diff --git a/counterparty-core/counterpartycore/lib/messages/data/get_oldest_tx.json b/counterparty-core/counterpartycore/lib/messages/data/get_oldest_tx.json
new file mode 100644
index 0000000000..998ffc11d7
--- /dev/null
+++ b/counterparty-core/counterpartycore/lib/messages/data/get_oldest_tx.json
@@ -0,0 +1,82 @@
+{
+    "1CEo6JeFgTTZBHRpnDUGWuTeWeG6X5fsHc-819476": {
+        "block_index": 819476,
+        "tx_hash": "58babe9a7ab0a3e5ba0faaab40697bed451f0cd2ea071d17ac86553a665064b4"
+    },
+    "1GsjsKKT4nH4GPmDnaxaZEDWgoBpmexwMA-820326": {
+        "block_index": 820321,
+        "tx_hash": "b61ac3ab1ba9d63d484e8f83e8b9607bd932c8f4b742095445c3527ab575d972"
+    },
+    "bc1qrdprg2uwug0r93eszza3jqk2nsp2475ggf5chu-820637": {
+        "block_index": 820633,
+        "tx_hash": "9eade5950a06f8e596283caaa95dba928aa2a5cd9c769e534dfc6a5fad188800"
+    },
+    "18xwWKKfkQmrAgaMVqHJ17Q9vzFAaXT4tf-821973": {
+        "block_index": 821851,
+        "tx_hash": "33bd1e9dbcdcded5206de365d5d9ab50f0b6b804a7da8c9e8e87cb8a2b1c98f4"
+    },
+    "1EaU4MjYNBqu2qaspXvUfqbz4i4sQ6GmhG-821973": {
+        "block_index": 821973,
+        "tx_hash": "72c867b209a24e5024b02a6935f3a1edb06c57f45284b4e2b484563458689572"
+    },
+    "bc1q8888888p9ffr9dwjs9g35fv6hwfqahfl8nw7l6-822887": {
+        "block_index": 822887,
+        "tx_hash": "cbf249d539e97e508a356ce86066262e487b9cdd00c783fcba40a6444c3b0a4c"
+    },
+    "bc1qvtrctrp9pggcfq3g4jfkrvn7g7sz0vskz2x0uk-823214": {
+        "block_index": 823214,
+        "tx_hash": "daa5c5d5e3e764f027e753f0064352a4a017982968c1fd04a7ea44c0701e640e"
+    },
+    "bc1qdc9aws4vdt0wcxlezreme486rht00qw69uhauq-824326": {
+        "block_index": 824322,
+        "tx_hash": "2dd3ba20ab7ba030b4e97bca43eebfbb6b0d07a5c535f891cbb101fbf4b7dbf9"
+    },
+    "bc1qzmgzxhmevcvu3x6pls2qmc7keucds26f6ssmsk-825182": {
+        "block_index": 825173,
+        "tx_hash": "9efc92753fb8c1a172253fa13c8b58ba55b733037d9ab8da2fe55de3d7e3970b"
+    },
+    "15W58br8XMQFHktmN2pHrkb44QPg7dEgTC-827798": {
+        "block_index": 787238,
+        "tx_hash": "bfc93ea574324f1794de90ee55f19eda423352578b57f17c618c6547a1043ebe"
+    },
+    "1L9J6k3vAQmg2ESsgLcYfHyLpZpQ4xgKuu-829953": {
+        "block_index": 829952,
+        "tx_hash": "c793679bf10990c18d904281af497254287fa09786ffc304d356a942054293a3"
+    },
+    "16k4dCds7kupHkWzRSmqDkHxJftuGCdmsd-832677": {
+        "block_index": 832675,
+        "tx_hash": "e1d917308b3a5bcaa592c0828d2192a322c8d2e988407a8c1781c8420fb5d60e"
+    },
+    "12xDGbtzh2zRtbfzVcdovUjDLJBCzisqgn-835815": {
+        "block_index": 835815,
+        "tx_hash": "4b3ad7bac2bf8f6573954cf9e0a0b0284c3f4303268a0748a5839b1aea3c7517"
+    },
+    "1Pp6exhf5bg2mTggVE3RjXo3a549UHb5qW-838178": {
+        "block_index": 838151,
+        "tx_hash": "4590db3233595442a1b0fb4bd0e6d08cf038bb5e78019558635f025a4ccbbad3"
+    },
+    "bc1qz80sh0wh026derm9pyg7xwv4lmryxktayxxfwq-842374": {
+        "block_index": 842374,
+        "tx_hash": "7a6149457a69efadd3ce92466a6bff712f962d8b56fba51fa4584b7a2b83b1de"
+    },
+    "bc1q2rn0c89mylzj6c26exda5y2nkezmzh4lh5rkkl-842375": {
+        "block_index": 842374,
+        "tx_hash": "3043db292b7f64cbe1cafa32bc733316b162d8a1f41f31a1e6cd224fd5b72415"
+    },
+    "bc1q4v00u7yf27g9ghju04th8cwc7jhnsyq5k966ff-844095": {
+        "block_index": 838068,
+        "tx_hash": "d74a68f8d30a1e18f8336ed91d2848465bb9496101fe71b8fe71edc9c0a59d1f"
+    },
+    "1GyyukjbQANSZsTrn31HDW8bQnhXYJW6d8-855009": {
+        "block_index": 855009,
+        "tx_hash": "6d4d1a1dee455935be72dfa0703e0d864eee6862067269040dab2dbb8cb0eddc"
+    },
+    "1LJCLfaKU6aNUn5w96cge7woiBE4Hn22x8-858887": {
+        "block_index": 0,
+        "tx_hash": "4587498c480700448b71753dbe86dabf9919c5a5cbff929cf1e4de4d2c161b33"
+    },
+    "1BxLHZ8fur3RMMyQWLGcNDqn5cyQxscuLd-864951": {
+        "block_index": 0,
+        "tx_hash": "c75fce0a6a28588816c302bbb6f8aa2a2e20824612f4013163c1e31edd314e07"
+    }
+}
\ No newline at end of file
diff --git a/counterparty-core/counterpartycore/lib/messages/dispenser.py b/counterparty-core/counterpartycore/lib/messages/dispenser.py
index aa5e0f6c41..6022d3df9c 100644
--- a/counterparty-core/counterpartycore/lib/messages/dispenser.py
+++ b/counterparty-core/counterpartycore/lib/messages/dispenser.py
@@ -6,13 +6,13 @@
 # of units of an asset for a given amount of BTC satoshis received.
 # It's a very simple but powerful semantic to allow swaps to operate on-chain.
 #
-
+import json
 import logging
+import os
 import struct
 from math import floor
 
 from counterpartycore.lib import (
-    backend,
     config,
     database,
     exceptions,
@@ -37,6 +37,17 @@
 STATUS_CLOSED = 10
 STATUS_CLOSING = 11
 
+CURR_DIR = os.path.dirname(os.path.realpath(__file__))
+with open(os.path.join(CURR_DIR, "data", "get_oldest_tx.json")) as f:
+    GET_OLDEST_TX_DATA = json.load(f)
+
+
+def get_oldest_tx(address: str, block_index: int):
+    key = f"{address}-{block_index}"
+    if key in GET_OLDEST_TX_DATA:
+        return GET_OLDEST_TX_DATA[key]
+    return {}
+
 
 def initialise(db):
     cursor = db.cursor()
@@ -385,7 +396,7 @@ def validate(
                             )
 
                         if util.enabled("dispenser_origin_permission_extended", block_index):
-                            address_oldest_transaction = backend.addrindexrs.get_oldest_tx(
+                            address_oldest_transaction = get_oldest_tx(
                                 query_address, block_index=util.CURRENT_BLOCK_INDEX
                             )
                             if (