diff --git a/Makefile b/Makefile
index a105b6aac..0190af511 100644
--- a/Makefile
+++ b/Makefile
@@ -942,6 +942,10 @@ params_update_proof_proof_requirement_threshold: ## Update the proof module proo
 params_update_proof_proof_missing_penalty: ## Update the proof module proof_missing_penalty param
 	poktrolld tx authz exec ./tools/scripts/params/proof_proof_missing_penalty.json $(PARAM_FLAGS)
 
+.PHONY: params_update_proof_proof_submission_fee
+params_update_proof_proof_submission_fee: ## Update the proof module proof_submission_fee param
+	poktrolld tx authz exec ./tools/scripts/params/proof_proof_submission_fee.json $(PARAM_FLAGS)
+
 ### Shared Module Params ###
 .PHONY: params_update_shared_all
 params_update_shared_all: ## Update the session module params
diff --git a/api/poktroll/proof/params.pulsar.go b/api/poktroll/proof/params.pulsar.go
index 5733fc2f3..27f3273c8 100644
--- a/api/poktroll/proof/params.pulsar.go
+++ b/api/poktroll/proof/params.pulsar.go
@@ -23,6 +23,7 @@ var (
 	fd_Params_proof_request_probability    protoreflect.FieldDescriptor
 	fd_Params_proof_requirement_threshold  protoreflect.FieldDescriptor
 	fd_Params_proof_missing_penalty        protoreflect.FieldDescriptor
+	fd_Params_proof_submission_fee         protoreflect.FieldDescriptor
 )
 
 func init() {
@@ -32,6 +33,7 @@ func init() {
 	fd_Params_proof_request_probability = md_Params.Fields().ByName("proof_request_probability")
 	fd_Params_proof_requirement_threshold = md_Params.Fields().ByName("proof_requirement_threshold")
 	fd_Params_proof_missing_penalty = md_Params.Fields().ByName("proof_missing_penalty")
+	fd_Params_proof_submission_fee = md_Params.Fields().ByName("proof_submission_fee")
 }
 
 var _ protoreflect.Message = (*fastReflection_Params)(nil)
@@ -123,6 +125,12 @@ func (x *fastReflection_Params) Range(f func(protoreflect.FieldDescriptor, proto
 			return
 		}
 	}
+	if x.ProofSubmissionFee != nil {
+		value := protoreflect.ValueOfMessage(x.ProofSubmissionFee.ProtoReflect())
+		if !f(fd_Params_proof_submission_fee, value) {
+			return
+		}
+	}
 }
 
 // Has reports whether a field is populated.
@@ -146,6 +154,8 @@ func (x *fastReflection_Params) Has(fd protoreflect.FieldDescriptor) bool {
 		return x.ProofRequirementThreshold != uint64(0)
 	case "poktroll.proof.Params.proof_missing_penalty":
 		return x.ProofMissingPenalty != nil
+	case "poktroll.proof.Params.proof_submission_fee":
+		return x.ProofSubmissionFee != nil
 	default:
 		if fd.IsExtension() {
 			panic(fmt.Errorf("proto3 declared messages do not support extensions: poktroll.proof.Params"))
@@ -170,6 +180,8 @@ func (x *fastReflection_Params) Clear(fd protoreflect.FieldDescriptor) {
 		x.ProofRequirementThreshold = uint64(0)
 	case "poktroll.proof.Params.proof_missing_penalty":
 		x.ProofMissingPenalty = nil
+	case "poktroll.proof.Params.proof_submission_fee":
+		x.ProofSubmissionFee = nil
 	default:
 		if fd.IsExtension() {
 			panic(fmt.Errorf("proto3 declared messages do not support extensions: poktroll.proof.Params"))
@@ -198,6 +210,9 @@ func (x *fastReflection_Params) Get(descriptor protoreflect.FieldDescriptor) pro
 	case "poktroll.proof.Params.proof_missing_penalty":
 		value := x.ProofMissingPenalty
 		return protoreflect.ValueOfMessage(value.ProtoReflect())
+	case "poktroll.proof.Params.proof_submission_fee":
+		value := x.ProofSubmissionFee
+		return protoreflect.ValueOfMessage(value.ProtoReflect())
 	default:
 		if descriptor.IsExtension() {
 			panic(fmt.Errorf("proto3 declared messages do not support extensions: poktroll.proof.Params"))
@@ -226,6 +241,8 @@ func (x *fastReflection_Params) Set(fd protoreflect.FieldDescriptor, value proto
 		x.ProofRequirementThreshold = value.Uint()
 	case "poktroll.proof.Params.proof_missing_penalty":
 		x.ProofMissingPenalty = value.Message().Interface().(*v1beta1.Coin)
+	case "poktroll.proof.Params.proof_submission_fee":
+		x.ProofSubmissionFee = value.Message().Interface().(*v1beta1.Coin)
 	default:
 		if fd.IsExtension() {
 			panic(fmt.Errorf("proto3 declared messages do not support extensions: poktroll.proof.Params"))
@@ -251,6 +268,11 @@ func (x *fastReflection_Params) Mutable(fd protoreflect.FieldDescriptor) protore
 			x.ProofMissingPenalty = new(v1beta1.Coin)
 		}
 		return protoreflect.ValueOfMessage(x.ProofMissingPenalty.ProtoReflect())
+	case "poktroll.proof.Params.proof_submission_fee":
+		if x.ProofSubmissionFee == nil {
+			x.ProofSubmissionFee = new(v1beta1.Coin)
+		}
+		return protoreflect.ValueOfMessage(x.ProofSubmissionFee.ProtoReflect())
 	case "poktroll.proof.Params.relay_difficulty_target_hash":
 		panic(fmt.Errorf("field relay_difficulty_target_hash of message poktroll.proof.Params is not mutable"))
 	case "poktroll.proof.Params.proof_request_probability":
@@ -279,6 +301,9 @@ func (x *fastReflection_Params) NewField(fd protoreflect.FieldDescriptor) protor
 	case "poktroll.proof.Params.proof_missing_penalty":
 		m := new(v1beta1.Coin)
 		return protoreflect.ValueOfMessage(m.ProtoReflect())
+	case "poktroll.proof.Params.proof_submission_fee":
+		m := new(v1beta1.Coin)
+		return protoreflect.ValueOfMessage(m.ProtoReflect())
 	default:
 		if fd.IsExtension() {
 			panic(fmt.Errorf("proto3 declared messages do not support extensions: poktroll.proof.Params"))
@@ -362,6 +387,10 @@ func (x *fastReflection_Params) ProtoMethods() *protoiface.Methods {
 			l = options.Size(x.ProofMissingPenalty)
 			n += 1 + l + runtime.Sov(uint64(l))
 		}
+		if x.ProofSubmissionFee != nil {
+			l = options.Size(x.ProofSubmissionFee)
+			n += 1 + l + runtime.Sov(uint64(l))
+		}
 		if x.unknownFields != nil {
 			n += len(x.unknownFields)
 		}
@@ -391,6 +420,20 @@ func (x *fastReflection_Params) ProtoMethods() *protoiface.Methods {
 			i -= len(x.unknownFields)
 			copy(dAtA[i:], x.unknownFields)
 		}
+		if x.ProofSubmissionFee != nil {
+			encoded, err := options.Marshal(x.ProofSubmissionFee)
+			if err != nil {
+				return protoiface.MarshalOutput{
+					NoUnkeyedLiterals: input.NoUnkeyedLiterals,
+					Buf:               input.Buf,
+				}, err
+			}
+			i -= len(encoded)
+			copy(dAtA[i:], encoded)
+			i = runtime.EncodeVarint(dAtA, i, uint64(len(encoded)))
+			i--
+			dAtA[i] = 0x2a
+		}
 		if x.ProofMissingPenalty != nil {
 			encoded, err := options.Marshal(x.ProofMissingPenalty)
 			if err != nil {
@@ -572,6 +615,42 @@ func (x *fastReflection_Params) ProtoMethods() *protoiface.Methods {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, err
 				}
 				iNdEx = postIndex
+			case 5:
+				if wireType != 2 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field ProofSubmissionFee", wireType)
+				}
+				var msglen int
+				for shift := uint(0); ; shift += 7 {
+					if shift >= 64 {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrIntOverflow
+					}
+					if iNdEx >= l {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+					}
+					b := dAtA[iNdEx]
+					iNdEx++
+					msglen |= int(b&0x7F) << shift
+					if b < 0x80 {
+						break
+					}
+				}
+				if msglen < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				postIndex := iNdEx + msglen
+				if postIndex < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				if postIndex > l {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+				}
+				if x.ProofSubmissionFee == nil {
+					x.ProofSubmissionFee = &v1beta1.Coin{}
+				}
+				if err := options.Unmarshal(dAtA[iNdEx:postIndex], x.ProofSubmissionFee); err != nil {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, err
+				}
+				iNdEx = postIndex
 			default:
 				iNdEx = preIndex
 				skippy, err := runtime.Skip(dAtA[iNdEx:])
@@ -643,6 +722,11 @@ type Params struct {
 	// when a proof is required (either via proof_requirement_threshold or proof_missing_penalty)
 	// but is not provided.
 	ProofMissingPenalty *v1beta1.Coin `protobuf:"bytes,4,opt,name=proof_missing_penalty,json=proofMissingPenalty,proto3" json:"proof_missing_penalty,omitempty"`
+	// proof_submission_fee is the number of tokens (uPOKT) which should be paid by
+	// the supplier operator when submitting a proof.
+	// This is needed to account for the cost of storing proofs on-chain and prevent
+	// spamming (i.e. sybil bloat attacks) the network with non-required proofs.
+	ProofSubmissionFee *v1beta1.Coin `protobuf:"bytes,5,opt,name=proof_submission_fee,json=proofSubmissionFee,proto3" json:"proof_submission_fee,omitempty"`
 }
 
 func (x *Params) Reset() {
@@ -693,6 +777,13 @@ func (x *Params) GetProofMissingPenalty() *v1beta1.Coin {
 	return nil
 }
 
+func (x *Params) GetProofSubmissionFee() *v1beta1.Coin {
+	if x != nil {
+		return x.ProofSubmissionFee
+	}
+	return nil
+}
+
 var File_poktroll_proof_params_proto protoreflect.FileDescriptor
 
 var file_poktroll_proof_params_proto_rawDesc = []byte{
@@ -703,7 +794,7 @@ var file_poktroll_proof_params_proto_rawDesc = []byte{
 	0x1a, 0x14, 0x67, 0x6f, 0x67, 0x6f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x67, 0x6f, 0x67, 0x6f,
 	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x1e, 0x63, 0x6f, 0x73, 0x6d, 0x6f, 0x73, 0x2f, 0x62,
 	0x61, 0x73, 0x65, 0x2f, 0x76, 0x31, 0x62, 0x65, 0x74, 0x61, 0x31, 0x2f, 0x63, 0x6f, 0x69, 0x6e,
-	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xb3, 0x03, 0x0a, 0x06, 0x50, 0x61, 0x72, 0x61, 0x6d,
+	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x9a, 0x04, 0x0a, 0x06, 0x50, 0x61, 0x72, 0x61, 0x6d,
 	0x73, 0x12, 0x61, 0x0a, 0x1c, 0x72, 0x65, 0x6c, 0x61, 0x79, 0x5f, 0x64, 0x69, 0x66, 0x66, 0x69,
 	0x63, 0x75, 0x6c, 0x74, 0x79, 0x5f, 0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x5f, 0x68, 0x61, 0x73,
 	0x68, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x42, 0x20, 0xea, 0xde, 0x1f, 0x1c, 0x72, 0x65, 0x6c,
@@ -728,20 +819,26 @@ var file_poktroll_proof_params_proto_rawDesc = []byte{
 	0x62, 0x65, 0x74, 0x61, 0x31, 0x2e, 0x43, 0x6f, 0x69, 0x6e, 0x42, 0x19, 0xea, 0xde, 0x1f, 0x15,
 	0x70, 0x72, 0x6f, 0x6f, 0x66, 0x5f, 0x6d, 0x69, 0x73, 0x73, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x65,
 	0x6e, 0x61, 0x6c, 0x74, 0x79, 0x52, 0x13, 0x70, 0x72, 0x6f, 0x6f, 0x66, 0x4d, 0x69, 0x73, 0x73,
-	0x69, 0x6e, 0x67, 0x50, 0x65, 0x6e, 0x61, 0x6c, 0x74, 0x79, 0x3a, 0x20, 0xe8, 0xa0, 0x1f, 0x01,
-	0x8a, 0xe7, 0xb0, 0x2a, 0x17, 0x70, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c, 0x2f, 0x78, 0x2f,
-	0x70, 0x72, 0x6f, 0x6f, 0x66, 0x2f, 0x50, 0x61, 0x72, 0x61, 0x6d, 0x73, 0x42, 0x9f, 0x01, 0xd8,
-	0xe2, 0x1e, 0x01, 0x0a, 0x12, 0x63, 0x6f, 0x6d, 0x2e, 0x70, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c,
-	0x6c, 0x2e, 0x70, 0x72, 0x6f, 0x6f, 0x66, 0x42, 0x0b, 0x50, 0x61, 0x72, 0x61, 0x6d, 0x73, 0x50,
-	0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x1f, 0x63, 0x6f, 0x73, 0x6d, 0x6f, 0x73, 0x73, 0x64,
-	0x6b, 0x2e, 0x69, 0x6f, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x70, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c,
-	0x6c, 0x2f, 0x70, 0x72, 0x6f, 0x6f, 0x66, 0xa2, 0x02, 0x03, 0x50, 0x50, 0x58, 0xaa, 0x02, 0x0e,
-	0x50, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c, 0x2e, 0x50, 0x72, 0x6f, 0x6f, 0x66, 0xca, 0x02,
-	0x0e, 0x50, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c, 0x5c, 0x50, 0x72, 0x6f, 0x6f, 0x66, 0xe2,
-	0x02, 0x1a, 0x50, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c, 0x5c, 0x50, 0x72, 0x6f, 0x6f, 0x66,
-	0x5c, 0x47, 0x50, 0x42, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0xea, 0x02, 0x0f, 0x50,
-	0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c, 0x3a, 0x3a, 0x50, 0x72, 0x6f, 0x6f, 0x66, 0x62, 0x06,
-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x69, 0x6e, 0x67, 0x50, 0x65, 0x6e, 0x61, 0x6c, 0x74, 0x79, 0x12, 0x65, 0x0a, 0x14, 0x70, 0x72,
+	0x6f, 0x6f, 0x66, 0x5f, 0x73, 0x75, 0x62, 0x6d, 0x69, 0x73, 0x73, 0x69, 0x6f, 0x6e, 0x5f, 0x66,
+	0x65, 0x65, 0x18, 0x05, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x63, 0x6f, 0x73, 0x6d, 0x6f,
+	0x73, 0x2e, 0x62, 0x61, 0x73, 0x65, 0x2e, 0x76, 0x31, 0x62, 0x65, 0x74, 0x61, 0x31, 0x2e, 0x43,
+	0x6f, 0x69, 0x6e, 0x42, 0x18, 0xea, 0xde, 0x1f, 0x14, 0x70, 0x72, 0x6f, 0x6f, 0x66, 0x5f, 0x73,
+	0x75, 0x62, 0x6d, 0x69, 0x73, 0x73, 0x69, 0x6f, 0x6e, 0x5f, 0x66, 0x65, 0x65, 0x52, 0x12, 0x70,
+	0x72, 0x6f, 0x6f, 0x66, 0x53, 0x75, 0x62, 0x6d, 0x69, 0x73, 0x73, 0x69, 0x6f, 0x6e, 0x46, 0x65,
+	0x65, 0x3a, 0x20, 0xe8, 0xa0, 0x1f, 0x01, 0x8a, 0xe7, 0xb0, 0x2a, 0x17, 0x70, 0x6f, 0x6b, 0x74,
+	0x72, 0x6f, 0x6c, 0x6c, 0x2f, 0x78, 0x2f, 0x70, 0x72, 0x6f, 0x6f, 0x66, 0x2f, 0x50, 0x61, 0x72,
+	0x61, 0x6d, 0x73, 0x42, 0x9f, 0x01, 0xd8, 0xe2, 0x1e, 0x01, 0x0a, 0x12, 0x63, 0x6f, 0x6d, 0x2e,
+	0x70, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c, 0x2e, 0x70, 0x72, 0x6f, 0x6f, 0x66, 0x42, 0x0b,
+	0x50, 0x61, 0x72, 0x61, 0x6d, 0x73, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x1f, 0x63,
+	0x6f, 0x73, 0x6d, 0x6f, 0x73, 0x73, 0x64, 0x6b, 0x2e, 0x69, 0x6f, 0x2f, 0x61, 0x70, 0x69, 0x2f,
+	0x70, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c, 0x2f, 0x70, 0x72, 0x6f, 0x6f, 0x66, 0xa2, 0x02,
+	0x03, 0x50, 0x50, 0x58, 0xaa, 0x02, 0x0e, 0x50, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c, 0x2e,
+	0x50, 0x72, 0x6f, 0x6f, 0x66, 0xca, 0x02, 0x0e, 0x50, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c,
+	0x5c, 0x50, 0x72, 0x6f, 0x6f, 0x66, 0xe2, 0x02, 0x1a, 0x50, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c,
+	0x6c, 0x5c, 0x50, 0x72, 0x6f, 0x6f, 0x66, 0x5c, 0x47, 0x50, 0x42, 0x4d, 0x65, 0x74, 0x61, 0x64,
+	0x61, 0x74, 0x61, 0xea, 0x02, 0x0f, 0x50, 0x6f, 0x6b, 0x74, 0x72, 0x6f, 0x6c, 0x6c, 0x3a, 0x3a,
+	0x50, 0x72, 0x6f, 0x6f, 0x66, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -763,11 +860,12 @@ var file_poktroll_proof_params_proto_goTypes = []interface{}{
 }
 var file_poktroll_proof_params_proto_depIdxs = []int32{
 	1, // 0: poktroll.proof.Params.proof_missing_penalty:type_name -> cosmos.base.v1beta1.Coin
-	1, // [1:1] is the sub-list for method output_type
-	1, // [1:1] is the sub-list for method input_type
-	1, // [1:1] is the sub-list for extension type_name
-	1, // [1:1] is the sub-list for extension extendee
-	0, // [0:1] is the sub-list for field type_name
+	1, // 1: poktroll.proof.Params.proof_submission_fee:type_name -> cosmos.base.v1beta1.Coin
+	2, // [2:2] is the sub-list for method output_type
+	2, // [2:2] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
 }
 
 func init() { file_poktroll_proof_params_proto_init() }
diff --git a/config.yml b/config.yml
index 5f5acb398..8a9eabb3f 100644
--- a/config.yml
+++ b/config.yml
@@ -239,6 +239,9 @@ genesis:
         proof_missing_penalty:
           amount: "320"
           denom: upokt
+        proof_submission_fee:
+          amount: "1000000"
+          denom: upokt
     shared:
       params:
         num_blocks_per_session: 10
diff --git a/e2e/tests/parse_params_test.go b/e2e/tests/parse_params_test.go
index c51d0395a..e33e1e423 100644
--- a/e2e/tests/parse_params_test.go
+++ b/e2e/tests/parse_params_test.go
@@ -141,6 +141,8 @@ func (s *suite) newProofMsgUpdateParams(params paramsMap) cosmostypes.Msg {
 			msgUpdateParams.Params.ProofRequirementThreshold = uint64(paramValue.value.(int64))
 		case prooftypes.ParamProofMissingPenalty:
 			msgUpdateParams.Params.ProofMissingPenalty = paramValue.value.(*cosmostypes.Coin)
+		case prooftypes.ParamProofSubmissionFee:
+			msgUpdateParams.Params.ProofSubmissionFee = paramValue.value.(*cosmostypes.Coin)
 		default:
 			s.Fatalf("ERROR: unexpected %q type param name %q", paramValue.typeStr, paramName)
 		}
diff --git a/e2e/tests/update_params.feature b/e2e/tests/update_params.feature
index 4ae05c22e..f0df8beaa 100644
--- a/e2e/tests/update_params.feature
+++ b/e2e/tests/update_params.feature
@@ -42,6 +42,7 @@ Feature: Params Namespace
       | proof_request_probability    | 0.1                                                              | float |
       | proof_requirement_threshold  | 100                                                              | int64 |
       | proof_missing_penalty        | 500                                                              | coin  |
+      | proof_submission_fee         | 5000000                                                          | coin  |
     Then all "proof" module params should be updated
 
   # NB: If you are reading this and the proof module has parameters
@@ -92,6 +93,7 @@ Feature: Params Namespace
       | proof      | /poktroll.proof.MsgUpdateParam      | proof_request_probability             | 0.1         | float      |
       | proof      | /poktroll.proof.MsgUpdateParam      | proof_requirement_threshold           | 100         | int64      |
       | proof      | /poktroll.proof.MsgUpdateParam      | proof_missing_penalty                 | 500         | coin       |
+      | proof      | /poktroll.proof.MsgUpdateParam      | proof_submission_fee                  | 5000000     | coin       |
       | shared     | /poktroll.shared.MsgUpdateParam     | num_blocks_per_session                | 5           | int64      |
       | shared     | /poktroll.shared.MsgUpdateParam     | grace_period_end_offset_blocks        | 2           | int64      |
       | shared     | /poktroll.shared.MsgUpdateParam     | claim_window_open_offset_blocks       | 2           | int64      |
diff --git a/e2e/tests/update_params_test.go b/e2e/tests/update_params_test.go
index dd317d027..c13b1dfc6 100644
--- a/e2e/tests/update_params_test.go
+++ b/e2e/tests/update_params_test.go
@@ -393,6 +393,11 @@ func (s *suite) assertExpectedModuleParamsUpdated(moduleName string) {
 			params.ProofMissingPenalty = proofMissingPenalty.value.(*cosmostypes.Coin)
 		}
 
+		proofSubmissionFee, ok := paramsMap[prooftypes.ParamProofSubmissionFee]
+		if ok {
+			params.ProofSubmissionFee = proofSubmissionFee.value.(*cosmostypes.Coin)
+		}
+
 		assertUpdatedParams(s,
 			[]byte(res.Stdout),
 			&prooftypes.QueryParamsResponse{
diff --git a/proto/poktroll/proof/params.proto b/proto/poktroll/proof/params.proto
index cd02b63b5..a92205188 100644
--- a/proto/poktroll/proof/params.proto
+++ b/proto/poktroll/proof/params.proto
@@ -34,6 +34,12 @@ message Params {
   // but is not provided.
   cosmos.base.v1beta1.Coin proof_missing_penalty = 4 [(gogoproto.jsontag) = "proof_missing_penalty"];
 
+  // proof_submission_fee is the number of tokens (uPOKT) which should be paid by
+  // the supplier operator when submitting a proof.
+  // This is needed to account for the cost of storing proofs on-chain and prevent
+  // spamming (i.e. sybil bloat attacks) the network with non-required proofs.
+  cosmos.base.v1beta1.Coin proof_submission_fee = 5 [(gogoproto.jsontag) = "proof_submission_fee"];
+
   // IMPORTANT: Make sure to update all related files if you're modifying or adding a new parameter.
   // Try the following grep to find all related places: `grep -r compute_units_to_tokens_multiplier`
   // TODO_IMPROVE: Look into an opportunity to use an enum to avoid using strings throughout the codebase.
diff --git a/tools/scripts/params/proof_all.json b/tools/scripts/params/proof_all.json
index 66e3a5396..97fc0e2dd 100644
--- a/tools/scripts/params/proof_all.json
+++ b/tools/scripts/params/proof_all.json
@@ -11,6 +11,10 @@
           "proof_missing_penalty": {
             "amount": "320",
             "denom": "upokt"
+          },
+          "proof_submission_fee": {
+            "amount": "1000000",
+            "denom": "upokt"
           }
         }
       }
diff --git a/tools/scripts/params/proof_proof_submission_fee.json b/tools/scripts/params/proof_proof_submission_fee.json
new file mode 100644
index 000000000..95d98fb62
--- /dev/null
+++ b/tools/scripts/params/proof_proof_submission_fee.json
@@ -0,0 +1,15 @@
+{
+  "body": {
+    "messages": [
+      {
+        "@type": "/poktroll.proof.MsgUpdateParam",
+        "authority": "pokt10d07y265gmmuvt4z0w9aw880jnsr700j8yv32t",
+        "name": "proof_submission_fee",
+        "as_coin": {
+          "denom": "upokt",
+          "amount": "1000000"
+        }
+      }
+    ]
+  }
+}
diff --git a/x/proof/keeper/msg_server_update_param.go b/x/proof/keeper/msg_server_update_param.go
index 6b941068d..1f1c2d112 100644
--- a/x/proof/keeper/msg_server_update_param.go
+++ b/x/proof/keeper/msg_server_update_param.go
@@ -71,6 +71,18 @@ func (k msgServer) UpdateParam(
 		}
 
 		params.ProofMissingPenalty = proofMissingPenalty
+	case types.ParamProofSubmissionFee:
+		value, ok := msg.AsType.(*types.MsgUpdateParam_AsCoin)
+		if !ok {
+			return nil, types.ErrProofParamInvalid.Wrapf("unsupported value type for %s param: %T", msg.Name, msg.AsType)
+		}
+		proofSubmissionFee := value.AsCoin
+
+		if err := types.ValidateProofSubmissionFee(proofSubmissionFee); err != nil {
+			return nil, err
+		}
+
+		params.ProofSubmissionFee = proofSubmissionFee
 	default:
 		return nil, types.ErrProofParamInvalid.Wrapf("unsupported param %q", msg.Name)
 	}
diff --git a/x/proof/keeper/msg_server_update_param_test.go b/x/proof/keeper/msg_server_update_param_test.go
index 243de80ea..d32eead82 100644
--- a/x/proof/keeper/msg_server_update_param_test.go
+++ b/x/proof/keeper/msg_server_update_param_test.go
@@ -122,3 +122,30 @@ func TestMsgUpdateParam_UpdateProofMissingPenaltyOnly(t *testing.T) {
 	// Ensure the other parameters are unchanged
 	testkeeper.AssertDefaultParamsEqualExceptFields(t, &defaultParams, res.Params, "ProofMissingPenalty")
 }
+
+func TestMsgUpdateParam_UpdateProofSubmissionFeeOnly(t *testing.T) {
+	expectedProofSubmissionFee := cosmostypes.NewCoin(volatile.DenomuPOKT, math.NewInt(1000001))
+
+	// Set the parameters to their default values
+	k, msgSrv, ctx := setupMsgServer(t)
+	defaultParams := prooftypes.DefaultParams()
+	require.NoError(t, k.SetParams(ctx, defaultParams))
+
+	// Ensure the default values are different from the new values we want to set
+	require.NotEqual(t, expectedProofSubmissionFee, defaultParams.ProofSubmissionFee)
+
+	// Update the proof request probability
+	updateParamMsg := &prooftypes.MsgUpdateParam{
+		Authority: authtypes.NewModuleAddress(govtypes.ModuleName).String(),
+		Name:      prooftypes.ParamProofSubmissionFee,
+		AsType:    &prooftypes.MsgUpdateParam_AsCoin{AsCoin: &expectedProofSubmissionFee},
+	}
+	res, err := msgSrv.UpdateParam(ctx, updateParamMsg)
+	require.NoError(t, err)
+
+	require.NotEqual(t, defaultParams.ProofSubmissionFee, res.Params.ProofSubmissionFee)
+	require.Equal(t, &expectedProofSubmissionFee, res.Params.ProofSubmissionFee)
+
+	// Ensure the other parameters are unchanged
+	testkeeper.AssertDefaultParamsEqualExceptFields(t, &defaultParams, res.Params, "ProofSubmissionFee")
+}
diff --git a/x/proof/keeper/msg_update_params_test.go b/x/proof/keeper/msg_update_params_test.go
index f5ce27e29..f50570c46 100644
--- a/x/proof/keeper/msg_update_params_test.go
+++ b/x/proof/keeper/msg_update_params_test.go
@@ -43,6 +43,7 @@ func TestMsgUpdateParams(t *testing.T) {
 				Authority: k.GetAuthority(),
 				Params: types.Params{
 					ProofMissingPenalty:       &types.DefaultProofMissingPenalty,
+					ProofSubmissionFee:        &types.MinProofSubmissionFee,
 					RelayDifficultyTargetHash: types.DefaultRelayDifficultyTargetHash,
 				},
 			},
diff --git a/x/proof/keeper/params_test.go b/x/proof/keeper/params_test.go
index 6c281b639..a22a99a41 100644
--- a/x/proof/keeper/params_test.go
+++ b/x/proof/keeper/params_test.go
@@ -7,6 +7,7 @@ import (
 	cosmostypes "github.com/cosmos/cosmos-sdk/types"
 	"github.com/stretchr/testify/require"
 
+	"github.com/pokt-network/poktroll/app/volatile"
 	keepertest "github.com/pokt-network/poktroll/testutil/keeper"
 	prooftypes "github.com/pokt-network/poktroll/x/proof/types"
 )
@@ -164,3 +165,61 @@ func TestParams_ValidateProofMissingPenalty(t *testing.T) {
 		})
 	}
 }
+
+func TestParams_ValidateProofSubmissionFee(t *testing.T) {
+	invalidDenomCoin := cosmostypes.NewCoin("invalid_denom", math.NewInt(1))
+	belowMinProofSubmissionFee := prooftypes.MinProofSubmissionFee.
+		Sub(cosmostypes.NewCoin(volatile.DenomuPOKT, math.NewInt(1)))
+
+	tests := []struct {
+		desc               string
+		proofSubmissionFee any
+		expectedErr        error
+	}{
+		{
+			desc:               "invalid type",
+			proofSubmissionFee: int64(-1),
+			expectedErr:        prooftypes.ErrProofParamInvalid.Wrap("invalid parameter type: int64"),
+		},
+		{
+			desc:               "invalid denomination",
+			proofSubmissionFee: &invalidDenomCoin,
+			expectedErr:        prooftypes.ErrProofParamInvalid.Wrap("invalid coin denom: invalid_denom"),
+		},
+		{
+			desc:               "missing",
+			proofSubmissionFee: nil,
+			expectedErr:        prooftypes.ErrProofParamInvalid.Wrap("invalid parameter type: <nil>"),
+		},
+		{
+			desc:               "missing (typed)",
+			proofSubmissionFee: (*cosmostypes.Coin)(nil),
+			expectedErr:        prooftypes.ErrProofParamInvalid.Wrap("missing proof_submission_fee"),
+		},
+		{
+			desc:               "below minimum",
+			proofSubmissionFee: &belowMinProofSubmissionFee,
+			expectedErr: prooftypes.ErrProofParamInvalid.Wrapf(
+				"ProofSubmissionFee param is below minimum value %s: got %s",
+				prooftypes.MinProofSubmissionFee,
+				belowMinProofSubmissionFee,
+			),
+		},
+		{
+			desc:               "valid",
+			proofSubmissionFee: &prooftypes.MinProofSubmissionFee,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.desc, func(t *testing.T) {
+			err := prooftypes.ValidateProofSubmissionFee(tt.proofSubmissionFee)
+			if tt.expectedErr != nil {
+				require.Error(t, err)
+				require.Contains(t, err.Error(), tt.expectedErr.Error())
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}
diff --git a/x/proof/types/message_update_param.go b/x/proof/types/message_update_param.go
index b9a0b4621..cc261973b 100644
--- a/x/proof/types/message_update_param.go
+++ b/x/proof/types/message_update_param.go
@@ -20,6 +20,8 @@ func NewMsgUpdateParam(authority string, name string, value any) (*MsgUpdatePara
 		valueAsType = &MsgUpdateParam_AsInt64{AsInt64: v}
 	case []byte:
 		valueAsType = &MsgUpdateParam_AsBytes{AsBytes: v}
+	case *sdk.Coin:
+		valueAsType = &MsgUpdateParam_AsCoin{AsCoin: v}
 	default:
 		return nil, fmt.Errorf("unexpected param value type: %T", value)
 	}
@@ -55,6 +57,8 @@ func (msg *MsgUpdateParam) ValidateBasic() error {
 		return msg.paramTypeIsInt64()
 	case ParamProofMissingPenalty:
 		return msg.paramTypeIsCoin()
+	case ParamProofSubmissionFee:
+		return msg.paramTypeIsCoin()
 	default:
 		return ErrProofParamNameInvalid.Wrapf("unsupported param %q", msg.Name)
 	}
diff --git a/x/proof/types/params.go b/x/proof/types/params.go
index 218831ba2..b6da6324c 100644
--- a/x/proof/types/params.go
+++ b/x/proof/types/params.go
@@ -33,6 +33,12 @@ var (
 	KeyProofMissingPenalty     = []byte("ProofMissingPenalty")
 	ParamProofMissingPenalty   = "proof_missing_penalty"
 	DefaultProofMissingPenalty = cosmostypes.NewCoin(volatile.DenomuPOKT, math.NewInt(320)) // See: https://github.com/pokt-network/pocket-core/blob/staging/docs/proposals/probabilistic_proofs.md
+
+	KeyProofSubmissionFee   = []byte("ProofSubmissionFee")
+	ParamProofSubmissionFee = "proof_submission_fee"
+	// TODO_MAINNET: Determine a sensible default value for the proof submission fee.
+	// MinProofSubmissionFee is the default and minimum fee for submitting a proof.
+	MinProofSubmissionFee = cosmostypes.NewCoin(volatile.DenomuPOKT, math.NewInt(1000000))
 )
 
 // ParamKeyTable the param key table for launch module
@@ -46,12 +52,14 @@ func NewParams(
 	proofRequestProbability float32,
 	proofRequirementThreshold uint64,
 	proofMissingPenalty *cosmostypes.Coin,
+	proofSubmissionFee *cosmostypes.Coin,
 ) Params {
 	return Params{
 		RelayDifficultyTargetHash: relayDifficultyTargetHash,
 		ProofRequestProbability:   proofRequestProbability,
 		ProofRequirementThreshold: proofRequirementThreshold,
 		ProofMissingPenalty:       proofMissingPenalty,
+		ProofSubmissionFee:        proofSubmissionFee,
 	}
 }
 
@@ -62,6 +70,7 @@ func DefaultParams() Params {
 		DefaultProofRequestProbability,
 		DefaultProofRequirementThreshold,
 		&DefaultProofMissingPenalty,
+		&MinProofSubmissionFee,
 	)
 }
 
@@ -88,6 +97,11 @@ func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
 			&p.ProofMissingPenalty,
 			ValidateProofMissingPenalty,
 		),
+		paramtypes.NewParamSetPair(
+			KeyProofSubmissionFee,
+			&p.ProofSubmissionFee,
+			ValidateProofSubmissionFee,
+		),
 	}
 }
 
@@ -110,6 +124,10 @@ func (params *Params) ValidateBasic() error {
 		return err
 	}
 
+	if err := ValidateProofSubmissionFee(params.ProofSubmissionFee); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -177,3 +195,30 @@ func ValidateProofMissingPenalty(v interface{}) error {
 
 	return nil
 }
+
+// ValidateProofSubmission validates the ProofSubmissionFee param.
+// NB: The argument is an interface type to satisfy the ParamSetPair function signature.
+func ValidateProofSubmissionFee(v interface{}) error {
+	submissionFeeCoin, ok := v.(*cosmostypes.Coin)
+	if !ok {
+		return ErrProofParamInvalid.Wrapf("invalid parameter type: %T", v)
+	}
+
+	if submissionFeeCoin == nil {
+		return ErrProofParamInvalid.Wrap("missing proof_submission_fee")
+	}
+
+	if submissionFeeCoin.Denom != volatile.DenomuPOKT {
+		return ErrProofParamInvalid.Wrapf("invalid coin denom: %s", submissionFeeCoin.Denom)
+	}
+
+	if submissionFeeCoin.Amount.LT(MinProofSubmissionFee.Amount) {
+		return ErrProofParamInvalid.Wrapf(
+			"ProofSubmissionFee param is below minimum value %s: got %s",
+			MinProofSubmissionFee,
+			submissionFeeCoin,
+		)
+	}
+
+	return nil
+}
diff --git a/x/proof/types/params.pb.go b/x/proof/types/params.pb.go
index f56644e2a..12994f2f5 100644
--- a/x/proof/types/params.pb.go
+++ b/x/proof/types/params.pb.go
@@ -46,6 +46,11 @@ type Params struct {
 	// when a proof is required (either via proof_requirement_threshold or proof_missing_penalty)
 	// but is not provided.
 	ProofMissingPenalty *types.Coin `protobuf:"bytes,4,opt,name=proof_missing_penalty,json=proofMissingPenalty,proto3" json:"proof_missing_penalty"`
+	// proof_submission_fee is the number of tokens (uPOKT) which should be paid by
+	// the supplier operator when submitting a proof.
+	// This is needed to account for the cost of storing proofs on-chain and prevent
+	// spamming (i.e. sybil bloat attacks) the network with non-required proofs.
+	ProofSubmissionFee *types.Coin `protobuf:"bytes,5,opt,name=proof_submission_fee,json=proofSubmissionFee,proto3" json:"proof_submission_fee"`
 }
 
 func (m *Params) Reset()         { *m = Params{} }
@@ -105,6 +110,13 @@ func (m *Params) GetProofMissingPenalty() *types.Coin {
 	return nil
 }
 
+func (m *Params) GetProofSubmissionFee() *types.Coin {
+	if m != nil {
+		return m.ProofSubmissionFee
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterType((*Params)(nil), "poktroll.proof.Params")
 }
@@ -112,33 +124,35 @@ func init() {
 func init() { proto.RegisterFile("poktroll/proof/params.proto", fileDescriptor_2ad689ad5bf3a2d7) }
 
 var fileDescriptor_2ad689ad5bf3a2d7 = []byte{
-	// 408 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x7c, 0x92, 0xb1, 0x6e, 0xd5, 0x30,
-	0x14, 0x86, 0xaf, 0xdb, 0xaa, 0x43, 0x40, 0x48, 0x04, 0x50, 0x6f, 0x5a, 0x70, 0x22, 0xa6, 0x08,
-	0x09, 0x5b, 0x85, 0x8d, 0x31, 0x30, 0x30, 0x80, 0x74, 0x15, 0x75, 0x81, 0xc5, 0x72, 0x52, 0xdf,
-	0xc4, 0x6a, 0x92, 0x13, 0x6c, 0x5f, 0x20, 0xaf, 0xc0, 0xc4, 0x23, 0xf0, 0x08, 0x48, 0xbc, 0x04,
-	0x63, 0xc7, 0x4e, 0x11, 0xca, 0x1d, 0x40, 0x79, 0x0a, 0x74, 0xed, 0xf4, 0x76, 0x80, 0x76, 0xb1,
-	0x8e, 0xfe, 0xef, 0x3f, 0xc7, 0xd6, 0xf1, 0xef, 0x1d, 0xb5, 0x70, 0x66, 0x14, 0x54, 0x15, 0x6d,
-	0x15, 0xc0, 0x92, 0xb6, 0x5c, 0xf1, 0x5a, 0x93, 0x56, 0x81, 0x01, 0xff, 0xce, 0x25, 0x24, 0x16,
-	0x1e, 0xde, 0xe5, 0xb5, 0x6c, 0x80, 0xda, 0xd3, 0x59, 0x0e, 0xef, 0x17, 0x50, 0x80, 0x2d, 0xe9,
-	0xa6, 0x9a, 0x54, 0x9c, 0x83, 0xae, 0x41, 0xd3, 0x8c, 0x6b, 0x41, 0x3f, 0x1e, 0x67, 0xc2, 0xf0,
-	0x63, 0x9a, 0x83, 0x6c, 0x1c, 0x7f, 0xfc, 0x63, 0xd7, 0xdb, 0x5f, 0xd8, 0x9b, 0x7c, 0xee, 0x3d,
-	0x54, 0xa2, 0xe2, 0x1d, 0x3b, 0x95, 0xcb, 0xa5, 0xcc, 0x57, 0x95, 0xe9, 0x98, 0xe1, 0xaa, 0x10,
-	0x86, 0x95, 0x5c, 0x97, 0x73, 0x14, 0xa1, 0xf8, 0x76, 0x12, 0x8d, 0x7d, 0x78, 0xa3, 0x2f, 0x0d,
-	0x2c, 0x7d, 0xb5, 0x85, 0x27, 0x96, 0xbd, 0xe6, 0xba, 0xf4, 0xdf, 0x79, 0x81, 0x7d, 0x3f, 0x53,
-	0xe2, 0xc3, 0x4a, 0x68, 0xc3, 0x5a, 0x05, 0x19, 0xcf, 0x64, 0x25, 0x4d, 0x37, 0xdf, 0x89, 0x50,
-	0xbc, 0x93, 0x3c, 0x1a, 0xfb, 0xf0, 0x7a, 0x53, 0x7a, 0x60, 0x51, 0xea, 0xc8, 0xe2, 0x0a, 0xf8,
-	0xcc, 0x3b, 0xba, 0xea, 0x92, 0x4a, 0xd4, 0xa2, 0x31, 0xcc, 0x94, 0x4a, 0xe8, 0x12, 0xaa, 0xd3,
-	0xf9, 0x6e, 0x84, 0xe2, 0xbd, 0x24, 0x1c, 0xfb, 0xf0, 0x26, 0x5b, 0x1a, 0x6c, 0xc7, 0x4f, 0xec,
-	0xe4, 0x12, 0xf9, 0xa5, 0xf7, 0xc0, 0x75, 0xd6, 0x52, 0x6b, 0xd9, 0x14, 0xac, 0x15, 0x0d, 0xaf,
-	0x4c, 0x37, 0xdf, 0x8b, 0x50, 0x7c, 0xeb, 0x59, 0x40, 0xdc, 0xa6, 0xc9, 0x66, 0xd3, 0x64, 0xda,
-	0x34, 0x79, 0x09, 0xb2, 0x49, 0x82, 0xb1, 0x0f, 0xff, 0xdf, 0x9b, 0xde, 0xb3, 0xf2, 0x5b, 0xa7,
-	0x2e, 0x9c, 0xf8, 0x22, 0xfa, 0xf3, 0x2d, 0x44, 0x5f, 0x7e, 0x7f, 0x7f, 0x72, 0xb0, 0x8d, 0xc4,
-	0xe7, 0x29, 0x14, 0xee, 0xab, 0x92, 0x37, 0x3f, 0x07, 0x8c, 0xce, 0x07, 0x8c, 0x2e, 0x06, 0x8c,
-	0x7e, 0x0d, 0x18, 0x7d, 0x5d, 0xe3, 0xd9, 0xf9, 0x1a, 0xcf, 0x2e, 0xd6, 0x78, 0xf6, 0x9e, 0x14,
-	0xd2, 0x94, 0xab, 0x8c, 0xe4, 0x50, 0xd3, 0xcd, 0x84, 0xa7, 0x8d, 0x30, 0x9f, 0x40, 0x9d, 0xd1,
-	0x7f, 0xc6, 0x99, 0xae, 0x15, 0x3a, 0xdb, 0xb7, 0x51, 0x78, 0xfe, 0x37, 0x00, 0x00, 0xff, 0xff,
-	0x5e, 0x92, 0x9f, 0x7b, 0x82, 0x02, 0x00, 0x00,
+	// 439 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x84, 0x92, 0xb1, 0x6e, 0xd4, 0x40,
+	0x10, 0x86, 0x6f, 0xc3, 0x91, 0xc2, 0x20, 0x24, 0x4c, 0x50, 0xec, 0x04, 0x6c, 0x8b, 0xea, 0x84,
+	0x84, 0x57, 0x81, 0x8e, 0xd2, 0x20, 0x44, 0x01, 0xd2, 0xc9, 0xa4, 0x81, 0x66, 0xb5, 0xbe, 0xcc,
+	0xd9, 0xab, 0xd8, 0x1e, 0xb3, 0xbb, 0x07, 0xf8, 0x15, 0xa8, 0xa8, 0xa9, 0x78, 0x04, 0x1e, 0x83,
+	0x32, 0x65, 0x2a, 0x0b, 0xdd, 0x15, 0x20, 0x3f, 0x05, 0xba, 0xdd, 0x8b, 0x53, 0x10, 0x8e, 0xc6,
+	0x5a, 0xfd, 0xdf, 0xff, 0xcf, 0x58, 0xa3, 0xdf, 0x39, 0x6c, 0xf0, 0x54, 0x4b, 0x2c, 0x4b, 0xda,
+	0x48, 0xc4, 0x39, 0x6d, 0xb8, 0xe4, 0x95, 0x8a, 0x1b, 0x89, 0x1a, 0xdd, 0x5b, 0x17, 0x30, 0x36,
+	0xf0, 0xe0, 0x36, 0xaf, 0x44, 0x8d, 0xd4, 0x7c, 0xad, 0xe5, 0x60, 0x2f, 0xc7, 0x1c, 0xcd, 0x93,
+	0xae, 0x5f, 0x1b, 0x35, 0x98, 0xa1, 0xaa, 0x50, 0xd1, 0x8c, 0x2b, 0xa0, 0x1f, 0x8e, 0x32, 0xd0,
+	0xfc, 0x88, 0xce, 0x50, 0xd4, 0x96, 0x3f, 0xf8, 0x3a, 0x76, 0x76, 0xa7, 0x66, 0x93, 0xcb, 0x9d,
+	0x7b, 0x12, 0x4a, 0xde, 0xb2, 0x13, 0x31, 0x9f, 0x8b, 0xd9, 0xa2, 0xd4, 0x2d, 0xd3, 0x5c, 0xe6,
+	0xa0, 0x59, 0xc1, 0x55, 0xe1, 0x91, 0x88, 0x4c, 0x6e, 0x26, 0x51, 0xdf, 0x85, 0x5b, 0x7d, 0xa9,
+	0x6f, 0xe8, 0xf3, 0x01, 0x1e, 0x1b, 0xf6, 0x92, 0xab, 0xc2, 0x7d, 0xeb, 0xf8, 0xe6, 0xff, 0x99,
+	0x84, 0xf7, 0x0b, 0x50, 0x9a, 0x35, 0x12, 0x33, 0x9e, 0x89, 0x52, 0xe8, 0xd6, 0xdb, 0x89, 0xc8,
+	0x64, 0x27, 0xb9, 0xdf, 0x77, 0xe1, 0xbf, 0x4d, 0xe9, 0xbe, 0x41, 0xa9, 0x25, 0xd3, 0x4b, 0xe0,
+	0x32, 0xe7, 0xf0, 0x32, 0x25, 0x24, 0x54, 0x50, 0x6b, 0xa6, 0x0b, 0x09, 0xaa, 0xc0, 0xf2, 0xc4,
+	0xbb, 0x16, 0x91, 0xc9, 0x38, 0x09, 0xfb, 0x2e, 0xdc, 0x66, 0x4b, 0xfd, 0x61, 0xfc, 0x86, 0x1d,
+	0x5f, 0x20, 0xb7, 0x70, 0xee, 0xda, 0x64, 0x25, 0x94, 0x12, 0x75, 0xce, 0x1a, 0xa8, 0x79, 0xa9,
+	0x5b, 0x6f, 0x1c, 0x91, 0xc9, 0x8d, 0xc7, 0x7e, 0x6c, 0x2f, 0x1d, 0xaf, 0x2f, 0x1d, 0x6f, 0x2e,
+	0x1d, 0x3f, 0x43, 0x51, 0x27, 0x7e, 0xdf, 0x85, 0x57, 0x67, 0xd3, 0x3b, 0x46, 0x7e, 0x6d, 0xd5,
+	0xa9, 0x15, 0x5d, 0x70, 0xf6, 0xac, 0x5b, 0x2d, 0x32, 0x13, 0xc0, 0x9a, 0xcd, 0x01, 0xbc, 0xeb,
+	0xff, 0x5b, 0xe4, 0xf5, 0x5d, 0x78, 0x65, 0x34, 0x75, 0x8d, 0xfa, 0x66, 0x10, 0x5f, 0x00, 0x3c,
+	0x8d, 0x7e, 0x7f, 0x0b, 0xc9, 0xe7, 0x5f, 0xdf, 0x1f, 0xee, 0x0f, 0xcd, 0xfb, 0xb4, 0xe9, 0x9e,
+	0x6d, 0x44, 0xf2, 0xea, 0xc7, 0x32, 0x20, 0x67, 0xcb, 0x80, 0x9c, 0x2f, 0x03, 0xf2, 0x73, 0x19,
+	0x90, 0x2f, 0xab, 0x60, 0x74, 0xb6, 0x0a, 0x46, 0xe7, 0xab, 0x60, 0xf4, 0x2e, 0xce, 0x85, 0x2e,
+	0x16, 0x59, 0x3c, 0xc3, 0x8a, 0xae, 0x27, 0x3c, 0xaa, 0x41, 0x7f, 0x44, 0x79, 0x4a, 0xff, 0x1a,
+	0xa7, 0xdb, 0x06, 0x54, 0xb6, 0x6b, 0x1a, 0xf7, 0xe4, 0x4f, 0x00, 0x00, 0x00, 0xff, 0xff, 0x4c,
+	0x34, 0x22, 0xd7, 0xe9, 0x02, 0x00, 0x00,
 }
 
 func (this *Params) Equal(that interface{}) bool {
@@ -172,6 +186,9 @@ func (this *Params) Equal(that interface{}) bool {
 	if !this.ProofMissingPenalty.Equal(that1.ProofMissingPenalty) {
 		return false
 	}
+	if !this.ProofSubmissionFee.Equal(that1.ProofSubmissionFee) {
+		return false
+	}
 	return true
 }
 func (m *Params) Marshal() (dAtA []byte, err error) {
@@ -194,6 +211,18 @@ func (m *Params) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if m.ProofSubmissionFee != nil {
+		{
+			size, err := m.ProofSubmissionFee.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintParams(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x2a
+	}
 	if m.ProofMissingPenalty != nil {
 		{
 			size, err := m.ProofMissingPenalty.MarshalToSizedBuffer(dAtA[:i])
@@ -258,6 +287,10 @@ func (m *Params) Size() (n int) {
 		l = m.ProofMissingPenalty.Size()
 		n += 1 + l + sovParams(uint64(l))
 	}
+	if m.ProofSubmissionFee != nil {
+		l = m.ProofSubmissionFee.Size()
+		n += 1 + l + sovParams(uint64(l))
+	}
 	return n
 }
 
@@ -396,6 +429,42 @@ func (m *Params) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 5:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ProofSubmissionFee", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowParams
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthParams
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthParams
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.ProofSubmissionFee == nil {
+				m.ProofSubmissionFee = &types.Coin{}
+			}
+			if err := m.ProofSubmissionFee.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipParams(dAtA[iNdEx:])
diff --git a/x/tokenomics/types/tx.pb.go b/x/tokenomics/types/tx.pb.go
index 9f18a148c..e4fec264c 100644
--- a/x/tokenomics/types/tx.pb.go
+++ b/x/tokenomics/types/tx.pb.go
@@ -125,6 +125,7 @@ type MsgUpdateParam struct {
 	// specified in the `Params` message in `proof/params.proto.`
 	Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
 	// Types that are valid to be assigned to AsType:
+	//
 	//	*MsgUpdateParam_AsString
 	//	*MsgUpdateParam_AsInt64
 	//	*MsgUpdateParam_AsBytes