Send DA Demo

Prerequisites

• View all broadcasting nodes

    go test -run TestGetBroadcastingNodes

• View all storage nodes

    go test -run TestGetStorageNodes

• Register nodeGroup

  Register the broadcasting node group and set the minimum number of signatures required. Their signatures will be needed when uploading commitments.

    go test -run TestCreateNodeGroup

• Register nameSpace

  This step is optional. If long-term storage is needed, specify the storage nodes and complete the registration.

    go test -run TestCreateNameSpace

Flow

1. Select your desired broadcasting nodes to register a nodeGroup and set the required minimum number of signatures.
2. If long-term storage is needed, you also need to register a nameSpace to specify the long-term storage nodes.
3. Pass in the SRS file path to initialize the kzg-sdk.
4. Use the SDK's GenerateDataCommitAndProof method with the DA data to generate commitments and proof.
5. Send the DA data, commitments, proof, and other information to the broadcast node to request a signature.
6. Send the obtained signature, commitments, and other information to the contract.(If long-term storage is not needed, please set nameSpaceId to 0.)

Terminology

• Commitment: A cryptographic construct used to commit to a value while keeping it hidden until later.
• Proof: A piece of evidence or a demonstration that something is true or valid.
• nodeGroup: Group multiple broadcast nodes together and set the required minimum number of signatures.
• nameSpace: Group multiple storage nodes together to designate them for long-term storage.
• sender: Address of the user sending the DA data.
• index: Data index stored under the user's address.
• signature: Sign the specified data and broadcast the node's signature to indicate receipt and temporary storage of DA data.

Contract

• CommitmentManager 0xa8ED...A724
  • Key Functions:
    • SubmitCommitment(): Submit commitment and signature information.
    • indices(): Get the current user's commitment index.
• NodeManager 0x97bE...67EC
  • Key Functions:
    • RegisterBroadcastNode: Stake tokens to become a broadcast node.
    • RegisterStorageNode: Stake tokens to become a storage node.
• StorageManager 0x6642...30fe
  • Key Functions:
    • CreateNameSpace: Create a group of storage nodes for long-term data storage.
    • StoreAddressMapping: Create a group of broadcast nodes for signing, and set the required minimum number of signatures.