diff --git a/Cargo.lock b/Cargo.lock
index 4d89ecb..12caf0c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,11 +4,11 @@ version = 3
 
 [[package]]
 name = "ahash"
-version = "0.7.2"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f200cbb1e856866d9eade941cf3aa0c5d7dd36f74311c4273b494f4ef036957"
+checksum = "43bb833f0bf979d8475d38fbf09ed3b8a55e1885fe93ad3f93239fc6a4f17b98"
 dependencies = [
- "getrandom 0.2.2",
+ "getrandom 0.2.3",
  "once_cell",
  "version_check",
 ]
@@ -104,9 +104,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.67"
+version = "1.0.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3c69b077ad434294d3ce9f1f6143a2a4b89a8a2d54ef813d85003a4fd1137fd"
+checksum = "4a72c244c1ff497a746a7e1fb3d14bd08420ecda70c8f25c7112f2781652d787"
 
 [[package]]
 name = "cfg-if"
@@ -340,9 +340,9 @@ checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
 [[package]]
 name = "erased-serde"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0465971a8cc1fa2455c8465aaa377131e1f1cf4983280f474a13e68793aa770c"
+checksum = "e5b36e6f2295f393f44894c6031f67df4d185b984cd54d08f768ce678007efcd"
 dependencies = [
  "serde",
 ]
@@ -392,9 +392,9 @@ checksum = "7360491ce676a36bf9bb3c56c1aa791658183a54d2744120f27285738d90465a"
 
 [[package]]
 name = "fluence"
-version = "0.6.8"
+version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a92116bbed3be3afee952d62d6009f1a365bde985a1cf59fb933144308660743"
+checksum = "88b09e1cd11a51ba4d169db347d009fe41ece2714eef4d5df720343733a1d5a6"
 dependencies = [
  "fluence-sdk-main",
  "marine-macro",
@@ -457,9 +457,9 @@ dependencies = [
 
 [[package]]
 name = "fluence-sdk-main"
-version = "0.6.8"
+version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcbf30472768d331ea6a6853bdf1fc6166ba697d46a9ce74c3ccf5764a58414a"
+checksum = "68d93cde99e1494e11755a39b93863333397245c9959c774fe3bebd9e4143879"
 dependencies = [
  "log",
  "marine-macro",
@@ -569,9 +569,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
+checksum = "7fcd999463524c52659517fe2cea98493cfe485d10565e7b0fb07dbba7ad2753"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
@@ -852,18 +852,18 @@ dependencies = [
 
 [[package]]
 name = "marine-macro"
-version = "0.6.8"
+version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9107f5956f578d4815a17c963836cffadf481801ae453e0247693e87f1de734"
+checksum = "f63d927851847cc3dd9e3bd0f10bdeb313859d4822d5b5f650d9d34d461ed419"
 dependencies = [
  "marine-macro-impl",
 ]
 
 [[package]]
 name = "marine-macro-impl"
-version = "0.6.8"
+version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7244dd6e5d624bb9d1e63777c3bbc3a8c857973d2b7633aa8d0b612d7770a55d"
+checksum = "fb504be4a90e229ab453c7369cc8a9063acec819f3397802eea719cd0a232be1"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -958,9 +958,9 @@ dependencies = [
 
 [[package]]
 name = "marine-timestamp-macro"
-version = "0.6.8"
+version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecb3037577a262360b7e2f0fb5470b7ad0aabcefcb8d2421a4871a854d0a37b2"
+checksum = "5994c7db5567d21609f2a2e5a40d9d4564f86c17ca35b2d77007152619b9d7fc"
 dependencies = [
  "chrono",
  "quote",
@@ -1157,9 +1157,9 @@ checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.26"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a152013215dca273577e18d2bf00fa862b89b24169fb78c4c95aeb07992c9cec"
+checksum = "f0d8caf72986c1a598726adc988bb5984792ef84f5ee5aa50209145ee8077038"
 dependencies = [
  "unicode-xid",
 ]
@@ -1197,9 +1197,9 @@ dependencies = [
 
 [[package]]
 name = "rayon"
-version = "1.5.0"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b0d8e0819fadc20c74ea8373106ead0600e3a67ef1fe8da56e39b9ae7275674"
+checksum = "c06aca804d41dbc8ba42dfd964f0d01334eceb64314b9ecf7c5fad5188a06d90"
 dependencies = [
  "autocfg",
  "crossbeam-deque",
@@ -1209,9 +1209,9 @@ dependencies = [
 
 [[package]]
 name = "rayon-core"
-version = "1.9.0"
+version = "1.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ab346ac5921dc62ffa9f89b7a773907511cdfa5490c572ae9be1be33e8afa4a"
+checksum = "d78120e2c850279833f1dd3582f730c4ab53ed95aeaaaa862a2a5c71b1656d8e"
 dependencies = [
  "crossbeam-channel",
  "crossbeam-deque",
@@ -1394,18 +1394,18 @@ checksum = "ab0e7238dcc7b40a7be719a25365910f6807bd864f4cce6b2e6b873658e2b19d"
 
 [[package]]
 name = "thiserror"
-version = "1.0.24"
+version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0f4a65597094d4483ddaed134f409b2cb7c1beccf25201a9f73c719254fa98e"
+checksum = "fa6f76457f59514c7eeb4e59d891395fab0b2fd1d40723ae737d64153392e9c6"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.24"
+version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7765189610d8241a44529806d6fd1f2e0a08734313a35d5b3a556f92b381f3c0"
+checksum = "8a36768c0fbf1bb15eca10defa29526bda730a2376c2ab4393ccfa16fb1a318d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1486,14 +1486,14 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
 dependencies = [
- "getrandom 0.2.2",
+ "getrandom 0.2.3",
 ]
 
 [[package]]
 name = "vcpkg"
-version = "0.2.12"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cbdbff6266a24120518560b5dc983096efb98462e51d0d68169895b237be3e5d"
+checksum = "025ce40a007e1907e58d5bc1a594def78e5573bb0b1160bc389634e8f12e4faa"
 
 [[package]]
 name = "version_check"
diff --git a/artifacts/aqua-dht.aqua b/artifacts/aqua-dht.aqua
new file mode 100644
index 0000000..4ffbdbc
--- /dev/null
+++ b/artifacts/aqua-dht.aqua
@@ -0,0 +1,74 @@
+data RegisterKeyResult:
+  success: bool
+  error: string
+
+data PutValueResult:
+  success: bool
+  error: string
+
+data RepublishValuesResult:
+  success: bool
+  error: string
+  updated: u64
+
+data ClearExpiredResult:
+  success: bool
+  error: string
+  count_keys: u64
+  count_values: u64
+
+data Key:
+  key: string
+  peer_id: string
+  timestamp_created: u64
+
+data GetKeyMetadataResult:
+  success: bool
+  error: string
+  key: Key
+
+data Record:
+  value: string
+  peer_id: string
+  relay_id: []string
+  service_id: []string
+  timestamp_created: u64
+
+data GetValuesResult:
+  success: bool
+  error: string
+  result: []Record
+
+data RepublishKeyResult:
+  success: bool
+  error: string
+
+data EvictStaleItem:
+  key: Key
+  records: []Record
+
+data EvictStaleResult:
+  success: bool
+  error: string
+  results: []EvictStaleItem
+
+service Aqua Dht:
+  republish_key: Key,u64 -> RepublishKeyResult
+
+  put_value: string,string,u64,[]string,[]string -> PutValueResult
+
+  get_values: string,u64 -> GetValuesResult
+
+  get_key_metadata: string,u64 -> GetKeyMetadataResult
+
+  register_key: string,u64 -> RegisterKeyResult
+
+  evict_stale: u64 -> EvictStaleResult
+
+  clear_expired: u64 -> ClearExpiredResult
+
+  republish_values: string,[]Record,u64 -> RepublishValuesResult
+
+
+New version is available! 0.6.3 -> 0.6.4
+To update run: cargo +nightly install marine --force
diff --git a/build.sh b/build.sh
index e195c17..5368ef3 100755
--- a/build.sh
+++ b/build.sh
@@ -9,3 +9,4 @@ rm -f artifacts/*
 mkdir -p artifacts
 cp target/wasm32-wasi/release/aqua-dht.wasm artifacts/
 curl -L https://github.com/fluencelabs/sqlite/releases/download/v0.14.0_w/sqlite3.wasm -o artifacts/sqlite3.wasm
+marine aqua artifacts/aqua-dht.wasm > artifacts/aqua-dht.aqua
diff --git a/src/impls.rs b/src/impls.rs
index 3b5995e..5f7cd4d 100644
--- a/src/impls.rs
+++ b/src/impls.rs
@@ -36,6 +36,7 @@ pub(crate) fn check_timestamp_tetraplets(call_parameters: &CallParameters, arg_n
     let tetraplet = tetraplets.get(0).wrap_err(error_msg)?;
     (tetraplet.service_id == TRUSTED_TIMESTAMP_SERVICE_ID &&
         tetraplet.function_name == TRUSTED_TIMESTAMP_FUNCTION_NAME).then(|| ()).wrap_err(error_msg)
+    // TODO check host_id == peer_pk(???)
 }
 
 #[inline]