diff --git a/docs/papers/hbs2-browser/design.tex b/docs/papers/hbs2-browser/design.tex
index 9ba65525..2f36ec09 100644
--- a/docs/papers/hbs2-browser/design.tex
+++ b/docs/papers/hbs2-browser/design.tex
@@ -19,6 +19,22 @@
   \item Требуется включение/исключение авторов.
 \end{enumerate}
 
+\section{Стейт}
+
+Исходя из требований, введём стейт как рефчан блоков транзакций, где каждая транзакция содержит
+ссылку на блок, а каждый блок является \term{sstable}{sstable}, т.е индексированным, однократно
+записываемым отсортированным множеством пар \texttt{(ключ, значение)}.
+
+Такой формат гарантирует нам, что одинаковая кодовая база (в плане настроек LSM и соглашений) будет
+порождать идентичные блоки.
+
+В тоже время --- каждая отдельная <<транзакция>>, то есть <<факт>> -- не будет порождать отдельного
+адресуемого объекта, таким образом, будут снижены все связанные с этим накладные расходы.
+
+При этом мы можем относительно быстро находить блок и проверять его наличие в прочих сегментах.
+
+
+
 
 % \section{Структуры данных и протоколы}
 
diff --git a/flake.lock b/flake.lock
index 45da053e..001f1feb 100644
--- a/flake.lock
+++ b/flake.lock
@@ -133,6 +133,21 @@
         "type": "github"
       }
     },
+    "flake-utils_7": {
+      "locked": {
+        "lastModified": 1644229661,
+        "narHash": "sha256-1YdnJAsNy69bpcjuoKdOYQX0YxZBiCYZo4Twxerqv7k=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3cecb5b042f7f209c56ffd8371b2711a290ec797",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "haskell-flake-utils": {
       "inputs": {
         "flake-utils": "flake-utils"
@@ -229,6 +244,24 @@
       "inputs": {
         "flake-utils": "flake-utils_6"
       },
+      "locked": {
+        "lastModified": 1698938553,
+        "narHash": "sha256-oXpTKXioqFbl2mhhvpJIAvgNd+wYyv4ekI+YnJHEJ6s=",
+        "owner": "ivanovs-4",
+        "repo": "haskell-flake-utils",
+        "rev": "19b273b5dc401a0a565e7f75cf50a593871b80c9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ivanovs-4",
+        "repo": "haskell-flake-utils",
+        "type": "github"
+      }
+    },
+    "haskell-flake-utils_7": {
+      "inputs": {
+        "flake-utils": "flake-utils_7"
+      },
       "locked": {
         "lastModified": 1672412555,
         "narHash": "sha256-Kaa8F7nQFR3KuS6Y9WRUxeJeZlp6CCubyrRfmiEsW4k=",
@@ -264,6 +297,27 @@
         "type": "github"
       }
     },
+    "lsm": {
+      "inputs": {
+        "haskell-flake-utils": "haskell-flake-utils_6",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1711033804,
+        "narHash": "sha256-z9cb5yuWfuZmGukxsZebXhc6KUZoPVT60oXxQ6j6ML8=",
+        "ref": "refs/heads/master",
+        "rev": "0e8286a43da5b9e54c4f3ecdb994173fe77351db",
+        "revCount": 26,
+        "type": "git",
+        "url": "https://git.hbs2.net/5BCaH95cWsVKBmWaDNLWQr2umxzzT5kqRRKNTm2J15Ls"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://git.hbs2.net/5BCaH95cWsVKBmWaDNLWQr2umxzzT5kqRRKNTm2J15Ls"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1707451808,
@@ -286,6 +340,7 @@
         "fixme": "fixme",
         "haskell-flake-utils": "haskell-flake-utils_4",
         "hspup": "hspup",
+        "lsm": "lsm",
         "nixpkgs": "nixpkgs",
         "saltine": "saltine",
         "suckless-conf": "suckless-conf_2"
@@ -332,7 +387,7 @@
     },
     "suckless-conf_2": {
       "inputs": {
-        "haskell-flake-utils": "haskell-flake-utils_6",
+        "haskell-flake-utils": "haskell-flake-utils_7",
         "nixpkgs": [
           "nixpkgs"
         ]
diff --git a/flake.nix b/flake.nix
index 8373d009..51294f2f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,6 +18,9 @@ inputs = {
     db-pipe.url = "git+https://git.hbs2.net/5xrwbTzzweS9yeJQnrrUY9gQJfhJf84pbyHhF2MMmSft";
     db-pipe.inputs.nixpkgs.follows = "nixpkgs";
 
+    lsm.url = "git+https://git.hbs2.net/5BCaH95cWsVKBmWaDNLWQr2umxzzT5kqRRKNTm2J15Ls";
+    lsm.inputs.nixpkgs.follows = "nixpkgs";
+
     saltine = {
       url = "github:tel/saltine/3d3a54cf46f78b71b4b55653482fb6f4cee6b77d";
       flake = false;
diff --git a/hbs2-git/hbs2-git-oracle/app/Main.hs b/hbs2-git/hbs2-git-oracle/app/Main.hs
index 2eff49f4..fa399b3d 100644
--- a/hbs2-git/hbs2-git-oracle/app/Main.hs
+++ b/hbs2-git/hbs2-git-oracle/app/Main.hs
@@ -1,5 +1,7 @@
 module Main where
 
+import HBS2.Git.Oracle.Prelude
+
 main :: IO ()
 main = do
   print "hbs2-git-oracle"
diff --git a/hbs2-git/hbs2-git-oracle/lib/HBS2/Git/Oracle/App.hs b/hbs2-git/hbs2-git-oracle/lib/HBS2/Git/Oracle/App.hs
new file mode 100644
index 00000000..f61ed714
--- /dev/null
+++ b/hbs2-git/hbs2-git-oracle/lib/HBS2/Git/Oracle/App.hs
@@ -0,0 +1,31 @@
+module HBS2.Git.Oracle.App where
+
+import HBS2.Git.Oracle.Prelude
+
+import Control.Monad.Reader
+
+data OracleEnv =
+  OracleEnv
+  {
+  }
+  deriving stock (Generic)
+
+newtype Oracle m a =
+  Oracle { fromOracle :: ReaderT OracleEnv m a }
+  deriving newtype ( Applicative
+                   , Functor
+                   , Monad
+                   , MonadTrans
+                   , MonadReader OracleEnv
+                   , MonadIO
+                   , MonadUnliftIO
+                   )
+
+newOracleEnv :: MonadIO m => m OracleEnv
+newOracleEnv = pure OracleEnv
+
+withOracleEnv ::  MonadIO m => OracleEnv -> Oracle m a -> m a
+withOracleEnv env m = runReaderT (fromOracle m) env
+
+
+
diff --git a/hbs2-git/hbs2-git-oracle/lib/HBS2/Git/Oracle/Prelude.hs b/hbs2-git/hbs2-git-oracle/lib/HBS2/Git/Oracle/Prelude.hs
new file mode 100644
index 00000000..5dfb14e8
--- /dev/null
+++ b/hbs2-git/hbs2-git-oracle/lib/HBS2/Git/Oracle/Prelude.hs
@@ -0,0 +1,12 @@
+module HBS2.Git.Oracle.Prelude
+  ( module HBS2.Prelude.Plated
+  , module Control.Monad.Reader.Class
+  , module UnliftIO
+  ) where
+
+import HBS2.Prelude.Plated
+
+import Control.Monad.Reader.Class
+import UnliftIO
+
+
diff --git a/hbs2-git/hbs2-git.cabal b/hbs2-git/hbs2-git.cabal
index 4b3960f0..ba1b006d 100644
--- a/hbs2-git/hbs2-git.cabal
+++ b/hbs2-git/hbs2-git.cabal
@@ -168,13 +168,28 @@ executable git-remote-hbs2
     default-language: GHC2021
 
 
+library hbs2-git-oracle-oracle-lib
+    import:           shared-properties
+
+    exposed-modules:
+      HBS2.Git.Oracle.Prelude
+      HBS2.Git.Oracle.App
+
+    build-depends:    base
+                    , base16-bytestring
+                    , binary
+                    , unix
+
+    hs-source-dirs:  hbs2-git-oracle/lib
+
+
 executable hbs2-git-oracle
     import:           shared-properties
     main-is:          Main.hs
     -- other-modules:
     -- other-extensions:
     build-depends:
-        base, hbs2-git
+        base, hbs2-git, hbs2-git-oracle-oracle-lib
         , binary
         , vector
         , optparse-applicative