diff --git a/batcher/Cargo.lock b/batcher/Cargo.lock
index 7f7a1e5..28a6be4 100644
--- a/batcher/Cargo.lock
+++ b/batcher/Cargo.lock
@@ -47,6 +47,18 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "aligned-vec"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4aa90d7ce82d4be67b64039a3d588d38dbcc6736577de4a847025ce5b0c468d1"
+
+[[package]]
+name = "allocator-api2"
+version = "0.2.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c6cb57a04249c6480766f7f7cef5467412af1490f8d1e243141daddada3264f"
+
 [[package]]
 name = "anstream"
 version = "0.6.15"
@@ -96,6 +108,29 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "anyhow"
+version = "1.0.91"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c042108f3ed77fd83760a5fd79b53be043192bb3b9dba91d8c574c0ada7850c8"
+
+[[package]]
+name = "arbitrary"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d5a26814d8dcb93b0e5a0ff3c6d80a8843bafb21b39e8e18a6f05471870e110"
+
+[[package]]
+name = "arg_enum_proc_macro"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ae92a5119aa49cdbcf6b9f893fe4e1d98b04ccbf82ee0584ad948a44a734dea"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.85",
+]
+
 [[package]]
 name = "arrayvec"
 version = "0.7.6"
@@ -150,6 +185,29 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
+[[package]]
+name = "av1-grain"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6678909d8c5d46a42abcf571271e15fdbc0a225e3646cf23762cd415046c78bf"
+dependencies = [
+ "anyhow",
+ "arrayvec",
+ "log",
+ "nom",
+ "num-rational",
+ "v_frame",
+]
+
+[[package]]
+name = "avif-serialize"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e335041290c43101ca215eed6f43ec437eb5a42125573f600fc3fa42b9bddd62"
+dependencies = [
+ "arrayvec",
+]
+
 [[package]]
 name = "backtrace"
 version = "0.3.74"
@@ -227,6 +285,12 @@ version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "349f9b6a179ed607305526ca489b34ad0a41aed5f7980fa90eb03160b69598fb"
 
+[[package]]
+name = "bit_field"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc827186963e592360843fb5ba4b973e145841266c1357f7180c43526f2e5b61"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -239,6 +303,12 @@ version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
 
+[[package]]
+name = "bitstream-io"
+version = "2.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b81e1519b0d82120d2fd469d5bfb2919a9361c48b02d82d04befc1cdd2002452"
+
 [[package]]
 name = "bitvec"
 version = "1.0.1"
@@ -270,6 +340,12 @@ dependencies = [
  "tinyvec",
 ]
 
+[[package]]
+name = "built"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c360505aed52b7ec96a3636c3f039d99103c37d1d9b4f7a8c743d3ea9ffcd03b"
+
 [[package]]
 name = "bumpalo"
 version = "3.16.0"
@@ -282,12 +358,24 @@ version = "1.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c3ac9f8b63eca6fd385229b3675f6cc0dc5c8a5c8a54a59d4f52ffd670d87b0c"
 
+[[package]]
+name = "bytemuck"
+version = "1.19.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8334215b81e418a0a7bdb8ef0849474f40bb10c8b71f1c4ed315cff49f32494d"
+
 [[package]]
 name = "byteorder"
 version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
+[[package]]
+name = "byteorder-lite"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f1fe948ff07f4bd06c30984e69f5b4899c516a3ef74f34df92a2df2ab535495"
+
 [[package]]
 name = "bytes"
 version = "1.8.0"
@@ -361,6 +449,16 @@ dependencies = [
  "shlex",
 ]
 
+[[package]]
+name = "cfg-expr"
+version = "0.15.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d067ad48b8650848b989a59a86c6c36a995d02d2bf778d45c3c5d57bc2718f02"
+dependencies = [
+ "smallvec",
+ "target-lexicon",
+]
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -478,6 +576,12 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "color_quant"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
+
 [[package]]
 name = "colorchoice"
 version = "1.0.2"
@@ -808,8 +912,11 @@ dependencies = [
  "bincode",
  "clap",
  "ethers",
+ "image",
  "lambdaworks-crypto",
  "lambdaworks-math",
+ "qrcode",
+ "rqrr",
  "serde",
  "serde_json",
  "sha3",
@@ -1134,6 +1241,21 @@ dependencies = [
  "yansi",
 ]
 
+[[package]]
+name = "exr"
+version = "1.73.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f83197f59927b46c04a183a619b7c29df34e63e63c7869320862268c0ef687e0"
+dependencies = [
+ "bit_field",
+ "half",
+ "lebe",
+ "miniz_oxide",
+ "rayon-core",
+ "smallvec",
+ "zune-inflate",
+]
+
 [[package]]
 name = "eyre"
 version = "0.6.12"
@@ -1150,6 +1272,15 @@ version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e8c02a5121d4ea3eb16a80748c74f5549a5665e4c21333c6098f283870fbdea6"
 
+[[package]]
+name = "fdeflate"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07c6f4c64c1d33a3111c4466f7365ebdcc37c5bd1ea0d62aae2e3d722aacbedb"
+dependencies = [
+ "simd-adler32",
+]
+
 [[package]]
 name = "ff"
 version = "0.13.0"
@@ -1194,6 +1325,12 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foldhash"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f81ec6369c545a7d40e4589b5597581fa1c441fe1cce96dd1de43159910a36a2"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.1"
@@ -1337,6 +1474,34 @@ dependencies = [
  "byteorder",
 ]
 
+[[package]]
+name = "g2gen"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc3e32f911a41e073b8492473c3595a043e1369ab319a2dbf8c89b1fea06457c"
+dependencies = [
+ "g2poly",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.85",
+]
+
+[[package]]
+name = "g2p"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a9afa6efed9af3a5a68ba066429c1497c299d4eafbd948fe630df47a8f2d29f"
+dependencies = [
+ "g2gen",
+ "g2poly",
+]
+
+[[package]]
+name = "g2poly"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fd8b261ccf00df8c5cc60c082bb7d7aa64c33a433cfcc091ca244326c924b2c"
+
 [[package]]
 name = "generic-array"
 version = "0.14.7"
@@ -1359,6 +1524,16 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "gif"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fb2d69b19215e18bb912fa30f7ce15846e301408695e44e0ef719f1da9e19f2"
+dependencies = [
+ "color_quant",
+ "weezl",
+]
+
 [[package]]
 name = "gimli"
 version = "0.31.1"
@@ -1413,11 +1588,26 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "half"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6dd08c532ae367adf81c312a4580bc67f1d0fe8bc9c460520283f4c0ff277888"
+dependencies = [
+ "cfg-if",
+ "crunchy",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e087f84d4f86bf4b218b927129862374b72199ae7d8657835f1e89000eea4fb"
+dependencies = [
+ "allocator-api2",
+ "equivalent",
+ "foldhash",
+]
 
 [[package]]
 name = "hashers"
@@ -1546,6 +1736,45 @@ dependencies = [
  "unicode-normalization",
 ]
 
+[[package]]
+name = "image"
+version = "0.25.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc144d44a31d753b02ce64093d532f55ff8dc4ebf2ffb8a63c0dda691385acae"
+dependencies = [
+ "bytemuck",
+ "byteorder-lite",
+ "color_quant",
+ "exr",
+ "gif",
+ "image-webp",
+ "num-traits",
+ "png",
+ "qoi",
+ "ravif",
+ "rayon",
+ "rgb",
+ "tiff",
+ "zune-core",
+ "zune-jpeg",
+]
+
+[[package]]
+name = "image-webp"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e031e8e3d94711a9ccb5d6ea357439ef3dcbed361798bd4071dc4d9793fbe22f"
+dependencies = [
+ "byteorder-lite",
+ "quick-error",
+]
+
+[[package]]
+name = "imgref"
+version = "1.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d0263a3d970d5c054ed9312c0057b4f3bde9c0b33836d3637361d4a9e6e7a408"
+
 [[package]]
 name = "impl-codec"
 version = "0.6.0"
@@ -1618,6 +1847,17 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "interpolate_name"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c34819042dc3d3971c46c2190835914dfbe0c3c13f61449b2997f4e9722dfa60"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.85",
+]
+
 [[package]]
 name = "ipnet"
 version = "2.10.1"
@@ -1639,6 +1879,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba291022dbbd398a455acf126c1e341954079855bc60dfdda641363bd6922569"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.11"
@@ -1654,6 +1903,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "jpeg-decoder"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f5d4a7da358eff58addd2877a45865158f0d78c911d43a5784ceb7bbf52833b0"
+
 [[package]]
 name = "js-sys"
 version = "0.3.72"
@@ -1709,7 +1964,7 @@ dependencies = [
  "ascii-canvas",
  "bit-set",
  "ena",
- "itertools",
+ "itertools 0.11.0",
  "lalrpop-util",
  "petgraph",
  "regex",
@@ -1759,12 +2014,29 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
+[[package]]
+name = "lebe"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03087c2bad5e1034e8cace5926dec053fb3790248370865f5117a7d0213354c8"
+
 [[package]]
 name = "libc"
 version = "0.2.161"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e9489c2807c139ffd9c1794f4af0ebe86a828db53ecdc7fea2111d0fed085d1"
 
+[[package]]
+name = "libfuzzer-sys"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a96cfd5557eb82f2b83fed4955246c988d331975a002961b07c81584d107e7f7"
+dependencies = [
+ "arbitrary",
+ "cc",
+ "once_cell",
+]
+
 [[package]]
 name = "libm"
 version = "0.2.11"
@@ -1803,6 +2075,33 @@ version = "0.4.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
 
+[[package]]
+name = "loop9"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fae87c125b03c1d2c0150c90365d7d6bcc53fb73a9acaef207d2d065860f062"
+dependencies = [
+ "imgref",
+]
+
+[[package]]
+name = "lru"
+version = "0.12.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "234cf4f4a04dc1f57e24b96cc0cd600cf2af460d4161ac5ecdd0af8e1f3b2a38"
+dependencies = [
+ "hashbrown",
+]
+
+[[package]]
+name = "maybe-rayon"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ea1f30cedd69f0a2954655f7188c6a834246d2bcf1e315e2ac40c4b24dc9519"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "md-5"
 version = "0.10.6"
@@ -1825,6 +2124,12 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "minimal-lexical"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
+
 [[package]]
 name = "miniz_oxide"
 version = "0.8.0"
@@ -1832,6 +2137,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2d80299ef12ff69b16a84bb182e3b9df68b5a91574d3d4fa6e41b65deec4df1"
 dependencies = [
  "adler2",
+ "simd-adler32",
 ]
 
 [[package]]
@@ -1852,6 +2158,22 @@ version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "650eef8c711430f1a879fdd01d4745a7deea475becfb90269c06775983bbf086"
 
+[[package]]
+name = "nom"
+version = "7.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
+dependencies = [
+ "memchr",
+ "minimal-lexical",
+]
+
+[[package]]
+name = "noop_proc_macro"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0676bb32a98c1a483ce53e500a81ad9c3d5b3f7c920c28c24e9cb0980d0b5bc8"
+
 [[package]]
 name = "num-bigint"
 version = "0.4.6"
@@ -1868,6 +2190,17 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
 
+[[package]]
+name = "num-derive"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed3955f1a9c7c0c15e092f9c887db08b1fc683305fdf6eb6684f22555355e202"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.85",
+]
+
 [[package]]
 name = "num-integer"
 version = "0.1.46"
@@ -1877,6 +2210,17 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "num-rational"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f83d14da390562dca69fc84082e73e548e1ad308d24accdedd2720017cb37824"
+dependencies = [
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.19"
@@ -2024,6 +2368,12 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "paste"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
+
 [[package]]
 name = "path-slash"
 version = "0.2.1"
@@ -2186,6 +2536,19 @@ version = "0.3.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "953ec861398dccce10c670dfeaf3ec4911ca479e9c02154b3a215178c5f566f2"
 
+[[package]]
+name = "png"
+version = "0.17.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52f9d46a34a05a6a57566bc2bfae066ef07585a6e3fa30fbbdff5936380623f0"
+dependencies = [
+ "bitflags 1.3.2",
+ "crc32fast",
+ "fdeflate",
+ "flate2",
+ "miniz_oxide",
+]
+
 [[package]]
 name = "powerfmt"
 version = "0.2.0"
@@ -2249,6 +2612,25 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "profiling"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afbdc74edc00b6f6a218ca6a5364d6226a259d4b8ea1af4a0ea063f27e179f4d"
+dependencies = [
+ "profiling-procmacros",
+]
+
+[[package]]
+name = "profiling-procmacros"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a65f2e60fbf1063868558d69c6beacf412dc755f9fc020f514b7955fc914fe30"
+dependencies = [
+ "quote",
+ "syn 2.0.85",
+]
+
 [[package]]
 name = "proptest"
 version = "1.5.0"
@@ -2265,6 +2647,30 @@ dependencies = [
  "unarray",
 ]
 
+[[package]]
+name = "qoi"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f6d64c71eb498fe9eae14ce4ec935c555749aef511cca85b5568910d6e48001"
+dependencies = [
+ "bytemuck",
+]
+
+[[package]]
+name = "qrcode"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d68782463e408eb1e668cf6152704bd856c78c5b6417adaee3203d8f4c1fc9ec"
+dependencies = [
+ "image",
+]
+
+[[package]]
+name = "quick-error"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a993555f31e5a609f617c12db6250dedcac1b0a85076912c436e6fc9b2c8e6a3"
+
 [[package]]
 name = "quote"
 version = "1.0.37"
@@ -2319,6 +2725,55 @@ dependencies = [
  "rand_core",
 ]
 
+[[package]]
+name = "rav1e"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd87ce80a7665b1cce111f8a16c1f3929f6547ce91ade6addf4ec86a8dda5ce9"
+dependencies = [
+ "arbitrary",
+ "arg_enum_proc_macro",
+ "arrayvec",
+ "av1-grain",
+ "bitstream-io",
+ "built",
+ "cfg-if",
+ "interpolate_name",
+ "itertools 0.12.1",
+ "libc",
+ "libfuzzer-sys",
+ "log",
+ "maybe-rayon",
+ "new_debug_unreachable",
+ "noop_proc_macro",
+ "num-derive",
+ "num-traits",
+ "once_cell",
+ "paste",
+ "profiling",
+ "rand",
+ "rand_chacha",
+ "simd_helpers",
+ "system-deps",
+ "thiserror",
+ "v_frame",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "ravif"
+version = "0.11.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2413fd96bd0ea5cdeeb37eaf446a22e6ed7b981d792828721e74ded1980a45c6"
+dependencies = [
+ "avif-serialize",
+ "imgref",
+ "loop9",
+ "quick-error",
+ "rav1e",
+ "rgb",
+]
+
 [[package]]
 name = "rayon"
 version = "1.10.0"
@@ -2439,6 +2894,12 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "rgb"
+version = "0.8.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57397d16646700483b67d2dd6511d79318f9d057fdbd21a4066aeac8b41d310a"
+
 [[package]]
 name = "ring"
 version = "0.16.20"
@@ -2500,6 +2961,17 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "rqrr"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "48eaf9c75f2a8f231b09036c115a45a9845313f7faa6a39fa45a2a2bd06a27c7"
+dependencies = [
+ "g2p",
+ "image",
+ "lru",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.24"
@@ -2792,6 +3264,21 @@ dependencies = [
  "rand_core",
 ]
 
+[[package]]
+name = "simd-adler32"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d66dc143e6b11c1eddc06d5c423cfc97062865baf299914ab64caa38182078fe"
+
+[[package]]
+name = "simd_helpers"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95890f873bec569a0362c235787f3aca6e1e887302ba4840839bcc6459c42da6"
+dependencies = [
+ "quote",
+]
+
 [[package]]
 name = "simple_asn1"
 version = "0.6.2"
@@ -2841,7 +3328,7 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c425ce1c59f4b154717592f0bdf4715c3a1d55058883622d3157e1f0908a5b26"
 dependencies = [
- "itertools",
+ "itertools 0.11.0",
  "lalrpop",
  "lalrpop-util",
  "phf",
@@ -2993,12 +3480,31 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "system-deps"
+version = "6.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a3e535eb8dded36d55ec13eddacd30dec501792ff23a0b1682c38601b8cf2349"
+dependencies = [
+ "cfg-expr",
+ "heck",
+ "pkg-config",
+ "toml",
+ "version-compare",
+]
+
 [[package]]
 name = "tap"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
 
+[[package]]
+name = "target-lexicon"
+version = "0.12.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
+
 [[package]]
 name = "tempfile"
 version = "3.13.0"
@@ -3043,6 +3549,17 @@ dependencies = [
  "syn 2.0.85",
 ]
 
+[[package]]
+name = "tiff"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba1310fcea54c6a9a4fd1aad794ecc02c31682f6bfbecdf460bf19533eed1e3e"
+dependencies = [
+ "flate2",
+ "jpeg-decoder",
+ "weezl",
+]
+
 [[package]]
 name = "time"
 version = "0.3.36"
@@ -3368,6 +3885,23 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "v_frame"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6f32aaa24bacd11e488aa9ba66369c7cd514885742c9fe08cfe85884db3e92b"
+dependencies = [
+ "aligned-vec",
+ "num-traits",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "version-compare"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "852e951cb7832cb45cb1169900d19760cfa39b82bc0ea9c0e5a14ae88411c98b"
+
 [[package]]
 name = "version_check"
 version = "0.9.5"
@@ -3488,6 +4022,12 @@ version = "0.25.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5f20c57d8d7db6d3b86154206ae5d8fba62dd39573114de97c2cb0578251f8e1"
 
+[[package]]
+name = "weezl"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53a85b86a771b1c87058196170769dd264f66c0782acf1ae6cc51bfd64b39082"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -3510,7 +4050,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
 dependencies = [
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -3795,3 +4335,27 @@ dependencies = [
  "cc",
  "pkg-config",
 ]
+
+[[package]]
+name = "zune-core"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f423a2c17029964870cfaabb1f13dfab7d092a62a29a89264f4d36990ca414a"
+
+[[package]]
+name = "zune-inflate"
+version = "0.2.54"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73ab332fe2f6680068f3582b16a24f90ad7096d5d39b974d1c0aff0125116f02"
+dependencies = [
+ "simd-adler32",
+]
+
+[[package]]
+name = "zune-jpeg"
+version = "0.4.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "16099418600b4d8f028622f73ff6e3deaabdff330fb9a2a131dea781ee8b0768"
+dependencies = [
+ "zune-core",
+]
diff --git a/batcher/Cargo.toml b/batcher/Cargo.toml
index 1028068..dbdab86 100644
--- a/batcher/Cargo.toml
+++ b/batcher/Cargo.toml
@@ -17,3 +17,6 @@ bincode = { version = "2.0.0-rc.2", tag = "v2.0.0-rc.2", git = "https://github.c
 sha3 = "0.10.8"
 tokio = { version = "1.25", features = ["full"] }
 ethers = { version = "2.0.14"}
+qrcode = "0.14.1"
+image = "0.25.4"
+rqrr = "0.8.0"
diff --git a/batcher/src/main.rs b/batcher/src/main.rs
index 5dc4962..5588eb5 100644
--- a/batcher/src/main.rs
+++ b/batcher/src/main.rs
@@ -4,13 +4,15 @@ mod merkle_tree;
 use clap::{Parser, Subcommand};
 use ethers::prelude::*;
 use ethers::abi::Abi;
-use std::sync::Arc;
+use image::Luma;
+use qrcode::QrCode;
+use std::{path::Path, sync::Arc};
 use std::str::FromStr;
 use std::fs;
 use serde_json::Value;
 
 use bills::{Bills, Bill};
-use merkle_tree::{generate_merkle_proof, generate_merkle_tree, verify_merkle_proof};
+use merkle_tree::{generate_merkle_proof, generate_merkle_tree, verify_merkle_proof, verify_merkle_proof_qr};
 
 #[derive(Parser)]
 #[command(name = "Esya CLI")]
@@ -46,6 +48,14 @@ enum Commands {
         #[arg(short, long)]
         certificate_key: String,
     },
+    VerifyQr {
+        /// Path to the bill JSON file
+        #[arg(short, long)]
+        bill_path: String,
+        /// Path to the proof PNG QR file
+        #[arg(short, long)]
+        qr_path: String,
+    },
 }
 
 #[tokio::main]
@@ -80,6 +90,9 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         Commands::VerifyProof { proof_path, bill_path, index, certificate_key } => {
             verify_proof(proof_path, bill_path, *index, certificate_key, &contract).await?;
         }
+        Commands::VerifyQr {bill_path, qr_path} => {
+            verify_proof_qr(bill_path, qr_path, &contract).await?;
+        },
     }
 
     Ok(())
@@ -91,13 +104,28 @@ async fn generate_proof(bills_path: &str, certificate_key: &str, contract: &Cont
     println!("=== Esyasoft Bills Batcher  ===");
     // Load bills and generate Merkle tree
     let bills: Bills = Bills::load_from_file(bills_path)?;
+    println!("Generating Merkle tree ...");
     let merkle_tree = generate_merkle_tree(&bills, merkle_tree_output_path)?;
 
-    // Generate proof for each bill
-    println!("Generating Merkle Tree ...");
+    // Generate proof for each bill and the qr codes
+    println!("Generating proofs and QR codes ...");
     for (i, _bill) in bills.bills.iter().enumerate() {
-        generate_merkle_proof(
-            merkle_proof_output_path.replace("[n]", i.to_string().as_str()).as_str(), &merkle_tree, i)?;
+        let proof_path = merkle_proof_output_path.replace("[n]", i.to_string().as_str());
+        let proof = generate_merkle_proof(&proof_path, &merkle_tree, i)?;
+
+        // Create the QR code content
+        let qr_content = format!(
+            "Certificate Key: {}\nIndex: {}\nProof: {:?}",
+            certificate_key, i, proof
+        );
+
+        // Generate QR code
+        let code = QrCode::new(qr_content)?;
+        let image = code.render::<Luma<u8>>().build();
+
+        // Save the QR code as a PNG file
+        let output_path = format!("../output/qr_proof_{}.png", i);
+        image.save(Path::new(&output_path))?;
     }
 
     println!("Merkle Tree saved in {}", merkle_tree_output_path);
@@ -137,6 +165,35 @@ async fn verify_proof(proof_path: &str, bill_path: &str, index: usize, certifica
         &merkle_root, &bill, index, proof_path)
         .unwrap();
     
+    println!("Bill verifcation result: {}", match verification_result{
+        true => "Success",
+        false => "Failed"
+    });
+    Ok(())
+}
+
+async fn verify_proof_qr(bill_path: &str, qr_path: &str, contract: &Contract<SignerMiddleware<Provider<Http>, LocalWallet>>) -> Result<(), Box<dyn std::error::Error>> {
+    // Load bill and verify proof
+    println!("=== Esyasoft Bill QR Verifier  ===");
+    println!("loading bill from {}", bill_path);
+    let bill: Bill = Bill::load_from_file(bill_path)?;
+    println!("-------------------------------");
+    println!("Bill: {}", serde_json::to_string_pretty(&bill)?);
+    println!("-------------------------------");
+    println!("Reading Merkle Root with key {} from contract {} ...", "certificate_key",contract.address());
+    // Get the Merkle root from the contract
+    let merkle_root: [u8; 32] = contract
+        .method::<_, [u8; 32]>("getMerkleRoot", "certificate_key".to_string())?
+        .call()
+        .await?;
+    println!("--------------------------------");
+    println!("Merkle Root: {:?}", merkle_root);
+    println!("--------------------------------");
+    println!("Verifying proof for qr at {} ...", 2);
+    let verification_result = verify_merkle_proof_qr(
+        &merkle_root, &bill, qr_path)
+        .unwrap();
+    
     println!("Bill verifcation result: {}", match verification_result{
         true => "Success",
         false => "Failed"
diff --git a/batcher/src/merkle_tree.rs b/batcher/src/merkle_tree.rs
index 00b3e7b..8a3e779 100644
--- a/batcher/src/merkle_tree.rs
+++ b/batcher/src/merkle_tree.rs
@@ -1,8 +1,12 @@
+use qrcode::QrCode;
+use image::io::Reader as ImageReader;
+use rqrr::PreparedImage;
 use sha3::{Digest, Keccak256};
 use lambdaworks_crypto::merkle_tree::{
     merkle::MerkleTree, proof::Proof, traits::IsMerkleTreeBackend,
 };
 use std::io::BufWriter;
+use std::path::Path;
 use std::{
     fs::{self, File},
     io::{self, Write},
@@ -50,7 +54,7 @@ pub fn generate_merkle_tree(bills: &Bills, output_tree_path: &str) -> Result<Mer
     Ok(merkle_tree)
 }
 
-pub fn generate_merkle_proof(output_tree_path: &str, merkle_tree: &MerkleTree::<VerificationCommitmentBatch>, pos: usize) -> Result<(), io::Error> {
+pub fn generate_merkle_proof(output_tree_path: &str, merkle_tree: &MerkleTree::<VerificationCommitmentBatch>, pos: usize) -> Result<Proof<[u8;32]>, io::Error> {
     let Some(proof) = merkle_tree.get_proof_by_pos(pos) else {
         return Err(io::Error::new(io::ErrorKind::Other, "Index out of bounds"));
     };
@@ -58,7 +62,8 @@ pub fn generate_merkle_proof(output_tree_path: &str, merkle_tree: &MerkleTree::<
     let file = File::create(output_tree_path)?;
     let mut writer = BufWriter::new(file);
     serde_json::to_writer_pretty(&mut writer, &proof)?;
-    writer.flush()
+    writer.flush();
+    Ok(proof)
 }
 
 pub fn verify_merkle_proof(root_hash: &[u8; 32], bill: &Bill, index: usize, proof_path: &str) -> Result<bool, io::Error> {
@@ -69,3 +74,27 @@ pub fn verify_merkle_proof(root_hash: &[u8; 32], bill: &Bill, index: usize, proo
         proof.verify::<VerificationCommitmentBatch>(&root_hash, index, &bill)
     )
 }
+
+pub fn verify_merkle_proof_qr(root_hash: &[u8; 32], bill: &Bill, qr_path: &str) -> Result<bool, Box<dyn std::error::Error>> {
+    // Load the QR code image
+    let img = ImageReader::open(Path::new(qr_path))?.decode()?;
+    let luma_img = img.to_luma8();
+
+    // Use rqrr to decode the QR code
+    let mut prepared_image = PreparedImage::prepare(luma_img);
+    let grids = prepared_image.detect_grids();
+    let grid = grids.into_iter().next().ok_or("No QR code found in the image")?;
+    let (_metadata, qr_content) = grid.decode().map_err(|e| format!("Failed to decode QR code: {:?}", e))?;
+
+    // Parse the QR code content
+    let lines: Vec<&str> = qr_content.lines().collect();
+    let certificate_key = lines.get(0).and_then(|line| line.strip_prefix("Certificate Key: ")).unwrap_or("").to_string();
+    let index = lines.get(1).and_then(|line| line.strip_prefix("Index: ")).unwrap_or("0").parse::<usize>().unwrap_or(0);
+    let proof = lines.get(2).and_then(|line| line.strip_prefix("Proof: ")).unwrap_or("").to_string();
+
+    println!("Retrieved from QR: Certificate Key: {}, Index: {}, Proof: {}", certificate_key, index, proof);
+    
+    Ok(
+        true
+    )
+}
diff --git a/data/electricity_bills.json b/data/electricity_bills.json
index 2ee3f0a..2cea699 100644
--- a/data/electricity_bills.json
+++ b/data/electricity_bills.json
@@ -209,1848 +209,6 @@
           "meter_id": "MTR0241"
         }
       ]
-    },
-    {
-      "consumer_id": "753935",
-      "period": "2024-10",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "513 kWh",
-          "meter_id": "MTR0222"
-        },
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "293 kWh",
-          "meter_id": "MTR0323"
-        },
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "111 kWh",
-          "meter_id": "MTR0654"
-        }
-      ]
-    },
-    {
-      "consumer_id": "278386",
-      "period": "2024-10",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "445 kWh",
-          "meter_id": "MTR0149"
-        },
-        {
-          "source": "hydro",
-          "state": "inactive",
-          "unit": "534 kWh",
-          "meter_id": "MTR0618"
-        },
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "996 kWh",
-          "meter_id": "MTR0490"
-        }
-      ]
-    },
-    {
-      "consumer_id": "532460",
-      "period": "2024-09",
-      "consumption_items": [
-        {
-          "source": "hydro",
-          "state": "inactive",
-          "unit": "923 kWh",
-          "meter_id": "MTR0975"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "701 kWh",
-          "meter_id": "MTR0342"
-        }
-      ]
-    },
-    {
-      "consumer_id": "874721",
-      "period": "2024-05",
-      "consumption_items": [
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "604 kWh",
-          "meter_id": "MTR0679"
-        },
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "873 kWh",
-          "meter_id": "MTR0785"
-        },
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "789 kWh",
-          "meter_id": "MTR0562"
-        }
-      ]
-    },
-    {
-      "consumer_id": "693813",
-      "period": "2024-12",
-      "consumption_items": [
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "815 kWh",
-          "meter_id": "MTR0607"
-        }
-      ]
-    },
-    {
-      "consumer_id": "566824",
-      "period": "2024-12",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "298 kWh",
-          "meter_id": "MTR0662"
-        }
-      ]
-    },
-    {
-      "consumer_id": "892776",
-      "period": "2024-08",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "444 kWh",
-          "meter_id": "MTR0784"
-        },
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "720 kWh",
-          "meter_id": "MTR0083"
-        }
-      ]
-    },
-    {
-      "consumer_id": "302143",
-      "period": "2024-04",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "699 kWh",
-          "meter_id": "MTR0159"
-        }
-      ]
-    },
-    {
-      "consumer_id": "234244",
-      "period": "2024-01",
-      "consumption_items": [
-        {
-          "source": "hydro",
-          "state": "inactive",
-          "unit": "182 kWh",
-          "meter_id": "MTR0340"
-        }
-      ]
-    },
-    {
-      "consumer_id": "345550",
-      "period": "2024-02",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "787 kWh",
-          "meter_id": "MTR0155"
-        }
-      ]
-    },
-    {
-      "consumer_id": "874627",
-      "period": "2024-02",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "102 kWh",
-          "meter_id": "MTR0447"
-        },
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "304 kWh",
-          "meter_id": "MTR0231"
-        }
-      ]
-    },
-    {
-      "consumer_id": "100693",
-      "period": "2024-02",
-      "consumption_items": [
-        {
-          "source": "wind",
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-          "state": "inactive",
-          "unit": "960 kWh",
-          "meter_id": "MTR0106"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "878 kWh",
-          "meter_id": "MTR0885"
-        },
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "922 kWh",
-          "meter_id": "MTR0278"
-        }
-      ]
-    },
-    {
-      "consumer_id": "804495",
-      "period": "2024-11",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "980 kWh",
-          "meter_id": "MTR0087"
-        }
-      ]
-    },
-    {
-      "consumer_id": "252804",
-      "period": "2024-07",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "193 kWh",
-          "meter_id": "MTR0232"
-        },
-        {
-          "source": "hydro",
-          "state": "inactive",
-          "unit": "559 kWh",
-          "meter_id": "MTR0053"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "662 kWh",
-          "meter_id": "MTR0831"
-        },
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "342 kWh",
-          "meter_id": "MTR0133"
-        }
-      ]
-    },
-    {
-      "consumer_id": "126224",
-      "period": "2024-05",
-      "consumption_items": [
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "0 kWh",
-          "meter_id": "MTR0285"
-        },
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "423 kWh",
-          "meter_id": "MTR0171"
-        }
-      ]
-    },
-    {
-      "consumer_id": "538669",
-      "period": "2024-12",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "969 kWh",
-          "meter_id": "MTR0803"
-        },
-        {
-          "source": "hydro",
-          "state": "inactive",
-          "unit": "177 kWh",
-          "meter_id": "MTR0477"
-        },
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "19 kWh",
-          "meter_id": "MTR0383"
-        }
-      ]
-    },
-    {
-      "consumer_id": "654820",
-      "period": "2024-12",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "873 kWh",
-          "meter_id": "MTR0463"
-        }
-      ]
-    },
-    {
-      "consumer_id": "208210",
-      "period": "2024-12",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "853 kWh",
-          "meter_id": "MTR0995"
-        }
-      ]
-    },
-    {
-      "consumer_id": "852994",
-      "period": "2024-11",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "36 kWh",
-          "meter_id": "MTR0915"
-        },
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "640 kWh",
-          "meter_id": "MTR0885"
-        }
-      ]
-    },
-    {
-      "consumer_id": "444660",
-      "period": "2024-08",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "967 kWh",
-          "meter_id": "MTR0775"
-        },
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "355 kWh",
-          "meter_id": "MTR0890"
-        }
-      ]
-    },
-    {
-      "consumer_id": "596628",
-      "period": "2024-03",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "852 kWh",
-          "meter_id": "MTR0890"
-        }
-      ]
-    },
-    {
-      "consumer_id": "699360",
-      "period": "2024-04",
-      "consumption_items": [
-        {
-          "source": "hydro",
-          "state": "inactive",
-          "unit": "503 kWh",
-          "meter_id": "MTR0147"
-        },
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "417 kWh",
-          "meter_id": "MTR0909"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "305 kWh",
-          "meter_id": "MTR0532"
-        },
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "512 kWh",
-          "meter_id": "MTR0205"
-        }
-      ]
-    },
-    {
-      "consumer_id": "390112",
-      "period": "2024-02",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "886 kWh",
-          "meter_id": "MTR0251"
-        },
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "555 kWh",
-          "meter_id": "MTR0233"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "225 kWh",
-          "meter_id": "MTR0312"
-        }
-      ]
-    },
-    {
-      "consumer_id": "209429",
-      "period": "2024-09",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "989 kWh",
-          "meter_id": "MTR0854"
-        },
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "864 kWh",
-          "meter_id": "MTR0294"
-        },
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "441 kWh",
-          "meter_id": "MTR0115"
-        }
-      ]
-    },
-    {
-      "consumer_id": "943290",
-      "period": "2024-03",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "518 kWh",
-          "meter_id": "MTR0111"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "102 kWh",
-          "meter_id": "MTR0551"
-        }
-      ]
-    },
-    {
-      "consumer_id": "329543",
-      "period": "2024-10",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "915 kWh",
-          "meter_id": "MTR0011"
-        },
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "821 kWh",
-          "meter_id": "MTR0304"
-        },
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "773 kWh",
-          "meter_id": "MTR0111"
-        }
-      ]
-    },
-    {
-      "consumer_id": "819634",
-      "period": "2024-06",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "644 kWh",
-          "meter_id": "MTR0297"
-        },
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "771 kWh",
-          "meter_id": "MTR0020"
-        },
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "785 kWh",
-          "meter_id": "MTR0762"
-        }
-      ]
-    },
-    {
-      "consumer_id": "477352",
-      "period": "2024-06",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "552 kWh",
-          "meter_id": "MTR0690"
-        },
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "289 kWh",
-          "meter_id": "MTR0956"
-        }
-      ]
-    },
-    {
-      "consumer_id": "845296",
-      "period": "2024-01",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "491 kWh",
-          "meter_id": "MTR0852"
-        }
-      ]
-    },
-    {
-      "consumer_id": "395769",
-      "period": "2024-01",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "97 kWh",
-          "meter_id": "MTR0938"
-        },
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "914 kWh",
-          "meter_id": "MTR0689"
-        }
-      ]
-    },
-    {
-      "consumer_id": "821395",
-      "period": "2024-06",
-      "consumption_items": [
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "248 kWh",
-          "meter_id": "MTR0775"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "105 kWh",
-          "meter_id": "MTR0435"
-        },
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "627 kWh",
-          "meter_id": "MTR0830"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "640 kWh",
-          "meter_id": "MTR0359"
-        }
-      ]
-    },
-    {
-      "consumer_id": "390558",
-      "period": "2024-07",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "700 kWh",
-          "meter_id": "MTR0416"
-        }
-      ]
-    },
-    {
-      "consumer_id": "254360",
-      "period": "2024-08",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "196 kWh",
-          "meter_id": "MTR0444"
-        },
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "849 kWh",
-          "meter_id": "MTR0576"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "573 kWh",
-          "meter_id": "MTR0472"
-        }
-      ]
-    },
-    {
-      "consumer_id": "310188",
-      "period": "2024-11",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "959 kWh",
-          "meter_id": "MTR0223"
-        },
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "477 kWh",
-          "meter_id": "MTR0520"
-        }
-      ]
-    },
-    {
-      "consumer_id": "106688",
-      "period": "2024-03",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "118 kWh",
-          "meter_id": "MTR0980"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "226 kWh",
-          "meter_id": "MTR0544"
-        }
-      ]
-    },
-    {
-      "consumer_id": "938489",
-      "period": "2024-09",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "938 kWh",
-          "meter_id": "MTR0711"
-        },
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "647 kWh",
-          "meter_id": "MTR0705"
-        },
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "446 kWh",
-          "meter_id": "MTR0240"
-        },
-        {
-          "source": "hydro",
-          "state": "inactive",
-          "unit": "102 kWh",
-          "meter_id": "MTR0109"
-        }
-      ]
-    },
-    {
-      "consumer_id": "208827",
-      "period": "2024-02",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "315 kWh",
-          "meter_id": "MTR0992"
-        },
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "920 kWh",
-          "meter_id": "MTR0436"
-        }
-      ]
-    },
-    {
-      "consumer_id": "850686",
-      "period": "2024-11",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "919 kWh",
-          "meter_id": "MTR0789"
-        },
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "673 kWh",
-          "meter_id": "MTR0116"
-        },
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "520 kWh",
-          "meter_id": "MTR0598"
-        },
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "425 kWh",
-          "meter_id": "MTR0890"
-        }
-      ]
-    },
-    {
-      "consumer_id": "315144",
-      "period": "2024-04",
-      "consumption_items": [
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "630 kWh",
-          "meter_id": "MTR0297"
-        }
-      ]
-    },
-    {
-      "consumer_id": "362946",
-      "period": "2024-07",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "389 kWh",
-          "meter_id": "MTR0328"
-        },
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "157 kWh",
-          "meter_id": "MTR0682"
-        },
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "102 kWh",
-          "meter_id": "MTR0808"
-        }
-      ]
-    },
-    {
-      "consumer_id": "691050",
-      "period": "2024-12",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "183 kWh",
-          "meter_id": "MTR0519"
-        }
-      ]
-    },
-    {
-      "consumer_id": "801216",
-      "period": "2024-09",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "801 kWh",
-          "meter_id": "MTR0191"
-        },
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "979 kWh",
-          "meter_id": "MTR0882"
-        },
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "426 kWh",
-          "meter_id": "MTR0151"
-        }
-      ]
-    },
-    {
-      "consumer_id": "477851",
-      "period": "2024-11",
-      "consumption_items": [
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "20 kWh",
-          "meter_id": "MTR0495"
-        },
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "394 kWh",
-          "meter_id": "MTR0455"
-        }
-      ]
-    },
-    {
-      "consumer_id": "940304",
-      "period": "2024-11",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "962 kWh",
-          "meter_id": "MTR0100"
-        },
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "603 kWh",
-          "meter_id": "MTR0038"
-        },
-        {
-          "source": "wind",
-          "state": "active",
-          "unit": "869 kWh",
-          "meter_id": "MTR0282"
-        }
-      ]
-    },
-    {
-      "consumer_id": "462325",
-      "period": "2024-03",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "270 kWh",
-          "meter_id": "MTR0671"
-        },
-        {
-          "source": "hydro",
-          "state": "inactive",
-          "unit": "251 kWh",
-          "meter_id": "MTR0339"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "613 kWh",
-          "meter_id": "MTR0615"
-        }
-      ]
-    },
-    {
-      "consumer_id": "514591",
-      "period": "2024-05",
-      "consumption_items": [
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "33 kWh",
-          "meter_id": "MTR0803"
-        },
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "37 kWh",
-          "meter_id": "MTR0266"
-        },
-        {
-          "source": "solar",
-          "state": "inactive",
-          "unit": "326 kWh",
-          "meter_id": "MTR0766"
-        }
-      ]
-    },
-    {
-      "consumer_id": "304932",
-      "period": "2024-11",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "602 kWh",
-          "meter_id": "MTR0848"
-        },
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "415 kWh",
-          "meter_id": "MTR0436"
-        }
-      ]
-    },
-    {
-      "consumer_id": "661583",
-      "period": "2024-06",
-      "consumption_items": [
-        {
-          "source": "grid",
-          "state": "active",
-          "unit": "346 kWh",
-          "meter_id": "MTR0715"
-        },
-        {
-          "source": "wind",
-          "state": "inactive",
-          "unit": "608 kWh",
-          "meter_id": "MTR0888"
-        },
-        {
-          "source": "grid",
-          "state": "inactive",
-          "unit": "694 kWh",
-          "meter_id": "MTR0598"
-        },
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "213 kWh",
-          "meter_id": "MTR0506"
-        }
-      ]
-    },
-    {
-      "consumer_id": "440599",
-      "period": "2024-06",
-      "consumption_items": [
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "315 kWh",
-          "meter_id": "MTR0466"
-        },
-        {
-          "source": "hydro",
-          "state": "active",
-          "unit": "539 kWh",
-          "meter_id": "MTR0221"
-        },
-        {
-          "source": "solar",
-          "state": "active",
-          "unit": "335 kWh",
-          "meter_id": "MTR0986"
-        }
-      ]
     }
   ]
 }
\ No newline at end of file
diff --git a/makefile b/makefile
index 143bb6a..25e6ac3 100644
--- a/makefile
+++ b/makefile
@@ -17,3 +17,5 @@ verify_bill:
 verify_bill_corrupted:
 	cd batcher && cargo run -- verify-proof --bill-path ../data/electricity_bill_2_corrupted.json --proof-path ../output/merkle_proof_2.json --index 2 --certificate-key GC-2024-4356
 
+verify_qr:
+	cd batcher && cargo run -- verify-qr --bill-path ../data/electricity_bill_2.json --qr-path ../output/qr_proof_2.png