diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3f012d5..9398142 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -60,11 +60,11 @@ jobs:
     timeout-minutes: 30
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@nightly
         with:
-          targets: riscv32imac-unknown-none-elf
+          components: rust-src
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
-      - name: Build stateless for riscv32imac
+      - name: Build stateless for rv64im (with atomics enabled)
         run: ./scripts/check_no_std.sh
diff --git a/Cargo.lock b/Cargo.lock
index ffafe41..2a7e4a8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -133,9 +133,9 @@ dependencies = [
 
 [[package]]
 name = "alloy-eip7928"
-version = "0.3.5"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec6ae911a2fc304a7cb80a79fb7bed6d1474aed4e7c203df1f8ff538f64fc78d"
+checksum = "6b827a6d7784fe3eb3489d40699407a4cdcce74271421a01bdffe60cf573bb16"
 dependencies = [
  "alloy-primitives",
  "alloy-rlp",
@@ -143,6 +143,7 @@ dependencies = [
  "borsh",
  "once_cell",
  "serde",
+ "thiserror",
 ]
 
 [[package]]
@@ -1037,7 +1038,7 @@ version = "0.72.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "993776b509cfb49c750f11b8f07a46fa23e0a1386ffc01fb1e7d343efc387895"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
  "cexpr",
  "clang-sys",
  "itertools 0.13.0",
@@ -1080,12 +1081,6 @@ dependencies = [
  "hex-conservative",
 ]
 
-[[package]]
-name = "bitflags"
-version = "1.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
-
 [[package]]
 name = "bitflags"
 version = "2.11.1"
@@ -1162,6 +1157,15 @@ dependencies = [
  "debug-helper",
 ]
 
+[[package]]
+name = "bs58"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf88ba1141d185c399bee5288d850d63b8369520c1eafc32a0430b5b6c287bf4"
+dependencies = [
+ "tinyvec",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.20.2"
@@ -1246,9 +1250,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.61"
+version = "1.2.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d16d90359e986641506914ba71350897565610e87ce0ad9e6f28569db3dd5c6d"
+checksum = "a1dce859f0832a7d088c4f1119888ab94ef4b5d6795d1ce05afb7fe159d79f98"
 dependencies = [
  "find-msvc-tools",
  "jobserver",
@@ -1350,9 +1354,9 @@ checksum = "1d07550c9036bf2ae0c684c4297d503f838287c83c53686d05370d0e139ae570"
 
 [[package]]
 name = "const-hex"
-version = "1.18.1"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "531185e432bb31db1ecda541e9e7ab21468d4d844ad7505e0546a49b4945d49b"
+checksum = "20d9a563d167a9cce0f94153382b33cb6eded6dfabff03c69ad65a28ea1514e0"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -2110,9 +2114,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.4.13"
+version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f44da3a8150a6703ed5d34e164b875fd14c2cdab9af1252a9a1020bde2bdc54"
+checksum = "171fefbc92fe4a4de27e0698d6a5b392d6a0e333506bc49133760b3bcf948733"
 dependencies = [
  "atomic-waker",
  "bytes",
@@ -2168,9 +2172,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.17.0"
+version = "0.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f467dd6dccf739c208452f8014c75c18bb8301b050ad1cfb27153803edb0f51"
+checksum = "ed5909b6e89a2db4456e54cd5f673791d7eca6732202bbf2a9cc504fe2f9b84a"
 
 [[package]]
 name = "heck"
@@ -2504,7 +2508,7 @@ checksum = "d466e9454f08e4a911e14806c24e16fba1b4c121d1ea474396f396069cf949d9"
 dependencies = [
  "arbitrary",
  "equivalent",
- "hashbrown 0.17.0",
+ "hashbrown 0.17.1",
  "serde",
  "serde_core",
 ]
@@ -2515,7 +2519,7 @@ version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bd5b3eaf1a28b758ac0faa5a4254e8ab2705605496f1b1f3fbbc3988ad73d199"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
  "inotify-sys",
  "libc",
 ]
@@ -2535,16 +2539,6 @@ version = "2.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d98f6fed1fde3f8c21bc40a1abb88dd75e67924f9cffc3ef95607bad8017f8e2"
 
-[[package]]
-name = "iri-string"
-version = "0.7.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25e659a4bb38e810ebc252e53b5814ff908a8c58c2a9ce2fae1bbec24cbf4e20"
-dependencies = [
- "memchr",
- "serde",
-]
-
 [[package]]
 name = "is_terminal_polyfill"
 version = "1.70.2"
@@ -2596,9 +2590,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.97"
+version = "0.3.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1840c94c045fbcf8ba2812c95db44499f7c64910a912551aaaa541decebcacf"
+checksum = "67df7112613f8bfd9150013a0314e196f4800d3201ae742489d999db2f979f08"
 dependencies = [
  "cfg-if",
  "futures-util",
@@ -2631,9 +2625,9 @@ dependencies = [
 
 [[package]]
 name = "keccak-asm"
-version = "0.1.6"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa468878266ad91431012b3e5ef1bf9b170eab22883503a318d46857afa4579a"
+checksum = "1766b89733097006f3a1388a02849865d6bc98c89273cb622e29fdd209922183"
 dependencies = [
  "digest 0.10.7",
  "sha3-asm",
@@ -2666,11 +2660,11 @@ dependencies = [
 
 [[package]]
 name = "kqueue-sys"
-version = "1.0.4"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed9625ffda8729b85e45cf04090035ac368927b8cebc34898e7c120f52e4838b"
+checksum = "285efcf12ef41bec907b3000d5ffaeb54191d4d9d83c0d6157e6cbc2db255e64"
 dependencies = [
- "bitflags 1.3.2",
+ "bitflags",
  "libc",
 ]
 
@@ -2779,9 +2773,9 @@ dependencies = [
 
 [[package]]
 name = "lz4_flex"
-version = "0.12.1"
+version = "0.12.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98c23545df7ecf1b16c303910a69b079e8e251d60f7dd2cc9b4177f2afaf1746"
+checksum = "90071f8077f8e40adfc4b7fe9cd495ce316263f19e75c2211eeff3fdf475a3d9"
 
 [[package]]
 name = "mach2"
@@ -2829,9 +2823,9 @@ dependencies = [
 
 [[package]]
 name = "metrics"
-version = "0.24.4"
+version = "0.24.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7cd3e9eb685089c784f5769b1197d348c7274bc20d4e1349650f63b91b6d0af"
+checksum = "89550ee9f79e88fef3119de263694973a8adb26c21d75322164fb8c493039fe2"
 dependencies = [
  "portable-atomic",
  "rapidhash",
@@ -2923,7 +2917,7 @@ version = "8.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4d3d07927151ff8575b7087f245456e549fea62edf0ec4e565a5ee50c8402bc3"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
  "fsevent-sys",
  "inotify",
  "kqueue",
@@ -2941,7 +2935,7 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42b8cfee0e339a0337359f3c88165702ac6e600dc01c0cc9579a92d62b08477a"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
 ]
 
 [[package]]
@@ -3095,7 +3089,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a180dd8642fa45cdb7dd721cd4c11b1cadd4929ce112ebd8b9f5803cc79d536"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
 ]
 
 [[package]]
@@ -3351,18 +3345,18 @@ dependencies = [
 
 [[package]]
 name = "pin-project"
-version = "1.1.11"
+version = "1.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1749c7ed4bcaf4c3d0a3efc28538844fb29bcdd7d2b67b2be7e20ba861ff517"
+checksum = "2466b2336ed02bcdca6b294417127b90ec92038d1d5c4fbeac971a922e0e0924"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "1.1.11"
+version = "1.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9b20ed30f105399776b9c883e68e536ef602a16ae6f596d2c473591d6ad64c6"
+checksum = "c96395f0a926bc13b1c17622aaddda1ecb55d49c8f1bf9777e4d877800a43f8b"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3508,7 +3502,7 @@ checksum = "4b45fcc2344c680f5025fe57779faef368840d0bd1f42f216291f0dc4ace4744"
 dependencies = [
  "bit-set",
  "bit-vec",
- "bitflags 2.11.1",
+ "bitflags",
  "num-traits",
  "rand 0.9.4",
  "rand_chacha 0.9.0",
@@ -3682,9 +3676,8 @@ checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
 [[package]]
 name = "radium"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc33ff2d4973d518d823d61aa239014831e521c75da58e3df4840d3f47749d09"
+version = "0.7.1"
+source = "git+https://github.com/ferrilab/radium?rev=723bed5a#723bed5abd75994ee4b7221b8b12c9f4e77ce408"
 
 [[package]]
 name = "rancor"
@@ -3781,7 +3774,7 @@ version = "11.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "498cd0dc59d73224351ee52a95fee0f1a617a2eae0e7d9d720cc622c73a54186"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
 ]
 
 [[package]]
@@ -3810,7 +3803,7 @@ version = "0.5.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed2bf2547551a7053d6fdfafda3f938979645c44812fbfcda098faae3f1a362d"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
 ]
 
 [[package]]
@@ -4325,7 +4318,7 @@ name = "reth-libmdbx"
 version = "2.1.0"
 source = "git+https://github.com/paradigmxyz/reth?tag=v2.1.0#d58c6e3d0723a28f655e89da83c3738e47dcc364"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
  "byteorder",
  "crossbeam-queue",
  "dashmap",
@@ -4976,7 +4969,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c32490ed687dba31c3c882beb8c20408bdd30ef96690d8f145b0ee9a87040bfe"
 dependencies = [
  "alloy-eip7928",
- "bitflags 2.11.1",
+ "bitflags",
  "revm-bytecode",
  "revm-primitives",
  "serde",
@@ -5023,7 +5016,7 @@ checksum = "73389e0c99e664f919275ab5b5b0471391fe9a8de61e1dff9b1eaf56a90f16e3"
 dependencies = [
  "bytecheck",
  "bytes",
- "hashbrown 0.17.0",
+ "hashbrown 0.17.1",
  "indexmap 2.14.0",
  "munge",
  "ptr_meta",
@@ -5155,7 +5148,7 @@ version = "1.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6fe4565b9518b83ef4f91bb47ce29620ca828bd32cb7e408f0062e9930ba190"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
  "errno",
  "libc",
  "linux-raw-sys",
@@ -5343,7 +5336,7 @@ version = "3.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b7f4bc775c73d9a02cde8bf7b2ec4c9d12743edf609006c7facc23998404cd1d"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
  "core-foundation",
  "core-foundation-sys",
  "libc",
@@ -5442,11 +5435,12 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "3.18.0"
+version = "3.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd5414fad8e6907dbdd5bc441a50ae8d6e26151a03b1de04d89a5576de61d01f"
+checksum = "e72c1c2cb7b223fafb600a619537a871c2818583d619401b785e7c0b746ccde2"
 dependencies = [
  "base64",
+ "bs58",
  "chrono",
  "hex",
  "indexmap 1.9.3",
@@ -5461,9 +5455,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "3.18.0"
+version = "3.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3db8978e608f1fe7357e211969fd9abdcae80bac1ba7a3369bb7eb6b404eb65"
+checksum = "b90c488738ecb4fb0262f41f43bc40efc5868d9fb744319ddf5f5317f417bfac"
 dependencies = [
  "darling",
  "proc-macro2",
@@ -5504,9 +5498,9 @@ dependencies = [
 
 [[package]]
 name = "sha3-asm"
-version = "0.1.6"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59cbb88c189d6352cc8ae96a39d19c7ecad8f7330b29461187f2587fdc2988d5"
+checksum = "9f3f15d4e239ebe08413eed880e0f9b5af4b40ee0472543320efa91d488e96a7"
 dependencies = [
  "cc",
  "cfg-if",
@@ -5545,9 +5539,9 @@ checksum = "e3a9fe34e3e7a50316060351f37187a3f546bce95496156754b601a5fa71b76e"
 
 [[package]]
 name = "siphasher"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2aa850e253778c88a04c3d7323b043aeda9d3e30d5971937c1855769763678e"
+checksum = "8ee5873ec9cce0195efcb7a4e9507a04cd49aec9c83d0389df45b1ef7ba2e649"
 
 [[package]]
 name = "slab"
@@ -5784,7 +5778,7 @@ version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2210811179577da3d54eb69ab0b50490ee40491a25d95b8c6011ba40771cb721"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
  "cfg-if",
  "libc",
  "log",
@@ -5868,9 +5862,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.52.1"
+version = "1.52.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b67dee974fe86fd92cc45b7a95fdd2f99a36a6d7b0d431a231178d3d670bbcc6"
+checksum = "8fc7f01b389ac15039e4dc9531aa973a135d7a4135281b12d7c1bc79fd57fffe"
 dependencies = [
  "bytes",
  "libc",
@@ -5959,9 +5953,9 @@ dependencies = [
 
 [[package]]
 name = "tonic"
-version = "0.14.5"
+version = "0.14.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fec7c61a0695dc1887c1b53952990f3ad2e3a31453e1f49f10e75424943a93ec"
+checksum = "ac2a5518c70fa84342385732db33fb3f44bc4cc748936eb5833d2df34d6445ef"
 dependencies = [
  "async-trait",
  "base64",
@@ -5985,9 +5979,9 @@ dependencies = [
 
 [[package]]
 name = "tonic-prost"
-version = "0.14.5"
+version = "0.14.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a55376a0bbaa4975a3f10d009ad763d8f4108f067c7c2e74f3001fb49778d309"
+checksum = "50849f68853be452acf590cde0b146665b8d507b3b8af17261df47e02c209ea0"
 dependencies = [
  "bytes",
  "prost",
@@ -6015,20 +6009,20 @@ dependencies = [
 
 [[package]]
 name = "tower-http"
-version = "0.6.8"
+version = "0.6.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4e6559d53cc268e5031cd8429d05415bc4cb4aefc4aa5d6cc35fbf5b924a1f8"
+checksum = "68d6fdd9f81c2819c9a8b0e0cd91660e7746a8e6ea2ba7c6b2b057985f6bcb51"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
  "bytes",
  "futures-util",
  "http",
  "http-body",
- "iri-string",
  "pin-project-lite",
  "tower",
  "tower-layer",
  "tower-service",
+ "url",
 ]
 
 [[package]]
@@ -6406,9 +6400,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.120"
+version = "0.2.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df52b6d9b87e0c74c9edfa1eb2d9bf85e5d63515474513aa50fa181b3c4f5db1"
+checksum = "49ace1d07c165b0864824eee619580c4689389afa9dc9ed3a4c75040d82e6790"
 dependencies = [
  "cfg-if",
  "once_cell",
@@ -6419,9 +6413,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.70"
+version = "0.4.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af934872acec734c2d80e6617bbb5ff4f12b052dd8e6332b0817bce889516084"
+checksum = "96492d0d3ffba25305a7dc88720d250b1401d7edca02cc3bcd50633b424673b8"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -6429,9 +6423,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.120"
+version = "0.2.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78b1041f495fb322e64aca85f5756b2172e35cd459376e67f2a6c9dffcedb103"
+checksum = "8e68e6f4afd367a562002c05637acb8578ff2dea1943df76afb9e83d177c8578"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -6439,9 +6433,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.120"
+version = "0.2.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dcd0ff20416988a18ac686d4d4d0f6aae9ebf08a389ff5d29012b05af2a1b41"
+checksum = "d95a9ec35c64b2a7cb35d3fead40c4238d0940c86d107136999567a4703259f2"
 dependencies = [
  "bumpalo",
  "proc-macro2",
@@ -6452,9 +6446,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.120"
+version = "0.2.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49757b3c82ebf16c57d69365a142940b384176c24df52a087fb748e2085359ea"
+checksum = "c4e0100b01e9f0d03189a92b96772a1fb998639d981193d7dbab487302513441"
 dependencies = [
  "unicode-ident",
 ]
@@ -6487,7 +6481,7 @@ version = "0.244.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "47b807c72e1bac69382b3a6fb3dbe8ea4c0ed87ff5629b8685ae6b9a611028fe"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags",
  "hashbrown 0.15.5",
  "indexmap 2.14.0",
  "semver 1.0.28",
@@ -6495,9 +6489,9 @@ dependencies = [
 
 [[package]]
 name = "web-sys"
-version = "0.3.97"
+version = "0.3.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2eadbac71025cd7b0834f20d1fe8472e8495821b4e9801eb0a60bd1f19827602"
+checksum = "4b572dff8bcf38bad0fa19729c89bb5748b2b9b1d8be70cf90df697e3a8f32aa"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -6981,7 +6975,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
 dependencies = [
  "anyhow",
- "bitflags 2.11.1",
+ "bitflags",
  "indexmap 2.14.0",
  "log",
  "serde",
@@ -7071,9 +7065,9 @@ dependencies = [
 
 [[package]]
 name = "zerofrom"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69faa1f2a1ea75661980b013019ed6687ed0e83d069bc1114e2cc74c6c04c4df"
+checksum = "0ec05a11813ea801ff6d75110ad09cd0824ddba17dfe17128ea0d5f68e6c5272"
 dependencies = [
  "zerofrom-derive",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 9cad7d2..219f446 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -95,3 +95,7 @@ serde_with = { version = "3.16", default-features = false, features = [
 ] }
 thiserror = { version = "2.0", default-features = false }
 walkdir = "2.5"
+
+[patch.crates-io]
+# Force every crate (including transitive ones) to use radium 0.7.1
+radium = { git = "https://github.com/ferrilab/radium", rev = "723bed5a" }
diff --git a/README.md b/README.md
index 3dbbdc6..cff12fd 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ let block_access_list = validation.block_access_list;
 
 ## `no_std`
 
-The `stateless` crate is `#![no_std]` compatible and builds for RISC-V targets (`riscv32imac-unknown-none-elf`), making it suitable for use in zkVM environments.
+The `stateless` crate is `#![no_std]` compatible and builds for the 64‑bit RV64IM target (`riscv64im-unknown-none-elf`), making it suitable for use in zkVM environments.
 
 ## Running EF tests
 
diff --git a/scripts/check_no_std.sh b/scripts/check_no_std.sh
index 05400bf..0646792 100755
--- a/scripts/check_no_std.sh
+++ b/scripts/check_no_std.sh
@@ -1,9 +1,9 @@
 #!/usr/bin/env bash
 set -eo pipefail
 
-target=riscv32imac-unknown-none-elf
+target=support/targets/riscv64im-a-target.json
 
-cmd=(cargo +stable build --no-default-features --target "$target" -p stateless)
+cmd=(cargo +nightly build --no-default-features -Zjson-target-spec -Zbuild-std=core,alloc --target "$target" -p stateless)
 
 echo "Running: ${cmd[*]}"
 "${cmd[@]}"
diff --git a/support/targets/riscv64im-a-target.json b/support/targets/riscv64im-a-target.json
new file mode 100644
index 0000000..7df0f4d
--- /dev/null
+++ b/support/targets/riscv64im-a-target.json
@@ -0,0 +1,20 @@
+{
+  "arch": "riscv64",
+  "code-model": "medium",
+  "cpu": "generic-rv64",
+  "data-layout": "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128",
+  "eh-frame-header": false,
+  "features": "+m,+a",
+  "llvm-abiname": "lp64",
+  "llvm-target": "riscv64-unknown-none-elf",
+  "max-atomic-width": 64,
+  "os": "none",
+  "panic-strategy": "abort",
+  "pre-link-args": {
+    "ld": [
+      "-z", "notext"
+    ]
+  },
+  "relocation-model": "static",
+  "target-pointer-width": 64
+}
diff --git a/testing/ef-specs b/testing/ef-specs
new file mode 160000
index 0000000..b1d870f
--- /dev/null
+++ b/testing/ef-specs
@@ -0,0 +1 @@
+Subproject commit b1d870f8f06d9eba3d74179c39660cedb98f1f38