3380f4206943422d5d5b218dd66d03d60d19a109f9929ea12b52a230257cb
​
    TX(ef46f28c54b3d90a183e26f406ca1d5cc2b6e9fbb6cfa7c85a10330ffadf54b0)
    Type:          TxTypeFeeDelegatedSmartContractExecution
    From:          0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B
    To:            0x7b65B75d204aBed71587c9E519a89277766EE1d0
    Nonce:         1234
    GasPrice:      0x19
    GasLimit:      0xf4240
    Value:         0xa
    Data:          363335333538366230303030303030303030303030303030303030303030303062633539353166303535613835663431613362363266643666363861623764653736643239396232
    Signature:     [{"V":"0x25","R":"0x253aea7d2c37160da45e84afbb45f6b3341cf1e8fc2df4ecc78f14adb512dc4f","S":"0x22465b74015c2a8f8501186bb5e200e6ce44be52e9374615a7e7e21c41bc27b5"}]
    FeePayer:      0x5A0043070275d9f6054307Ee7348bD660849D90f
    FeePayerSig:   [{"V":"0x26","R":"0xe7c51db7b922c6fa2a941c9687884c593b1b13076bdf0c473538d826bf7b9d1a","S":"0x5b0de2aabb84b66db8bf52d62f3d3b71b592e3748455630f1504c20073624d80"}]
    Hex:           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
RPC Output (Example)
The following shows a transaction object returned via JSON RPC.
{
  "blockHash": "0x82983fe294d286e76486760e6904369285554e1744af16786c2393a956fb4ec4",
  "blockNumber": "0x2",
  "contractAddress": null,
  "feePayer": "0x029fdce0457db02f05c4be9f67b7115cb8ea15ca",
  "feePayerSignatures": [
    {
      "V": "0x25",
      "R": "0x1c7de2c83542b623ba47722f310c0e5893486eef4eed70b634d456262fb430a7",
      "S": "0x177929c52669c4b9433565a76e53723b702bae8142debe1981062f59f25062ab"
    }
  ],
  "from": "0x0fcda0f2efbe1b4e61b487701ce4f2f8abc3723d",
  "gas": "0x174876e800",
  "gasPrice": "0x0",
  "gasUsed": "0xb0bc",
  "input": "0x6353586b0000000000000000000000000fcda0f2efbe1b4e61b487701ce4f2f8abc3723d",
  "logs": [],
  "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "nonce": "0xe",
  "senderTxHash": "0xffd354e4e271ff94a7459c2f1bc0df20dc112a83f5625ff7e31d196444f72710",
  "signatures": [
    {
      "V": "0x25",
      "R": "0xefc6fec3dae47a08941712f637c95dbc46ef2afd3d16e68da602a878c0bba047",
      "S": "0x938a5374edcea0503df8e7af906a7642f7e935eab7c489b7ca8b976a8e5ab7e"
    }
  ],
  "status": "0x1",
  "to": "0x636f6e74726163742e6b6c6179746e0000000000",
  "transactionHash": "0x658a118112ffb0c06adecd59b0f11b58cf7d8afd7ec5e5d323cfca021c3dcb37",
  "transactionIndex": "0x7",
  "type": "TxTypeFeeDelegatedSmartContractExecution",
  "typeInt": 49,
  "value": "0xa"
}
TxTypeFeeDelegatedAccountUpdate
TxTypeFeeDelegatedAccountUpdate updates the key of the given account. The transaction fee is paid by the fee payer. The following changes will take place by this transaction type.
1.The fee payer's balance decreases by the amount of the transaction fee.
2.The sender's nonce increases by one.
3.The account's key is updated with key.
4.Once this type of transaction is executed, transactions sent from the account afterward will be validated with the new key.
5.The transaction fee is paid by the fee payer.
Attributes
Attribute
Type
Description
type
uint8 (Go)
The type of TxTypeAccountUpdate. This must be 0x21.
nonce
uint64 (Go)
A value used to uniquely identify a sender’s transaction. If two transactions with the same nonce are generated by a sender, only one is executed.
gasPrice
*big.Int (Go)
A multiplier to get how much the sender will pay in tokens. The amount of tokens the sender will pay is calculated via gas * gasPrice. For example, the sender will pay 10 KLAY for a transaction fee if gas is 10 and gasPrice is 10^18. See Unit of KLAY.
gas
uint64 (Go)
The maximum amount of transaction fee the transaction is allowed to use.
from
common.Address (Go)
The address of the sender. For more details, see Signature Validation of Transactions.
key
AccountKey (Go)
​AccountKey to be updated to the account.
txSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The sender's signatures. For more details, see Signature Validation of Transactions.
feePayer
common.Address (Go)
The address of the fee payer.
feePayerSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The fee payer's signatures.
RLP Encoding for Signature of the Sender
To make a signature of the sender, RLP serialization should be done like the following:
SigRLP = encode([encode([type, nonce, gasPrice, gas, from, rlpEncodedKey]), chainid, 0, 0])`
SigHash = keccak256(SigRLP)
Signature = sign(SigHash, <the sender's private key>)
RLP Encoding for Signature of the Fee Payer
To make a signature of the fee payer, RLP serialization should be done like the following:
SigFeePayerRLP = encode([encode([type, nonce, gasPrice, gas, from, rlpEncodedKey]), feePayer, chainid, 0, 0])
SigFeePayerHash = keccak256(SigFeePayerRLP)
SignatureFeePayer = sign(SigFeePayerHash, <the fee payer's private key>)
RLP Encoding for SenderTxHash
To make a SenderTxHash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
SenderTxHashRLP = type + encode([nonce, gasPrice, gas, from, rlpEncodedKey, txSignatures])
SenderTxHash = keccak256(SenderTxHashRLP)
RLP Encoding for Transaction Hash
To make a transaction hash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
feePayerSignatures (a single signature) = [[v, r, s]]
feePayerSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
TxHashRLP = type + encode([nonce, gasPrice, gas, from, rlpEncodedKey, txSignatures, feePayer, feePayerSignatures])
TxHash = keccak256(TxHashRLP)
RLP Encoding (Example)
The following shows the result of RLP serialization and the transaction object:
ChainID 0x1
PrivateKey 0x45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8
PublicKey.X 0x3a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33d
PublicKey.Y 0x8072e77939dc03ba44790779b7a1025baf3003f6732430e20cd9b76d953391b3
SigRLP 0xf849b844f842218204d219830f424094a94f5374fce5edbc8e2a8697c15331677e6ebf0ba302a1033a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33d018080
SigHash 0x78437953e6beb985ea3ccbee8d6a648a09d11249389477a32c7094fc7b8765ef
Signature f845f84326a0ab69d9adca15d9763c4ce6f98b35256717c6e932007658f19c5a255de9e70ddaa026aa676a3a1a6e96aff4a3df2335788d614d54fb4db1c3c48551ce1fa7ac5e52
FeePayerPrivateKey 0xb9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936
FeePayerPublicKey.X 0x327434d4cfc66ef8857d431419e9deebdc53a3e415edcc55382e2d417b8dd102
FeePayerPublicKey.Y 0x65fc97045707faf7b8f81ac65089d4cc71f69ad0bf1bc8559bc24f13fc284ced
SigRLPFeePayer 0xf85eb844f842218204d219830f424094a94f5374fce5edbc8e2a8697c15331677e6ebf0ba302a1033a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33d945a0043070275d9f6054307ee7348bd660849d90f018080
SigHashFeePayer 0x1026d3ac74f56b52453d656b084d06798479b8bcfda1868d8beaa23e36f3aeb3
SignatureFeePayer f845f84326a0f295cd69b4144d9dbc906ba144933d2cc535d9d559f7a92b4672cc5485bf3a60a0784b8060234ffd64739b5fc2f2503939340ab4248feaa6efcf62cb874345fe40
TxHashRLP 0x21f8e48204d219830f424094a94f5374fce5edbc8e2a8697c15331677e6ebf0ba302a1033a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33df845f84326a0ab69d9adca15d9763c4ce6f98b35256717c6e932007658f19c5a255de9e70ddaa026aa676a3a1a6e96aff4a3df2335788d614d54fb4db1c3c48551ce1fa7ac5e52945a0043070275d9f6054307ee7348bd660849d90ff845f84326a0f295cd69b4144d9dbc906ba144933d2cc535d9d559f7a92b4672cc5485bf3a60a0784b8060234ffd64739b5fc2f2503939340ab4248feaa6efcf62cb874345fe40
TxHash 756ff5d3912a4089659614d42a218eee59e602a5992bddca383c2d295c6637bb
SenderTxHashRLP 0x21f8888204d219830f424094a94f5374fce5edbc8e2a8697c15331677e6ebf0ba302a1033a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33df845f84326a0ab69d9adca15d9763c4ce6f98b35256717c6e932007658f19c5a255de9e70ddaa026aa676a3a1a6e96aff4a3df2335788d614d54fb4db1c3c48551ce1fa7ac5e52
SenderTxHash f56937017bd3b75c637ba5b4ce90df20c166006a2a529b42e808bc806159b98f
​
    TX(756ff5d3912a4089659614d42a218eee59e602a5992bddca383c2d295c6637bb)
    Type:          TxTypeFeeDelegatedAccountUpdate
    From:          0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B
    Nonce:         1234
    GasPrice:      0x19
    GasLimit:      0xf4240
    Key:           AccountKeyPublic: S256Pubkey:{"x":"0x3a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33d","y":"0x8072e77939dc03ba44790779b7a1025baf3003f6732430e20cd9b76d953391b3"}
    Signature:     [{"V":"0x26","R":"0xab69d9adca15d9763c4ce6f98b35256717c6e932007658f19c5a255de9e70dda","S":"0x26aa676a3a1a6e96aff4a3df2335788d614d54fb4db1c3c48551ce1fa7ac5e52"}]
    FeePayer:      0x5A0043070275d9f6054307Ee7348bD660849D90f
    FeePayerSig:   [{"V":"0x26","R":"0xf295cd69b4144d9dbc906ba144933d2cc535d9d559f7a92b4672cc5485bf3a60","S":"0x784b8060234ffd64739b5fc2f2503939340ab4248feaa6efcf62cb874345fe40"}]
    Hex:           21f8e48204d219830f424094a94f5374fce5edbc8e2a8697c15331677e6ebf0ba302a1033a514176466fa815ed481ffad09110a2d344f6c9b78c1d14afc351c3a51be33df845f84326a0ab69d9adca15d9763c4ce6f98b35256717c6e932007658f19c5a255de9e70ddaa026aa676a3a1a6e96aff4a3df2335788d614d54fb4db1c3c48551ce1fa7ac5e52945a0043070275d9f6054307ee7348bd660849d90ff845f84326a0f295cd69b4144d9dbc906ba144933d2cc535d9d559f7a92b4672cc5485bf3a60a0784b8060234ffd64739b5fc2f2503939340ab4248feaa6efcf62cb874345fe40
RPC Output (Example)
The following shows a transaction object returned via JSON RPC.
{
  "blockHash": "0x82983fe294d286e76486760e6904369285554e1744af16786c2393a956fb4ec4",
  "blockNumber": "0x2",
  "contractAddress": null,
  "feePayer": "0x0fcda0f2efbe1b4e61b487701ce4f2f8abc3723d",
  "feePayerSignatures": [
    {
      "V": "0x25",
      "R": "0x3b019642e5ae37f3ecbf85e6fc1ee77e51d1618299367bcedd816d0da6afb1e0",
      "S": "0x5c12c87811a74183f8b56b707fa90a916b1c641652c93e52300f5cee36141d73"
    }
  ],
  "from": "0x636f6c696e322e6b6c6179746e00000000000000",
  "gas": "0x174876e800",
  "gasPrice": "0x5d21dba00",
  "gasUsed": "0xc738",
  "key": "0x02a1034ef27ba4b7d1ae09b166744c5b7ee4a7a0cc5c76b2e5d74523a0a4fb56db3191",
  "logs": [],
  "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "nonce": "0x0",
  "senderTxHash": "0xf4e7ef082451d4a3c8ad7c4348fc99c965a9c130bfc98d7971f3103e3dcfda3c",
  "signatures": [
    {
      "V": "0x26",
      "R": "0xd4cb16abcdf92969dc45efacaa5827ad55738fbda08a3dbaf0f0553643084a6",
      "S": "0x23f8055933b416cf15568a017e0a11e0a5c0a8f65477f6ec71de0bf837f4a681"
    }
  ],
  "status": "0x1",
  "transactionHash": "0xeb0c14d903db38deee116ac8a0d620e6ca6aa79e4f91393abbddfa30810b9d43",
  "transactionIndex": "0x2",
  "type": "TxTypeFeeDelegatedAccountUpdate",
  "typeInt": 33
},
TxTypeFeeDelegatedCancel
TxTypeFeeDelegatedCancel cancels the execution of the transaction with the same nonce in the transaction pool. For more details, see TxTypeCancel.
The following changes will apply by this transaction type. 1. The fee payer's balance decreases by the amount of the transaction fee. 2. The sender's nonce increases by one.
Attributes
Attribute
Type
Description
type
uint8 (Go)
The type of TxTypeCancel. This must be 0x39.
nonce
uint64 (Go)
A value used to uniquely identify a sender’s transaction. If two transactions with the same nonce are generated by a sender, only one is executed.
gasPrice
*big.Int (Go)
A unit price of gas in peb the sender will pay for a transaction fee. The amount of transaction fee is calculated as gas * gasPrice. For example, if the transaction consumes 10 units of gas and gasPrice is 10^18, the transaction fee will be 10 KLAY. See Unit of KLAY.
gas
uint64 (Go)
The maximum amount of transaction fee the transaction is allowed to use.
from
common.Address (Go)
The address of the sender. For more details, see Signature Validation of Transactions.
txSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The sender's signatures. For more details, see Signature Validation of Transactions.
feePayer
common.Address (Go)
The address of the fee payer.
feePayerSignatures
[]{*big.Int, *big.Int, *big.Int} (Go)
The fee payer's signatures.
RLP Encoding for Signature of the Sender
To make a signature of the sender, RLP serialization should be done like the following:
SigRLP = encode([encode([type, nonce, gasPrice, gas, from]), chainid, 0, 0])
SigHash = keccak256(SigRLP)
Signature = sign(SigHash, <the sender's private key>)
RLP Encoding for Signature of the Fee Payer
To make a signature of the fee payer, RLP serialization should be done like the following:
SigFeePayerRLP = encode([encode([type, nonce, gasPrice, gas, from]), feePayer, chainid, 0, 0])
SigFeePayerHash = keccak256(SigFeePayerRLP)
SignatureFeePayer = sign(SigFeePayerHash, <the fee payer's private key>)
RLP Encoding for SenderTxHash
To make a SenderTxHash, RLP serialization should be done like the following:
txSignatures (a single signature) = [[v, r, s]]
txSignatures (two signatures) = [[v1, r1, s1], [v2, r2, s2]]
SenderTxHashRLP = type + encode([nonce, gasPrice, gas, from, txSignatures])
SenderTxHash = keccak256(SenderTxHashRLP)
RLP Encoding for Transaction Hash
To make a 