diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 4e32722..846cf01 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -53,6 +53,12 @@ dependencies = [
  "reqwest",
 ]
 
+[[package]]
+name = "arrayvec"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c02d123df017efcdfbd739ef81735b36c5ba83ec3c59c80a9d7ecc718f92e50"
+
 [[package]]
 name = "async-trait"
 version = "0.1.83"
@@ -70,7 +76,10 @@ version = "0.1.0"
 dependencies = [
  "api",
  "async-trait",
+ "bitcoin_hashes 0.19.0",
+ "hex-conservative 1.0.1",
  "jsonwebtoken",
+ "secp256k1",
  "serde",
  "tokio",
 ]
@@ -109,28 +118,44 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
 [[package]]
-name = "bb8"
-version = "0.7.1"
+name = "bitcoin-consensus-encoding"
+version = "1.0.0-rc.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e9f4fa9768efd269499d8fba693260cfc670891cf6de3adc935588447a77cc8"
+checksum = "9cd69023e5db2f3f7241672de6be29408373ba0ff407e7fda71d70d728bec05a"
 dependencies = [
- "async-trait",
- "futures-channel",
- "futures-util",
- "parking_lot 0.11.2",
- "tokio",
+ "bitcoin-internals",
+]
+
+[[package]]
+name = "bitcoin-internals"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a30a22d1f112dde8e16be7b45c63645dc165cef254f835b3e1e9553e485cfa64"
+
+[[package]]
+name = "bitcoin-io"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dee39a0ee5b4095224a0cfc6bf4cc1baf0f9624b96b367e53b66d974e51d953"
+
+[[package]]
+name = "bitcoin_hashes"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26ec84b80c482df901772e931a9a681e26a1b9ee2302edeff23cb30328745c8b"
+dependencies = [
+ "bitcoin-io",
+ "hex-conservative 0.2.2",
 ]
 
 [[package]]
-name = "bb8-postgres"
-version = "0.7.0"
+name = "bitcoin_hashes"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61fdf56d52b2cca401d2380407e5c35d3d25d3560224ecf74d6e4ca13e51239b"
+checksum = "9aaf7add9aa250546d4d7a0ad0755a25327f5205dc2d7eba6b6ec08cd864c79e"
 dependencies = [
- "async-trait",
- "bb8",
- "tokio",
- "tokio-postgres",
+ "bitcoin-consensus-encoding",
+ "bitcoin-internals",
 ]
 
 [[package]]
@@ -374,7 +399,6 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d6401deb83407ab3da39eba7e33987a73c3df0c82b4bb5813ee871c19c41d48"
 dependencies = [
- "futures-channel",
  "futures-core",
  "futures-io",
  "futures-sink",
@@ -463,6 +487,21 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
 
+[[package]]
+name = "hex-conservative"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fda06d18ac606267c40c04e41b9947729bf8b9efe74bd4e82b61a5f26a510b9f"
+dependencies = [
+ "arrayvec",
+]
+
+[[package]]
+name = "hex-conservative"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "366fa3443ac84474447710ec17bb00b05dfbd096137817981e86f992f21a2793"
+
 [[package]]
 name = "hmac"
 version = "0.12.1"
@@ -661,9 +700,9 @@ version = "0.1.0"
 dependencies = [
  "api",
  "async-trait",
- "bb8-postgres",
  "bytes",
  "chrono",
+ "log",
  "native-tls",
  "postgres-native-tls",
  "tokio",
@@ -680,15 +719,6 @@ dependencies = [
  "hashbrown",
 ]
 
-[[package]]
-name = "instant"
-version = "0.1.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0242819d153cba4b4b05a5a8f2a7e9bbf97b6055b2a002b395c96b5ff3c0222"
-dependencies = [
- "cfg-if",
-]
-
 [[package]]
 name = "ipnet"
 version = "2.10.0"
@@ -754,7 +784,7 @@ checksum = "416f7e718bdb06000964960ffa43b4335ad4012ae8b99060261aa4a8088d5ccb"
 dependencies = [
  "bitflags 2.6.0",
  "libc",
- "redox_syscall 0.5.18",
+ "redox_syscall",
 ]
 
 [[package]]
@@ -774,9 +804,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.22"
+version = "0.4.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
+checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"
 
 [[package]]
 name = "md-5"
@@ -940,17 +970,6 @@ dependencies = [
  "vcpkg",
 ]
 
-[[package]]
-name = "parking_lot"
-version = "0.11.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99"
-dependencies = [
- "instant",
- "lock_api",
- "parking_lot_core 0.8.6",
-]
-
 [[package]]
 name = "parking_lot"
 version = "0.12.5"
@@ -958,21 +977,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "93857453250e3077bd71ff98b6a65ea6621a19bb0f559a85248955ac12c45a1a"
 dependencies = [
  "lock_api",
- "parking_lot_core 0.9.12",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.8.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60a2cfe6f0ad2bfc16aefa463b497d5c7a5ecd44a23efa72aa342d90177356dc"
-dependencies = [
- "cfg-if",
- "instant",
- "libc",
- "redox_syscall 0.2.16",
- "smallvec",
- "winapi",
+ "parking_lot_core",
 ]
 
 [[package]]
@@ -983,7 +988,7 @@ checksum = "2621685985a2ebf1c516881c026032ac7deafcda1a2c9b7850dc81e3dfcb64c1"
 dependencies = [
  "cfg-if",
  "libc",
- "redox_syscall 0.5.18",
+ "redox_syscall",
  "smallvec",
  "windows-link",
 ]
@@ -1261,15 +1266,6 @@ dependencies = [
  "getrandom 0.3.4",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.2.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
-dependencies = [
- "bitflags 1.3.2",
-]
-
 [[package]]
 name = "redox_syscall"
 version = "0.5.18"
@@ -1445,6 +1441,26 @@ dependencies = [
  "untrusted",
 ]
 
+[[package]]
+name = "secp256k1"
+version = "0.31.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c3c81b43dc2d8877c216a3fccf76677ee1ebccd429566d3e67447290d0c42b2"
+dependencies = [
+ "bitcoin_hashes 0.14.1",
+ "rand 0.9.2",
+ "secp256k1-sys",
+]
+
+[[package]]
+name = "secp256k1-sys"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcb913707158fadaf0d8702c2db0e857de66eb003ccfdda5924b5f5ac98efb38"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "security-framework"
 version = "2.11.1"
@@ -1717,30 +1733,30 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.44"
+version = "0.3.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91e7d9e3bb61134e77bde20dd4825b97c010155709965fedf0f49bb138e52a9d"
+checksum = "f9e442fc33d7fdb45aa9bfeb312c095964abdf596f7567261062b2a7107aaabd"
 dependencies = [
  "deranged",
  "itoa",
  "num-conv",
  "powerfmt",
- "serde",
+ "serde_core",
  "time-core",
  "time-macros",
 ]
 
 [[package]]
 name = "time-core"
-version = "0.1.6"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40868e7c1d2f0b8d73e4a8c7f0ff63af4f6d19be117e90bd73eb1d62cf831c6b"
+checksum = "8b36ee98fd31ec7426d599183e8fe26932a8dc1fb76ddb6214d05493377d34ca"
 
 [[package]]
 name = "time-macros"
-version = "0.2.24"
+version = "0.2.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30cfb0125f12d9c277f35663a0a33f8c30190f4e4574868a330595412d34ebf3"
+checksum = "71e552d1249bf61ac2a52db88179fd0673def1e1ad8243a00d9ec9ed71fee3dd"
 dependencies = [
  "num-conv",
  "time-core",
@@ -1771,7 +1787,6 @@ dependencies = [
  "bytes",
  "libc",
  "mio",
- "parking_lot 0.12.5",
  "pin-project-lite",
  "signal-hook-registry",
  "socket2 0.5.7",
@@ -1813,7 +1828,7 @@ dependencies = [
  "futures-channel",
  "futures-util",
  "log",
- "parking_lot 0.12.5",
+ "parking_lot",
  "percent-encoding",
  "phf",
  "pin-project-lite",
@@ -1983,11 +1998,14 @@ dependencies = [
  "api",
  "auth-impls",
  "bytes",
+ "chrono",
  "http-body-util",
  "hyper 1.4.1",
  "hyper-util",
  "impls",
+ "log",
  "prost",
+ "rand 0.9.2",
  "serde",
  "tokio",
  "toml",
@@ -2129,28 +2147,6 @@ dependencies = [
  "web-sys",
 ]
 
-[[package]]
-name = "winapi"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
-dependencies = [
- "winapi-i686-pc-windows-gnu",
- "winapi-x86_64-pc-windows-gnu",
-]
-
-[[package]]
-name = "winapi-i686-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-
-[[package]]
-name = "winapi-x86_64-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-
 [[package]]
 name = "windows-core"
 version = "0.62.2"