use seed and chain length

apps/fortuna/provider-config.sample.yaml

@@ -1,5 +1,6 @@
 chains:
   lightlink-pegasus:
     commitments:
-      - metadata: db7dd9c5ea58d07815b5ac8fef6629e9a7d4ed6a25ffb8a5ee79e69b749ead301027000000000000
+      - seed: [219,125,217,197,234,88,208,120,21,181,172,143,239,102,41,233,167,212,237,106,37,255,184,165,238,121,230,155,116,158,173,48]
+        chain_length: 10000
         original_commitment_sequence_number: 104

apps/fortuna/src/command/run.rs

@@ -24,7 +24,6 @@ use {
         Result,
     },
     axum::Router,
-    hex,
     std::{
         collections::HashMap,
         net::SocketAddr,
@@ -153,15 +152,13 @@ pub async fn run(opts: &RunOptions) -> Result<()> {
         let mut hash_chains = provider_commitments
             .iter()
             .map(|x| {
-                let metadata =
-                    bincode::deserialize::<CommitmentMetadata>(hex::decode(&x.metadata)?.as_ref())?;
                 PebbleHashChain::from_config(
                     &secret,
                     &chain_id,
                     &opts.provider,
                     &chain_config.contract_addr,
-                    &metadata.seed,
-                    metadata.chain_length,
+                    &x.seed,
+                    x.chain_length,
                 )
             })
             .collect::<Result<Vec<PebbleHashChain>>>()?;

apps/fortuna/src/config.rs

@@ -212,6 +212,7 @@ impl ProviderChainConfig {
 
 #[derive(Clone, Debug, serde::Serialize, serde::Deserialize)]
 pub struct Commitment {
-    pub metadata:                            String,
+    pub seed:                                [u8; 32],
+    pub chain_length:                        u64,
     pub original_commitment_sequence_number: u64,
 }