Data
Data transaction sets data entries in sender's account data storage.
JSON
{
"type": 12,
"version": 3,
"id": "8M6dgn85eh3bsHrVhWng8FNaHBcHEJD4MPZ5ZzCciyon",
"sender": "3Jq8mnhRquuXCiFUwTLZFVSzmQt3Fu6F7HQ",
"senderKeyType": "ed25519",
"senderPublicKey": "AJVNfYjTvDD2GWKPejHbKPLxdvwXjAnhJzo6KCv17nne",
"fee": 14000000,
"timestamp": 1610397549043,
"data": [
{
"type": "boolean",
"value": true,
"key": "bool"
},
{
"type": "binary",
"value": "base64:SGVsbG8gV2F2ZXM=",
"key": "bin"
},
{
"type": "integer",
"value": 1234567,
"key": "int"
},
{
"type": "string",
"value": "some text",
"key": "str"
}
],
"proofs": [
"4aMwABCZwtXrGGKmBdHdR5VVFqG51v5dPoyfDVZ7jfgD3jqc851ME5QkToQdfSRTqQmvnB9YT4tCBPcMzi59fZye"
],
"height": 1069662
}
Data entries
Data entries are one of 4 types: "boolean", "integer", "string", and "binary". A data transaction can have a maximum of 100 data entries.
In JSON, the value of a binary data entry must be base64 encoded and prefixed with "base64:"
. The value of the integer type is a signed long (8 bytes).
Fees
The fees of a data transaction are determined by the size of the data entries. The base fee is 1 LTO, with an additional fee of 0.1 LTO per 256 bytes.
Binary schema
The binary data structure of the unsigned transaction.
1
Transaction type
Byte (constant, value=12)
1
2
Version
Byte (constant, value=3)
1
3
Network id
Byte
1
4
Timestamp
Long
8
5
Sender's key type
KeyType (Byte)
1
6
Sender's public key
PublicKey (Array[Byte])
32 | 33
7
Fee
Long
8
8
Number of entries
Short
2
9
Entry 1
...
Binary schema of data entries
The encoding of a data entry depends on the type.
Integer
Type
Byte (constant, value=0)
1
Value
Long
8
Boolean
Type
Byte (constant, value=1)
1
Value
Byte
1
Binary
Type
Byte (constant, value=2)
1
Length (N)
Short
2
Value
Array[Byte]
N
String
Type
Byte (constant, value=3)
1
Length (N)
Short
2
Value
String (UTF-8)
N
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