feat(da): added commitment type and additional comments

proto/gen.sh

@@ -29,7 +29,11 @@ done
 cd $SCRIPT_DIR
 mkdir -p ./proto/pb
 rm -rf $TARGET_DIR/*
-docker run -v $PWD:/workspace --workdir /workspace tendermintdev/docker-build-proto sh ./proto/protoc.sh
+
+protoVer=v0.7
+protoImageName=tendermintdev/sdk-proto-gen:$protoVer
+
+docker run -v $PWD:/workspace --workdir /workspace $protoImageName sh ./proto/protoc.sh
 
 # Copy the generated files to the target directories 
 for TARGET_DIR in $TARGETS; do

proto/types/interchain_da/da.proto

@@ -6,6 +6,7 @@ package dymension.interchain_da;
 
 import "gogoproto/gogo.proto";
 import "types/cosmos/base/v1beta1/coin.proto";
+import "types/tendermint/crypto/proof.proto";
 
 option go_package = "github.com/dymensionxyz/dymint/types/pb/interchain_da";
 
@@ -16,7 +17,10 @@ message Params {
   cosmos.base.v1beta1.Coin cost_per_byte = 1 [ (gogoproto.nullable) = false ];
   // MaxBlobSize is the hard cap of how many bytes a blob can be.
   uint32 max_blob_size = 2;
-  // DisputePeriod is the number of blocks the blob is stored for.
+  // DisputePeriod is the number of blocks the blob is stored for. In the
+  // current implementation, the dispute period equals the store time. Meaning,
+  // a dispute can't be submitted after the dispute period is over because both
+  // the blob and the metadata are pruned.
   uint64 dispute_period = 3;
 }
 
@@ -25,3 +29,17 @@ message BlobMetadata {
   // BlobHash is the hash of the submitted blob.
   string blob_hash = 1;
 }
+
+// Commitment defines the commitment type used by the InterchainDALayer.
+message Commitment {
+  // ClientID identifies the client_id of the DA chain where the blob was posted.
+  string client_id = 1;
+  // BlobHeight identifies the height at which the blob was posted.
+  uint64 blob_height = 2;
+  // BlobHash is the hash of the submitted blob.
+  string blob_hash = 3;
+  // BlobID is the unique ID of the blob.
+  uint64 blob_id = 4;
+  // MerkleProof is a merkle inclusion proof of the blob.
+  tendermint.crypto.ProofOps merkle_proof = 5;
+}