diff --git a/src/bcmr/mod.rs b/src/bcmr/mod.rs
index 2b0506b..0728631 100644
--- a/src/bcmr/mod.rs
+++ b/src/bcmr/mod.rs
@@ -240,10 +240,14 @@ pub fn index_bcmr(
 
 #[cfg(test)]
 mod tests {
-    use bitcoincash::consensus::deserialize;
+    use bitcoincash::{consensus::deserialize, Block};
+
+    use crate::utiltx::ttor_sorted_kahn;
 
     use super::*;
 
+    use electrum_client_netagnostic::{Client, ElectrumApi, Param};
+
     #[test]
     fn test_parse_bcmr() {
         let tx_hex = "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";
@@ -270,4 +274,93 @@ mod tests {
         // The hash value in this BCMR is 64 bytes. Not a valid sha256 hash.
         assert!(result.is_none());
     }
+
+    #[test]
+    #[ignore] // Integration test - requires network access. Run with `cargo test olando_issue --ignored`
+    fn olando_issue() {
+        // Test that the indexer is able to follow the auth chain for OLANDO token (part of issue #15).
+
+        // Map: block height -> expected txid of BCMR auth update transaction
+        let blocks_with_update: HashMap<u32, &str> = [
+            (
+                919723,
+                "1987b8c8114c2cf8492467da319a8856e81f49345f6385e6992cd820871bef87",
+            ),
+            (
+                917546,
+                "6c422e57f64a2c21d3e9da9161e483393da17ee1a0d8aea3ebf9e6c944ddf473",
+            ),
+            (
+                911009,
+                "de926cb4c086ce4c0cd79379a53149c54a21f43ccab322bef8429d60cd53a6a1",
+            ),
+            (
+                910728,
+                "536e199357a02fe9ea071cf7d0df4431911fd2ad170867659e796f053f7e6045",
+            ),
+            (
+                908242,
+                "0370d0ae6f1f0c7b49b5c3f7e271a1ebf4daef9d91450f2316e878a0a78d6d08",
+            ),
+            (
+                906927,
+                "68a0067153db9925560d7adb956295b41de958058ccd78d5c1adfdf4e0e70ed9",
+            ),
+            (
+                906218,
+                "20e8074d404e5e80c6d8cbe30d51c754ab86ae0b58bc8ec17f12afdb6380195d",
+            ),
+            (
+                887082,
+                "6a806f2e01e11a2a4000bb736ffb5570dd55412582088abe95fce700a17a3922",
+            ),
+            (
+                887074,
+                "7c71bbe3e3f52c5bf9965f454e7f87b86f097ecfec0705360e9284f38c360d65",
+            ), // genesis
+        ]
+        .iter()
+        .cloned()
+        .collect();
+
+        let client = Client::new(&format!("tcp://rostrum.cauldron.quest:50001")).unwrap();
+
+        let mut conn = Connection::open_in_memory().unwrap();
+        crate::db::bcmr::prepare_tables(&conn);
+        let tx = conn.transaction().unwrap();
+
+        // Process blocks in ascending order (lowest to highest)
+        let mut sorted_blocks: Vec<_> = blocks_with_update.iter().collect();
+        sorted_blocks.sort_by(|a, b| a.0.cmp(b.0));
+
+        for (block_height, expected_hash) in sorted_blocks {
+            let block = client
+                .raw_call("blockchain.block.get", vec![Param::U32(*block_height)])
+                .unwrap();
+            let block: Block = deserialize(&hex::decode(block.as_str().unwrap()).unwrap()).unwrap();
+
+            // Process this block immediately
+            let block_hash = block.block_hash();
+            let sorted_txs = ttor_sorted_kahn(block.txdata);
+
+            let expected_txid = *expected_hash;
+            // Index the block
+            index_bcmr(&tx, &block_hash, sorted_txs).unwrap();
+
+            let mut stmt = tx
+                .prepare("SELECT COUNT(*) FROM auth_chain_entry WHERE txid = ?")
+                .unwrap();
+            let count: i64 = stmt
+                .query_row([expected_txid], |row| row.get(0))
+                .unwrap_or(0);
+
+            assert_eq!(
+                count, 1,
+                "Expected 1 BCMR auth update for txid: {} in block {}",
+                expected_txid, block_height
+            );
+        }
+
+        tx.commit().unwrap();
+    }
 }