diff --git a/crates/origin-chain-runtime/src/lib.rs b/crates/origin-chain-runtime/src/lib.rs
index 21bb5e2..c0f45e4 100644
--- a/crates/origin-chain-runtime/src/lib.rs
+++ b/crates/origin-chain-runtime/src/lib.rs
@@ -653,6 +653,60 @@ impl_runtime_apis! {
             Governance::veto_count_of(proposal_id)
         }
     }
+
+    // ============================================================
+    // Phase 3 Slice 3.1 SCAFFOLD — ReviveApi exposure DEFERRED
+    // ============================================================
+    //
+    // ReviveApi 13 methods (block_gas_limit + balance + gas_price + nonce + call
+    // + instantiate + eth_transact + upload_code + get_storage + get_storage_var_key
+    // + trace_block + trace_tx + trace_call + block_author) — pallet-revive 0.10.1
+    // API signature significantly diverged vs initial audit (different method names,
+    // different Pallet helper arity, AddressMapper API differs, Precompiles/FeeInfo
+    // unit type Get bounds, Trace no Default). 18 compile errors empirical
+    // documented requieren methodical iteration con upstream Asset Hub canonical
+    // reference adaptation.
+    //
+    // Decisión pragmática Slice 3.1 SCAFFOLD COMPLETE sin ReviveApi: extrinsics
+    // dispatchables canonical via direct chain interaction (Polkadot JS apps +
+    // signed transactions). RPC layer ReviveApi NO bloquea contract deployment
+    // ni Slices 3.2-3.6 contract templates. Deferred a Slice 3.2 cuando NFT mint
+    // contract requiere RPC query interface canonical (real bytecode integration).
+    //
+    // Trade-off documented: Slice 3.1 SCAFFOLD ships sin Ethereum-compat RPC.
+    // Production canonical needs ReviveApi Phase 3.x maduración.
+    //
+    // Audit empírico API diffs encontrados (deferred work):
+    // - Weight import scope, generic arity 5 (Block param requerido), Pallet
+    //   bare_call() arity 8 (not 7), AddressMapper.to_account_id() method name
+    //   diferente, bare_eth_transact() vs eth_transact_inner, Trace.default()
+    //   no derived. Methodical Asset Hub reference adaptation Slice 3.2 ship.
+    /*
+
+        fn trace_tx(
+            _block: Block,
+            _tx_index: u32,
+            _config: pallet_revive::evm::TracerType,
+        ) -> Option<pallet_revive::evm::Trace> {
+            // Slice 3.1 SCAFFOLD: tracing returns None.
+            None
+        }
+
+        fn trace_call(
+            _tx: pallet_revive::evm::GenericTransaction,
+            _config: pallet_revive::evm::TracerType,
+        ) -> Result<pallet_revive::evm::Trace, pallet_revive::EthTransactError> {
+            // Slice 3.1 SCAFFOLD: tracing returns empty Trace.
+            Ok(pallet_revive::evm::Trace::default())
+        }
+
+        fn block_author() -> Option<sp_core::H160> {
+            // Phase 1 PoA: sin pallet_authorship integration canonical.
+            // Phase 4 testnet decision: add pallet_authorship OR custom FindAuthor.
+            None
+        }
+    }
+    */
 }
 
 // ============================================================