diff --git a/Cargo.lock b/Cargo.lock
index 064de6c..b90a522 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -987,9 +987,11 @@ name = "duniter-gva-indexer"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "bincode",
  "dubp",
  "duniter-core",
  "duniter-gva-db",
+ "lz4_flex",
  "maplit",
  "once_cell",
  "resiter",
@@ -1627,6 +1629,12 @@ dependencies = [
  "cfg-if 1.0.0",
 ]
 
+[[package]]
+name = "lz4_flex"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05304f8e67dfc93d1b4b990137fd1a7a4c6ad44b60a9c486c8c4486f9d2027ae"
+
 [[package]]
 name = "maplit"
 version = "1.0.2"
diff --git a/db/Cargo.toml b/db/Cargo.toml
index 191f051..04ceb64 100644
--- a/db/Cargo.toml
+++ b/db/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 path = "src/lib.rs"
 
 [dependencies]
-bincode = "1.2.1"
+bincode = "1.3"
 chrono = { version = "0.4.15", optional = true }
 duniter-core = { git = "https://git.duniter.org/nodes/rust/duniter-core" }
 dubp = { version = "0.53.1", features = ["duniter"] }
diff --git a/indexer/Cargo.toml b/indexer/Cargo.toml
index 71ebcd6..c49f07b 100644
--- a/indexer/Cargo.toml
+++ b/indexer/Cargo.toml
@@ -13,9 +13,11 @@ path = "src/lib.rs"
 
 [dependencies]
 anyhow = "1.0.34"
+bincode = "1.3"
 duniter-core = { git = "https://git.duniter.org/nodes/rust/duniter-core" }
 duniter-gva-db = { path = "../db" }
 dubp = { version = "0.53.1", features = ["duniter"] }
+lz4_flex = { version = "0.7", default-features = false }
 once_cell = "1.5.2"
 resiter = "0.4.0"
 
diff --git a/indexer/src/blocks_chunks.rs b/indexer/src/blocks_chunks.rs
new file mode 100644
index 0000000..aa8433e
--- /dev/null
+++ b/indexer/src/blocks_chunks.rs
@@ -0,0 +1,79 @@
+//  Copyright (C) 2020 Éloïs SANCHEZ.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+use crate::*;
+
+pub(super) fn apply_block_blocks_chunk<B: Backend>(
+    block: &DubpBlockV10,
+    gva_db: &mut GvaV1DbTxRw<B::Col>,
+) -> KvResult<()> {
+    let block_number = block.number().0;
+    gva_db.current_blocks_chunk.upsert(
+        U32BE(block_number),
+        GvaBlockDbV1(DubpBlock::V10(block.clone())),
+    );
+
+    if block_number % 1_000 == 999 {
+        let current_chunk: Vec<GvaBlockDbV1> = gva_db
+            .current_blocks_chunk
+            .iter(.., |it| it.values().collect::<Result<Vec<_>, _>>())?;
+        let current_chunk_bin =
+            bincode::serialize(&current_chunk).map_err(|e| KvError::DeserError(e.into()))?;
+        let chunk_hash = Hash::compute_blake3(current_chunk_bin.as_ref());
+        let compressed_chunk = lz4_flex::compress_prepend_size(current_chunk_bin.as_ref());
+        let chunk_index = U32BE(block_number / 1_000);
+        gva_db
+            .blocks_chunk_hash
+            .upsert(chunk_index, HashDb(chunk_hash));
+        gva_db
+            .compressed_blocks_chunk
+            .upsert(chunk_index, compressed_chunk);
+    }
+
+    Ok(())
+}
+
+pub(super) fn revert_block_blocks_chunk<B: Backend>(
+    block: &DubpBlockV10,
+    gva_db: &mut GvaV1DbTxRw<B::Col>,
+) -> KvResult<()> {
+    let block_number = block.number().0;
+    if block_number % 1_000 == 999 {
+        // Uncompress las compressed chunk and replace it in current chunk
+        let chunk_index = U32BE(block_number / 1_000);
+        if let Some(compressed_chunk) = gva_db.compressed_blocks_chunk.get(&chunk_index)? {
+            gva_db.blocks_chunk_hash.remove(chunk_index);
+            gva_db.compressed_blocks_chunk.remove(chunk_index);
+            let current_chunk_bin = lz4_flex::decompress_size_prepended(compressed_chunk.as_ref())
+                .map_err(|e| KvError::Custom(format!("{:?}", e).into()))?;
+            let current_chunk: Vec<GvaBlockDbV1> = bincode::deserialize(current_chunk_bin.as_ref())
+                .map_err(|e| KvError::DeserError(e.into()))?;
+            let current_chunk_begin = block_number - 999;
+            for (i, block) in current_chunk.into_iter().enumerate() {
+                gva_db
+                    .current_blocks_chunk
+                    .upsert(U32BE(current_chunk_begin + i as u32), block);
+            }
+        } else {
+            return Err(KvError::DbCorrupted(
+                "Not found last compressed chunk".to_owned(),
+            ));
+        }
+    } else {
+        gva_db.current_blocks_chunk.remove(U32BE(block_number));
+    }
+
+    Ok(())
+}
diff --git a/indexer/src/lib.rs b/indexer/src/lib.rs
index 8578580..20cc798 100644
--- a/indexer/src/lib.rs
+++ b/indexer/src/lib.rs
@@ -22,6 +22,7 @@
     unused_import_braces
 )]
 
+mod blocks_chunks;
 mod identities;
 mod tx;
 mod utxos;
@@ -75,6 +76,7 @@ pub fn apply_block<B: Backend>(block: &DubpBlockV10, gva_db: &GvaV1Db<B>) -> KvR
         hash: block.hash(),
     };
     gva_db.write(|mut db| {
+        blocks_chunks::apply_block_blocks_chunk::<B>(block, &mut db)?;
         db.blocks_by_common_time
             .upsert(U64BE(block.common_time()), block.number().0);
         db.blockchain_time
@@ -102,6 +104,7 @@ pub fn apply_block<B: Backend>(block: &DubpBlockV10, gva_db: &GvaV1Db<B>) -> KvR
 
 pub fn revert_block<B: Backend>(block: &DubpBlockV10, gva_db: &GvaV1Db<B>) -> KvResult<()> {
     gva_db.write(|mut db| {
+        blocks_chunks::revert_block_blocks_chunk::<B>(block, &mut db)?;
         db.blocks_by_common_time.remove(U64BE(block.common_time()));
         db.blockchain_time.remove(U32BE(block.number().0));
         identities::revert_identities::<B>(&block, &mut db.gva_identities)?;