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IPFS Transaction

This transaction type utilizes a special data field similar to the vendor field to store Interplanetary File System data on the blockchain. This provides an easy way to timestamp and optionally encrypt and verify files. This implementation of the IPFS transaction type won’t allow storing data on the blockchain - for that, special IPFS nodes are needed.

References
ARK Improvement Proposals AIP11, AIP29
API Endpoints Link
AJV Schema Base | IPFS Transaction

Transaction Structure

Signed JSON Payload

{
    "version": 2,
    "network": 23,
    "type": 5,
    "nonce": "2",
    "senderPublicKey": "038e000c902d4551065ac5705637c685d52e6ac4032e158ad0370c5ef2bbafae2c",
    "fee": "500000000",
    "amount": "0",
    "asset": {
        "ipfs": "QmYSK2JyM3RyDyB52caZCTKFR3HKniEcMnNJYdk8DQ6KKB"
    },
    "signature": "ed8e729b40e73ab86c3b6675d463c19d88495bf4e091037e80352afe0ea29efff04d2667bfe8d78e5c4ad410fb0f7a0f511fbd657a54181aca8de4e8c6ebfe2c",
    "id": "77d8134144780e50db71adb496e02bcbde43e76a0cd7eeae7ff3641db75187ec",
}

Serialized Payload

ff02170100000005000200000000000000038e000c902d4551065ac5705637c685d52e6ac4032e158ad0370c5ef2bbafae2c0065cd1d000000000012209608184d6cee2b9af8e6c2a46fc9318adf73329aeb8a86cf8472829fff5bb89eed8e729b40e73ab86c3b6675d463c19d88495bf4e091037e80352afe0ea29efff04d2667bfe8d78e5c4ad410fb0f7a0f511fbd657a54181aca8de4e8c6ebfe2c

Deserialized Hex Payload

Key Pos. Size (bytes) Value (hex)
Header: [0] 1 0xff
Version: [1] 1 0x02
Network: [2] 1 0x17
TypeGroup: [3] 4 0x01000000
Type: [7] 2 0x0500
Nonce: [9] 8 0x0200000000000000
SenderPublicKey: [17] 33 0x038e000c902d4551065ac5705637c685d52e6ac4032e158ad0370c5ef2bbafae2c
Fee: [50] 8 0x0065cd1d00000000
VendorField Length: [58] 1 0x00
IPFS Hash: [59] 34 0x12209608184d6cee2b9af8e6c2a46fc9318adf73329aeb8a86cf8472829fff5bb89e
Signature: [93] 64 0xed8e729b40e73ab86c3b6675d463c19d88495bf4e091037e80352afe0ea29efff04d2667bfe8d78e5c4ad410fb0f7a0f511fbd657a54181aca8de4e8c6ebfe2c

IPFS Hash Breakdown

Item Length Value
IPFS Hash 46 (chars) QmYSK2JyM3RyDyB52caZCTKFR3HKniEcMnNJYdk8DQ6KKB
Decoded Base58 34 (bytes) 0x12209608184d6cee2b9af8e6c2a46fc9318adf73329aeb8a86cf8472829fff5bb89e
Hash Type 1 (byte) 0x12
Hash Length 1 (byte) 0x20
32-Byte Hash 32 (bytes) 0x9608184d6cee2b9af8e6c2a46fc9318adf73329aeb8a86cf8472829fff5bb89e


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