bkpr: remove different currency support.

diff --git a/onchaind/test/run-grind_feerate-bug.c b/onchaind/test/run-grind_feerate-bug.c
index 539fb088..ff5ab45e 100644
--- a/onchaind/test/run-grind_feerate-bug.c
+++ b/onchaind/test/run-grind_feerate-bug.c
@@ -134,14 +134,6 @@ struct chain_coin_mvt *new_coin_external_spend(const tal_t *ctx UNNEEDED,
 					       struct mvt_tags tags)
 
 { fprintf(stderr, "new_coin_external_spend called!\n"); abort(); }
-/* Generated stub for new_coin_wallet_deposit */
-struct chain_coin_mvt *new_coin_wallet_deposit(const tal_t *ctx UNNEEDED,
-					       const struct bitcoin_outpoint *outpoint UNNEEDED,
-					       u32 blockheight UNNEEDED,
-					       struct amount_sat amount UNNEEDED,
-					       struct mvt_tags tags)
-
-{ fprintf(stderr, "new_coin_wallet_deposit called!\n"); abort(); }
 /* Generated stub for new_onchain_htlc_deposit */
 struct chain_coin_mvt *new_onchain_htlc_deposit(const tal_t *ctx UNNEEDED,
 						const struct bitcoin_outpoint *outpoint UNNEEDED,
diff --git a/onchaind/test/run-grind_feerate.c b/onchaind/test/run-grind_feerate.c
index ae942288..6ff7c6c3 100644
--- a/onchaind/test/run-grind_feerate.c
+++ b/onchaind/test/run-grind_feerate.c
@@ -184,14 +184,6 @@ struct chain_coin_mvt *new_coin_external_spend(const tal_t *ctx UNNEEDED,
 					       struct mvt_tags tags)
 
 { fprintf(stderr, "new_coin_external_spend called!\n"); abort(); }
-/* Generated stub for new_coin_wallet_deposit */
-struct chain_coin_mvt *new_coin_wallet_deposit(const tal_t *ctx UNNEEDED,
-					       const struct bitcoin_outpoint *outpoint UNNEEDED,
-					       u32 blockheight UNNEEDED,
-					       struct amount_sat amount UNNEEDED,
-					       struct mvt_tags tags)
-
-{ fprintf(stderr, "new_coin_wallet_deposit called!\n"); abort(); }
 /* Generated stub for new_onchain_htlc_deposit */
 struct chain_coin_mvt *new_onchain_htlc_deposit(const tal_t *ctx UNNEEDED,
 						const struct bitcoin_outpoint *outpoint UNNEEDED,
diff --git a/plugins/bkpr/bookkeeper.c b/plugins/bkpr/bookkeeper.c
index af398726..abf845ba 100644
--- a/plugins/bkpr/bookkeeper.c
+++ b/plugins/bkpr/bookkeeper.c
@@ -316,7 +316,8 @@ static struct command_result *json_inspect(struct command *cmd,
 						     ev->output_value);
 				json_add_amount_msat(res, "credit_msat",
 						     ev->credit);
-				json_add_string(res, "currency", ev->currency);
+				json_add_string(res, "currency",
+						chainparams->lightning_hrp);
 				if (ev->origin_acct)
 					json_add_string(res, "originating_account",
 							ev->origin_acct);
@@ -333,7 +334,7 @@ static struct command_result *json_inspect(struct command *cmd,
 							     "output_value_msat",
 							     ev->output_value);
 					json_add_string(res, "currency",
-							ev->currency);
+							chainparams->lightning_hrp);
 				}
 				json_add_string(res, "spend_tag", ev->tag);
 				json_add_txid(res, "spending_txid",
@@ -628,7 +629,6 @@ struct new_account_info {
 	struct account *acct;
 	struct amount_msat curr_bal;
 	u32 timestamp;
-	char *currency;
 };
 
 static void try_update_open_fees(struct command *cmd,
@@ -709,7 +709,6 @@ static bool new_missed_channel_account(struct command *cmd,
 				       const char *buf,
 				       const jsmntok_t *result,
 				       struct account *acct,
-				       const char *currency,
 				       u64 timestamp)
 {
 	struct chain_event *chain_ev;
@@ -762,7 +761,6 @@ static bool new_missed_channel_account(struct command *cmd,
 		ok = amount_msat_add(&chain_ev->output_value,
 				     amt, remote_amt);
 		assert(ok);
-		chain_ev->currency = tal_strdup(chain_ev, currency);
 		chain_ev->origin_acct = NULL;
 		/* 2s before the channel opened, minimum */
 		chain_ev->timestamp = timestamp - 2;
@@ -821,7 +819,6 @@ static bool new_missed_channel_account(struct command *cmd,
 						    push_credit,
 						    push_debit,
 						    AMOUNT_MSAT(0),
-						    currency,
 						    NULL, 0,
 						    timestamp - 1);
 			log_channel_event(db, acct, chan_ev);
@@ -905,7 +902,6 @@ static char *msat_find_diff(struct amount_msat balance,
 }
 
 static void log_journal_entry(struct account *acct,
-			      const char *currency,
 			      u64 timestamp,
 			      struct amount_msat credit_diff,
 			      struct amount_msat debit_diff)
@@ -923,7 +919,6 @@ static void log_journal_entry(struct account *acct,
 				    credit_diff,
 				    debit_diff,
 				    AMOUNT_MSAT(0),
-				    currency,
 				    NULL, 0,
 				    timestamp);
 	db_begin_transaction(db);
@@ -959,7 +954,6 @@ static struct command_result *listpeerchannels_multi_done(struct command *cmd,
 
 		if (!new_missed_channel_account(cmd, buf, result,
 					        info->acct,
-					        info->currency,
 					        info->timestamp)) {
 			plugin_log(cmd->plugin, LOG_BROKEN,
 				   "Unable to find account %s in listpeerchannels",
@@ -981,7 +975,6 @@ static struct command_result *listpeerchannels_multi_done(struct command *cmd,
 			plugin_err(cmd->plugin, "%s", err);
 
 		log_journal_entry(info->acct,
-				  info->currency,
 				  info->timestamp - 1,
 				  credit_diff, debit_diff);
 	}
@@ -1068,17 +1061,14 @@ static struct command_result *json_balance_snapshot(struct command *cmd,
 	json_for_each_arr(i, acct_tok, accounts_tok) {
 		struct account *acct;
 		struct amount_msat snap_balance, credit, debit, credit_diff, debit_diff;
-		char *acct_name, *currency;
+		char *acct_name;
 		bool existed;
 
 		err = json_scan(cmd, buf, acct_tok,
 				"{account_id:%"
-				",balance_msat:%"
-				",coin_type:%}",
+				",balance_msat:%}",
 				JSON_SCAN_TAL(tmpctx, json_strdup, &acct_name),
-				JSON_SCAN(json_to_msat, &snap_balance),
-				JSON_SCAN_TAL(tmpctx, json_strdup,
-					      &currency));
+				JSON_SCAN(json_to_msat, &snap_balance));
 		if (err)
 			plugin_err(cmd->plugin,
 				   "`balance_snapshot` payload did not"
@@ -1129,8 +1119,6 @@ static struct command_result *json_balance_snapshot(struct command *cmd,
 			info->acct = tal_steal(info, acct);
 			info->curr_bal = snap_balance;
 			info->timestamp = timestamp_now;
-			info->currency =
-				tal_strdup(info, currency);
 
 			tal_arr_expand(&new_accts, info);
 			continue;
@@ -1155,7 +1143,6 @@ static struct command_result *json_balance_snapshot(struct command *cmd,
 					       credit_diff,
 					       debit_diff,
 					       AMOUNT_MSAT(0),
-					       currency,
 					       NULL, 0,
 					       timestamp);
 
@@ -1372,7 +1359,6 @@ listpeerchannels_done(struct command *cmd,
 
 	if (new_missed_channel_account(cmd, buf, result,
 					info->acct,
-					info->ev->currency,
 					info->ev->timestamp)) {
 		db_begin_transaction(db);
 		account_get_credit_debit(cmd->plugin, db, info->acct->name,
@@ -1389,7 +1375,6 @@ listpeerchannels_done(struct command *cmd,
 			plugin_err(cmd->plugin, "%s", err);
 
 		log_journal_entry(info->acct,
-				  info->ev->currency,
 				  info->ev->timestamp - 1,
 				  credit_diff, debit_diff);
 	} else
@@ -1509,7 +1494,6 @@ parse_and_log_chain_move(struct command *cmd,
 
 	e->credit = credit;
 	e->debit = debit;
-	e->currency = tal_steal(e, coin_type);
 	e->timestamp = timestamp;
 	e->tag = mvt_tag_str(tags[0]);
 	e->desc = tal_steal(e, desc);
@@ -1671,7 +1655,6 @@ parse_and_log_channel_move(struct command *cmd,
 
 	e->credit = credit;
 	e->debit = debit;
-	e->currency = tal_steal(e, coin_type);
 	e->timestamp = timestamp;
 	e->tag = mvt_tag_str(tags[0]);
 	e->desc = tal_steal(e, desc);
@@ -1747,7 +1730,6 @@ static struct command_result *json_utxo_deposit(struct command *cmd, const char
 			",transfer_from:%"
 			",outpoint:%"
 			",amount_msat:%"
-			",coin_type:%"
 			",timestamp:%"
 			",blockheight:%"
 			"}}}",
@@ -1755,7 +1737,6 @@ static struct command_result *json_utxo_deposit(struct command *cmd, const char
 			JSON_SCAN_TAL(tmpctx, json_strdup, &ev->origin_acct),
 			JSON_SCAN(json_to_outpoint, &ev->outpoint),
 			JSON_SCAN(json_to_msat, &ev->credit),
-			JSON_SCAN_TAL(tmpctx, json_strdup, &ev->currency),
 			JSON_SCAN(json_to_u64, &ev->timestamp),
 			JSON_SCAN(json_to_u32, &ev->blockheight));
 
@@ -1824,7 +1805,6 @@ static struct command_result *json_utxo_spend(struct command *cmd, const char *b
 			",outpoint:%"
 			",spending_txid:%"
 			",amount_msat:%"
-			",coin_type:%"
 			",timestamp:%"
 			",blockheight:%"
 			"}}}",
@@ -1832,7 +1812,6 @@ static struct command_result *json_utxo_spend(struct command *cmd, const char *b
 			JSON_SCAN(json_to_outpoint, &ev->outpoint),
 			JSON_SCAN(json_to_txid, ev->spending_txid),
 			JSON_SCAN(json_to_msat, &ev->debit),
-			JSON_SCAN_TAL(tmpctx, json_strdup, &ev->currency),
 			JSON_SCAN(json_to_u64, &ev->timestamp),
 			JSON_SCAN(json_to_u32, &ev->blockheight));
 
diff --git a/plugins/bkpr/chain_event.c b/plugins/bkpr/chain_event.c
index a8e75028..7f49a5e7 100644
--- a/plugins/bkpr/chain_event.c
+++ b/plugins/bkpr/chain_event.c
@@ -13,7 +13,7 @@ void json_add_chain_event(struct json_stream *out, struct chain_event *ev)
 	json_add_string(out, "tag", ev->tag);
 	json_add_amount_msat(out, "credit_msat", ev->credit);
 	json_add_amount_msat(out, "debit_msat", ev->debit);
-	json_add_string(out, "currency", ev->currency);
+	json_add_string(out, "currency", chainparams->lightning_hrp);
 	json_add_outpoint(out, "outpoint", &ev->outpoint);
 
 	if (ev->spending_txid)
diff --git a/plugins/bkpr/chain_event.h b/plugins/bkpr/chain_event.h
index 28e14750..e04ba6f4 100644
--- a/plugins/bkpr/chain_event.h
+++ b/plugins/bkpr/chain_event.h
@@ -47,9 +47,6 @@ struct chain_event {
 	/* Total 'amount' of output on this chain event */
 	struct amount_msat output_value;
 
-	/* What token are the credit/debits? */
-	const char *currency;
-
 	/* What time did the event happen */
 	u64 timestamp;
 
diff --git a/plugins/bkpr/channel_event.c b/plugins/bkpr/channel_event.c
index b1f5f9f2..8a7b3c09 100644
--- a/plugins/bkpr/channel_event.c
+++ b/plugins/bkpr/channel_event.c
@@ -1,5 +1,6 @@
 #include "config.h"
 
+#include <bitcoin/chainparams.h>
 #include <ccan/crypto/sha256/sha256.h>
 #include <ccan/tal/str/str.h>
 #include <common/amount.h>
@@ -11,7 +12,6 @@ struct channel_event *new_channel_event(const tal_t *ctx,
 					struct amount_msat credit,
 					struct amount_msat debit,
 					struct amount_msat fees,
-					const char *currency,
 					struct sha256 *payment_id STEALS,
 					u32 part_id,
 					u64 timestamp)
@@ -22,7 +22,6 @@ struct channel_event *new_channel_event(const tal_t *ctx,
 	ev->credit = credit;
 	ev->debit = debit;
 	ev->fees = fees;
-	ev->currency = tal_strdup(ev, currency);
 	ev->payment_id = tal_steal(ev, payment_id);
 	ev->part_id = part_id;
 	ev->timestamp = timestamp;
@@ -43,7 +42,7 @@ void json_add_channel_event(struct json_stream *out,
 	json_add_amount_msat(out, "debit_msat", ev->debit);
 	if (!amount_msat_is_zero(ev->fees))
 		json_add_amount_msat(out, "fees_msat", ev->fees);
-	json_add_string(out, "currency", ev->currency);
+	json_add_string(out, "currency", chainparams->lightning_hrp);
 	if (ev->payment_id) {
 		json_add_sha256(out, "payment_id", ev->payment_id);
 		json_add_u32(out, "part_id", ev->part_id);
diff --git a/plugins/bkpr/channel_event.h b/plugins/bkpr/channel_event.h
index 3cd8c67b..c844f82d 100644
--- a/plugins/bkpr/channel_event.h
+++ b/plugins/bkpr/channel_event.h
@@ -32,9 +32,6 @@ struct channel_event {
 	/* Total 'fees' related to this channel event */
 	struct amount_msat fees;
 
-	/* What token are the credit/debits? */
-	const char *currency;
-
 	/* Payment identifier (typically the preimage hash) */
 	struct sha256 *payment_id;
 
@@ -56,7 +53,6 @@ struct channel_event *new_channel_event(const tal_t *ctx,
 					struct amount_msat credit,
 					struct amount_msat debit,
 					struct amount_msat fees,
-					const char *currency,
 					struct sha256 *payment_id STEALS,
 					u32 part_id,
 					u64 timestamp);
diff --git a/plugins/bkpr/incomestmt.c b/plugins/bkpr/incomestmt.c
index a47422af..99908868 100644
--- a/plugins/bkpr/incomestmt.c
+++ b/plugins/bkpr/incomestmt.c
@@ -1,4 +1,5 @@
 #include "config.h"
+#include <bitcoin/chainparams.h>
 #include <ccan/array_size/array_size.h>
 #include <ccan/tal/str/str.h>
 #include <common/coin_mvt.h>
@@ -43,7 +44,6 @@ static struct income_event *chain_to_income(const tal_t *ctx,
 	inc->credit = credit;
 	inc->debit = debit;
 	inc->fees = AMOUNT_MSAT(0);
-	inc->currency = tal_strdup(inc, ev->currency);
 	inc->timestamp = ev->timestamp;
 	inc->outpoint = tal_dup(inc, struct bitcoin_outpoint, &ev->outpoint);
 	inc->desc = tal_strdup_or_null(inc, ev->desc);
@@ -65,7 +65,6 @@ static struct income_event *channel_to_income(const tal_t *ctx,
 	inc->credit = credit;
 	inc->debit = debit;
 	inc->fees = ev->fees;
-	inc->currency = tal_strdup(inc, ev->currency);
 	inc->timestamp = ev->timestamp;
 	inc->outpoint = NULL;
 	inc->txid = NULL;
@@ -86,7 +85,6 @@ static struct income_event *onchainfee_to_income(const tal_t *ctx,
 	inc->credit = fee->debit;
 	inc->debit = fee->credit;
 	inc->fees = AMOUNT_MSAT(0);
-	inc->currency = tal_strdup(inc, fee->currency);
 	inc->timestamp = fee->timestamp;
 	inc->txid = tal_dup(inc, struct bitcoin_txid, &fee->txid);
 	inc->outpoint = NULL;
@@ -296,7 +294,6 @@ static struct onchain_fee **find_consolidated_fees(const tal_t *ctx,
 		fee = tal(fee_sums, struct onchain_fee);
 		fee->credit = sums[i]->fees_paid;
 		fee->debit = AMOUNT_MSAT(0);
-		fee->currency = tal_steal(fee, sums[i]->currency);
 		fee->acct_name = tal_steal(fee, sums[i]->acct_name);
 		fee->txid = *sums[i]->txid;
 
@@ -429,7 +426,7 @@ void json_add_income_event(struct json_stream *out, struct income_event *ev)
 	json_add_string(out, "tag", ev->tag);
 	json_add_amount_msat(out, "credit_msat", ev->credit);
 	json_add_amount_msat(out, "debit_msat", ev->debit);
-	json_add_string(out, "currency", ev->currency);
+	json_add_string(out, "currency", chainparams->lightning_hrp);
 	json_add_u64(out, "timestamp", ev->timestamp);
 
 	if (ev->desc)
@@ -454,16 +451,6 @@ const char *csv_filename(const tal_t *ctx, const struct csv_fmt *fmt)
 		       (unsigned long)time_now().ts.tv_sec);
 }
 
-static char *convert_asset_type(struct income_event *ev)
-{
-	/* We use the bech32 human readable part which is "bc"
-	 * for mainnet -> map to 'BTC' for cointracker */
-	if (streq(ev->currency, "bc"))
-		return "btc";
-
-	return ev->currency;
-}
-
 static void cointrack_header(FILE *csvf)
 {
 	fprintf(csvf,
@@ -494,6 +481,15 @@ static char *income_event_cointrack_type(const struct income_event *ev)
 	return "";
 }
 
+/* We use the bech32 human readable part which is "bc"
+ * for mainnet -> map to 'BTC' for cointracker */
+static const char *asset_type_name(void)
+{
+	if (streq(chainparams->lightning_hrp, "bc"))
+		return "btc";
+	return chainparams->lightning_hrp;
+}
+
 static void cointrack_entry(const tal_t *ctx, FILE *csvf, struct income_event *ev)
 {
 	/* Date mm/dd/yyyy HH:MM:SS UTC */
@@ -515,7 +511,7 @@ static void cointrack_entry(const tal_t *ctx, FILE *csvf, struct income_event *e
 	if (!amount_msat_is_zero(ev->credit)) {
 		fprintf(csvf, "%s", fmt_amount_msat_btc(ctx, ev->credit, false));
 		fprintf(csvf, ",");
-		fprintf(csvf, "%s", convert_asset_type(ev));
+		fprintf(csvf, "%s", asset_type_name());
 	} else
 		fprintf(csvf, ",");
 
@@ -525,7 +521,7 @@ static void cointrack_entry(const tal_t *ctx, FILE *csvf, struct income_event *e
 	if (!amount_msat_is_zero(ev->debit)) {
 		fprintf(csvf, "%s", fmt_amount_msat_btc(ctx, ev->debit, false));
 		fprintf(csvf, ",");
-		fprintf(csvf, "%s", convert_asset_type(ev));
+		fprintf(csvf, "%s", asset_type_name());
 	} else
 		fprintf(csvf, ",");
 
@@ -536,7 +532,7 @@ static void cointrack_entry(const tal_t *ctx, FILE *csvf, struct income_event *e
 	    && streq(ev->tag, mvt_tag_str(MVT_INVOICE))) {
 		fprintf(csvf, "%s", fmt_amount_msat_btc(ctx, ev->fees, false));
 		fprintf(csvf, ",");
-		fprintf(csvf, "%s", convert_asset_type(ev));
+		fprintf(csvf, "%s", asset_type_name());
 	} else
 		fprintf(csvf, ",");
 
@@ -587,7 +583,7 @@ static void koinly_entry(const tal_t *ctx, FILE *csvf, struct income_event *ev)
 	if (!amount_msat_is_zero(ev->debit)) {
 		fprintf(csvf, "%s", fmt_amount_msat_btc(ctx, ev->debit, false));
 		fprintf(csvf, ",");
-		fprintf(csvf, "%s", convert_asset_type(ev));
+		fprintf(csvf, "%s", asset_type_name());
 	} else
 		fprintf(csvf, ",");
 
@@ -597,7 +593,7 @@ static void koinly_entry(const tal_t *ctx, FILE *csvf, struct income_event *ev)
 	if (!amount_msat_is_zero(ev->credit)) {
 		fprintf(csvf, "%s", fmt_amount_msat_btc(ctx, ev->credit, false));
 		fprintf(csvf, ",");
-		fprintf(csvf, "%s", convert_asset_type(ev));
+		fprintf(csvf, "%s", asset_type_name());
 	} else
 		fprintf(csvf, ",");
 
@@ -609,7 +605,7 @@ static void koinly_entry(const tal_t *ctx, FILE *csvf, struct income_event *ev)
 	    && streq(ev->tag, mvt_tag_str(MVT_INVOICE))) {
 		fprintf(csvf, "%s", fmt_amount_msat_btc(ctx, ev->fees, false));
 		fprintf(csvf, ",");
-		fprintf(csvf, "%s", convert_asset_type(ev));
+		fprintf(csvf, "%s", asset_type_name());
 	} else
 		fprintf(csvf, ",");
 
@@ -728,7 +724,7 @@ static void harmony_entry(const tal_t *ctx, FILE *csvf, struct income_event *ev)
 	fprintf(csvf, ",");
 
 	/* ",Asset"  */
-	fprintf(csvf, "%s", convert_asset_type(ev));
+	fprintf(csvf, "%s", asset_type_name());
 	fprintf(csvf, ",");
 
 	/* ",Transaction ID" */
@@ -794,7 +790,7 @@ static void quickbooks_entry(const tal_t *ctx, FILE *csvf, struct income_event *
 
 	/* Description */
 	fprintf(csvf, "%s (%s) %s: %s",
-		ev->tag, ev->acct_name, ev->currency,
+		ev->tag, ev->acct_name, asset_type_name(),
 		ev->desc ? csv_safe_str(ev, ev->desc) : "no desc");
 	fprintf(csvf, ",");
 
diff --git a/plugins/bkpr/incomestmt.h b/plugins/bkpr/incomestmt.h
index 1919ee8a..b381598f 100644
--- a/plugins/bkpr/incomestmt.h
+++ b/plugins/bkpr/incomestmt.h
@@ -14,7 +14,6 @@ struct income_event {
 	/* Some CSVs require us to put fees on the
 	 * same line as another entry */
 	struct amount_msat fees;
-	char *currency;
 	u64 timestamp;
 
 	struct bitcoin_outpoint *outpoint;
diff --git a/plugins/bkpr/onchain_fee.c b/plugins/bkpr/onchain_fee.c
index de4fea0e..08afe69a 100644
--- a/plugins/bkpr/onchain_fee.c
+++ b/plugins/bkpr/onchain_fee.c
@@ -1,4 +1,5 @@
 #include "config.h"
+#include <bitcoin/chainparams.h>
 #include <common/json_stream.h>
 #include <plugins/bkpr/onchain_fee.h>
 
@@ -12,7 +13,7 @@ void json_add_onchain_fee(struct json_stream *out,
 	json_add_string(out, "tag", "onchain_fee");
 	json_add_amount_msat(out, "credit_msat", fee->credit);
 	json_add_amount_msat(out, "debit_msat", fee->debit);
-	json_add_string(out, "currency", fee->currency);
+	json_add_string(out, "currency", chainparams->lightning_hrp);
 	json_add_u64(out, "timestamp", fee->timestamp);
 	json_add_txid(out, "txid", &fee->txid);
 	json_object_end(out);
diff --git a/plugins/bkpr/onchain_fee.h b/plugins/bkpr/onchain_fee.h
index 34f95407..03773a01 100644
--- a/plugins/bkpr/onchain_fee.h
+++ b/plugins/bkpr/onchain_fee.h
@@ -23,9 +23,6 @@ struct onchain_fee {
 	struct amount_msat credit;
 	struct amount_msat debit;
 
-	/* What token are fees? */
-	char *currency;
-
 	/* Timestamp of the event that created this fee update */
 	u64 timestamp;
 
diff --git a/plugins/bkpr/recorder.c b/plugins/bkpr/recorder.c
index 77d8096a..6924527d 100644
--- a/plugins/bkpr/recorder.c
+++ b/plugins/bkpr/recorder.c
@@ -36,7 +36,6 @@ static struct chain_event *stmt2chain_event(const tal_t *ctx, struct db_stmt *st
 	e->debit = db_col_amount_msat(stmt, "e.debit");
 	e->output_value = db_col_amount_msat(stmt, "e.output_value");
 
-	e->currency = db_col_strdup(e, stmt, "e.currency");
 	e->timestamp = db_col_u64(stmt, "e.timestamp");
 	e->blockheight = db_col_int(stmt, "e.blockheight");
 
@@ -101,7 +100,6 @@ static struct channel_event *stmt2channel_event(const tal_t *ctx, struct db_stmt
 	e->debit = db_col_amount_msat(stmt, "e.debit");
 	e->fees = db_col_amount_msat(stmt, "e.fees");
 
-	e->currency = db_col_strdup(e, stmt, "e.currency");
 	if (!db_col_is_null(stmt, "e.payment_id")) {
 		e->payment_id = tal(e, struct sha256);
 		db_col_sha256(stmt, "e.payment_id", e->payment_id);
@@ -174,7 +172,6 @@ struct chain_event **list_chain_events_timebox(const tal_t *ctx,
 				     ", e.credit"
 				     ", e.debit"
 				     ", e.output_value"
-				     ", e.currency"
 				     ", e.timestamp"
 				     ", e.blockheight"
 				     ", e.utxo_txid"
@@ -216,7 +213,6 @@ struct chain_event **account_get_chain_events(const tal_t *ctx,
 				     ", e.credit"
 				     ", e.debit"
 				     ", e.output_value"
-				     ", e.currency"
 				     ", e.timestamp"
 				     ", e.blockheight"
 				     ", e.utxo_txid"
@@ -251,7 +247,6 @@ static struct chain_event **find_txos_for_tx(const tal_t *ctx,
 				     ", e.credit"
 				     ", e.debit"
 				     ", e.output_value"
-				     ", e.currency"
 				     ", e.timestamp"
 				     ", e.blockheight"
 				     ", e.utxo_txid"
@@ -283,7 +278,6 @@ struct fee_sum **calculate_onchain_fee_sums(const tal_t *ctx, struct db *db)
 				     "  of.txid"
 				     ", of.account_id"
 				     ", a.name"
-				     ", of.currency"
 				     ", CAST(SUM(of.credit) AS BIGINT) as credit"
 				     ", CAST(SUM(of.debit) AS BIGINT) as debit"
 				     " FROM onchain_fees of"
@@ -292,7 +286,6 @@ struct fee_sum **calculate_onchain_fee_sums(const tal_t *ctx, struct db *db)
 				     " GROUP BY of.txid"
 				     ", of.account_id"
 				     ", a.name"
-				     ", of.currency"
 				     " ORDER BY txid, account_id"));
 
 	db_query_prepared(stmt);
@@ -309,7 +302,6 @@ struct fee_sum **calculate_onchain_fee_sums(const tal_t *ctx, struct db *db)
 		db_col_txid(stmt, "of.txid", sum->txid);
 		sum->acct_db_id = db_col_u64(stmt, "of.account_id");
 		sum->acct_name = db_col_strdup(sum, stmt, "a.name");
-		sum->currency = db_col_strdup(sum, stmt, "of.currency");
 		sum->fees_paid = db_col_amount_msat(stmt, "credit");
 		debit = db_col_amount_msat(stmt, "debit");
 
@@ -706,7 +698,6 @@ struct chain_event *find_chain_event_by_id(const tal_t *ctx,
 				     ", e.credit"
 				     ", e.debit"
 				     ", e.output_value"
-				     ", e.currency"
 				     ", e.timestamp"
 				     ", e.blockheight"
 				     ", e.utxo_txid"
@@ -749,7 +740,6 @@ struct chain_event **get_chain_events_by_outpoint(const tal_t *ctx,
 					     ", e.credit"
 					     ", e.debit"
 					     ", e.output_value"
-					     ", e.currency"
 					     ", e.timestamp"
 					     ", e.blockheight"
 					     ", e.utxo_txid"
@@ -776,7 +766,6 @@ struct chain_event **get_chain_events_by_outpoint(const tal_t *ctx,
 					     ", e.credit"
 					     ", e.debit"
 					     ", e.output_value"
-					     ", e.currency"
 					     ", e.timestamp"
 					     ", e.blockheight"
 					     ", e.utxo_txid"
@@ -812,7 +801,6 @@ struct chain_event **get_chain_events_by_id(const tal_t *ctx,
 				     ", e.credit"
 				     ", e.debit"
 				     ", e.output_value"
-				     ", e.currency"
 				     ", e.timestamp"
 				     ", e.blockheight"
 				     ", e.utxo_txid"
@@ -853,7 +841,6 @@ static struct chain_event *find_chain_event(const tal_t *ctx,
 					     ", e.credit"
 					     ", e.debit"
 					     ", e.output_value"
-					     ", e.currency"
 					     ", e.timestamp"
 					     ", e.blockheight"
 					     ", e.utxo_txid"
@@ -882,7 +869,6 @@ static struct chain_event *find_chain_event(const tal_t *ctx,
 					     ", e.credit"
 					     ", e.debit"
 					     ", e.output_value"
-					     ", e.currency"
 					     ", e.timestamp"
 					     ", e.blockheight"
 					     ", e.utxo_txid"
@@ -1003,7 +989,6 @@ struct channel_event **list_channel_events_timebox(const tal_t *ctx,
 				     ", e.credit"
 				     ", e.debit"
 				     ", e.fees"
-				     ", e.currency"
 				     ", e.payment_id"
 				     ", e.part_id"
 				     ", e.timestamp"
@@ -1050,7 +1035,6 @@ struct channel_event **account_get_channel_events(const tal_t *ctx,
 				     ", e.credit"
 				     ", e.debit"
 				     ", e.fees"
-				     ", e.currency"
 				     ", e.payment_id"
 				     ", e.part_id"
 				     ", e.timestamp"
@@ -1080,7 +1064,6 @@ struct channel_event **get_channel_events_by_id(const tal_t *ctx,
 				     ", e.credit"
 				     ", e.debit"
 				     ", e.fees"
-				     ", e.currency"
 				     ", e.payment_id"
 				     ", e.part_id"
 				     ", e.timestamp"
@@ -1106,7 +1089,6 @@ static struct onchain_fee *stmt2onchain_fee(const tal_t *ctx,
 	db_col_txid(stmt, "of.txid", &of->txid);
 	of->credit = db_col_amount_msat(stmt, "of.credit");
 	of->debit = db_col_amount_msat(stmt, "of.debit");
-	of->currency = db_col_strdup(of, stmt, "of.currency");
 	of->timestamp = db_col_u64(stmt, "of.timestamp");
 	of->update_count = db_col_int(stmt, "of.update_count");
 
@@ -1144,7 +1126,6 @@ struct onchain_fee **account_get_chain_fees(const tal_t *ctx, struct db *db,
 				     ", of.txid"
 				     ", of.credit"
 				     ", of.debit"
-				     ", of.currency"
 				     ", of.timestamp"
 				     ", of.update_count"
 				     " FROM onchain_fees of"
@@ -1171,7 +1152,6 @@ struct onchain_fee **get_chain_fees_by_txid(const tal_t *ctx, struct db *db,
 				     ", of.txid"
 				     ", of.credit"
 				     ", of.debit"
-				     ", of.currency"
 				     ", of.timestamp"
 				     ", of.update_count"
 				     " FROM onchain_fees of"
@@ -1198,7 +1178,6 @@ struct onchain_fee **list_chain_fees_timebox(const tal_t *ctx, struct db *db,
 				     ", of.txid"
 				     ", of.credit"
 				     ", of.debit"
-				     ", of.currency"
 				     ", of.timestamp"
 				     ", of.update_count"
 				     " FROM onchain_fees of"
@@ -1306,7 +1285,6 @@ struct onchain_fee **account_onchain_fees(const tal_t *ctx,
 				     ", of.txid"
 				     ", of.credit"
 				     ", of.debit"
-				     ", of.currency"
 				     ", of.timestamp"
 				     ", of.update_count"
 				     " FROM onchain_fees of"
@@ -1495,7 +1473,6 @@ void log_channel_event(struct db *db,
 				     ", credit"
 				     ", debit"
 				     ", fees"
-				     ", currency"
 				     ", payment_id"
 				     ", part_id"
 				     ", timestamp"
@@ -1503,14 +1480,13 @@ void log_channel_event(struct db *db,
 				     ", rebalance_id"
 				     ")"
 				     " VALUES"
-				     " (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);"));
+				     " (?, ?, ?, ?, ?, ?, ?, ?, ?, ?);"));
 
 	db_bind_u64(stmt, acct->db_id);
 	db_bind_text(stmt, e->tag);
 	db_bind_amount_msat(stmt, e->credit);
 	db_bind_amount_msat(stmt, e->debit);
 	db_bind_amount_msat(stmt, e->fees);
-	db_bind_text(stmt, e->currency);
 	if (e->payment_id)
 		db_bind_sha256(stmt, e->payment_id);
 	else
@@ -1548,7 +1524,6 @@ struct chain_event **find_chain_events_bytxid(const tal_t *ctx, struct db *db,
 				     ", e.credit"
 				     ", e.debit"
 				     ", e.output_value"
-				     ", e.currency"
 				     ", e.timestamp"
 				     ", e.blockheight"
 				     ", e.utxo_txid"
@@ -1595,7 +1570,6 @@ static void insert_chain_fees_diff(struct db *db,
 				   u64 acct_id,
 				   struct bitcoin_txid *txid,
 				   struct amount_msat amount,
-				   const char *currency,
 				   u64 timestamp)
 {
 	struct db_stmt *stmt;
@@ -1653,17 +1627,15 @@ static void insert_chain_fees_diff(struct db *db,
 				     ", txid"
 				     ", credit"
 				     ", debit"
-				     ", currency"
 				     ", timestamp"
 				     ", update_count"
 				     ") VALUES"
-				     " (?, ?, ?, ?, ?, ?, ?);"));
+				     " (?, ?, ?, ?, ?, ?);"));
 
 	db_bind_u64(stmt, acct_id);
 	db_bind_txid(stmt, txid);
 	db_bind_amount_msat(stmt, credit);
 	db_bind_amount_msat(stmt, debit);
-	db_bind_text(stmt, currency);
 	db_bind_u64(stmt, timestamp);
 	db_bind_int(stmt, ++update_count);
 	db_exec_prepared_v2(take(stmt));
@@ -1731,7 +1703,6 @@ char *update_channel_onchain_fees(const tal_t *ctx,
 				       diff,
 				       AMOUNT_MSAT(0),
 				       AMOUNT_MSAT(0),
-				       close_ev->currency,
 				       NULL, 0,
 				       close_ev->timestamp);
 		log_channel_event(db, acct, ev);
@@ -1741,7 +1712,6 @@ char *update_channel_onchain_fees(const tal_t *ctx,
 				       AMOUNT_MSAT(0),
 				       diff,
 				       AMOUNT_MSAT(0),
-				       close_ev->currency,
 				       NULL, 0,
 				       close_ev->timestamp);
 		log_channel_event(db, acct, ev);
@@ -1755,7 +1725,7 @@ char *update_channel_onchain_fees(const tal_t *ctx,
 
 		insert_chain_fees_diff(db, acct->db_id,
 				       close_ev->spending_txid,
-				       fees, close_ev->currency,
+				       fees,
 				       close_ev->timestamp);
 	}
 
@@ -2037,7 +2007,6 @@ char *maybe_update_onchain_fees(const tal_t *ctx, struct db *db,
 			 * *was* the only game in town */
 			insert_chain_fees_diff(db, last_id, txid,
 					       AMOUNT_MSAT(0),
-					       events[i]->currency,
 					       events[i]->timestamp);
 			continue;
 		}
@@ -2056,9 +2025,7 @@ char *maybe_update_onchain_fees(const tal_t *ctx, struct db *db,
 		} else
 			fees = fee_part_msat;
 
-		/* FIXME: fee_currency property of acct? */
 		insert_chain_fees_diff(db, last_id, txid, fees,
-				       events[i]->currency,
 				       events[i]->timestamp);
 
 	}
@@ -2127,7 +2094,6 @@ bool log_chain_event(struct db *db,
 				     ", credit"
 				     ", debit"
 				     ", output_value"
-				     ", currency"
 				     ", timestamp"
 				     ", blockheight"
 				     ", utxo_txid"
@@ -2139,7 +2105,7 @@ bool log_chain_event(struct db *db,
 				     ", spliced"
 				     ")"
 				     " VALUES "
-				     "(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);"));
+				     "(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);"));
 
 	db_bind_u64(stmt, acct->db_id);
 	if (e->origin_acct)
@@ -2150,7 +2116,6 @@ bool log_chain_event(struct db *db,
 	db_bind_amount_msat(stmt, e->credit);
 	db_bind_amount_msat(stmt, e->debit);
 	db_bind_amount_msat(stmt, e->output_value);
-	db_bind_text(stmt, e->currency);
 	db_bind_u64(stmt, e->timestamp);
 	db_bind_int(stmt, e->blockheight);
 	db_bind_txid(stmt, &e->outpoint.txid);
diff --git a/plugins/bkpr/recorder.h b/plugins/bkpr/recorder.h
index db1ef5a7..1e508889 100644
--- a/plugins/bkpr/recorder.h
+++ b/plugins/bkpr/recorder.h
@@ -18,7 +18,6 @@ struct onchain_fee;
 struct fee_sum {
 	u64 acct_db_id;
 	char *acct_name;
-	char *currency;
 	struct bitcoin_txid *txid;
 	struct amount_msat fees_paid;
 };
diff --git a/plugins/bkpr/test/run-bkpr_db.c b/plugins/bkpr/test/run-bkpr_db.c
index 75505df5..f512b5b5 100644
--- a/plugins/bkpr/test/run-bkpr_db.c
+++ b/plugins/bkpr/test/run-bkpr_db.c
@@ -208,7 +208,6 @@ struct channel_event *new_channel_event(const tal_t *ctx UNNEEDED,
 					struct amount_msat credit UNNEEDED,
 					struct amount_msat debit UNNEEDED,
 					struct amount_msat fees UNNEEDED,
-					const char *currency UNNEEDED,
 					struct sha256 *payment_id STEALS UNNEEDED,
 					u32 part_id UNNEEDED,
 					u64 timestamp UNNEEDED)
diff --git a/plugins/bkpr/test/run-recorder.c b/plugins/bkpr/test/run-recorder.c
index d5e09fe6..b2e352e9 100644
--- a/plugins/bkpr/test/run-recorder.c
+++ b/plugins/bkpr/test/run-recorder.c
@@ -214,7 +214,6 @@ struct channel_event *new_channel_event(const tal_t *ctx UNNEEDED,
 					struct amount_msat credit UNNEEDED,
 					struct amount_msat debit UNNEEDED,
 					struct amount_msat fees UNNEEDED,
-					const char *currency UNNEEDED,
 					struct sha256 *payment_id STEALS UNNEEDED,
 					u32 part_id UNNEEDED,
 					u64 timestamp UNNEEDED)
@@ -313,7 +312,6 @@ static bool channel_events_eq(struct channel_event *e1, struct channel_event *e2
 	CHECK((e1->rebalance_id != NULL) == (e2->rebalance_id != NULL));
 	if (e1->rebalance_id)
 		CHECK(*e1->rebalance_id == *e2->rebalance_id);
-	CHECK(streq(e1->currency, e2->currency));
 	CHECK((e1->payment_id != NULL) == (e2->payment_id != NULL));
 	if (e1->payment_id)
 		CHECK(sha256_eq(e1->payment_id, e2->payment_id));
@@ -338,7 +336,6 @@ static bool chain_events_eq(struct chain_event *e1, struct chain_event *e2)
 	CHECK(amount_msat_eq(e1->credit, e2->credit));
 	CHECK(amount_msat_eq(e1->debit, e2->debit));
 	CHECK(amount_msat_eq(e1->output_value, e2->output_value));
-	CHECK(streq(e1->currency, e2->currency));
 	CHECK(e1->timestamp == e2->timestamp);
 	CHECK(e1->blockheight == e2->blockheight);
 	CHECK(e1->stealable == e2->stealable);
@@ -374,7 +371,6 @@ static struct channel_event *make_channel_event(const tal_t *ctx,
 	ev->credit = credit;
 	ev->debit = debit;
 	ev->fees = AMOUNT_MSAT(104);
-	ev->currency = "btc";
 	ev->timestamp = 1919191;
 	ev->part_id = 19;
 	ev->tag = tag;
@@ -404,7 +400,6 @@ static struct chain_event *make_chain_event(const tal_t *ctx,
 	ev->credit = credit;
 	ev->debit = debit;
 	ev->output_value = output_val;
-	ev->currency = "btc";
 	ev->timestamp = 1919191;
 	ev->blockheight = blockheight;
 	ev->stealable = false;
@@ -730,7 +725,6 @@ static bool test_onchain_fee_chan_close(const tal_t *ctx, struct plugin *p)
 	CHECK(tal_count(ofs) == 4);
 	for (size_t i = 0; i < tal_count(ofs); i++) {
 		CHECK(ofs[i]->acct_db_id == acct->db_id);
-		CHECK(streq(ofs[i]->currency, "btc"));
 
 		memset(&txid, '1', sizeof(struct bitcoin_txid));
 		if (bitcoin_txid_eq(&txid, &ofs[i]->txid)) {
@@ -881,7 +875,6 @@ static bool test_onchain_fee_chan_open(const tal_t *ctx, struct plugin *p)
 				     amount_msat(exp_results[i].debit)));
 		CHECK(ofs[i]->update_count == exp_results[i].update_count);
 
-		CHECK(streq(ofs[i]->currency, "btc"));
 		CHECK(bitcoin_txid_eq(&ofs[i]->txid, &txid));
 	}
 
@@ -993,7 +986,6 @@ static bool test_channel_event_crud(const tal_t *ctx, struct plugin *p)
 	ev1->credit = AMOUNT_MSAT(100);
 	ev1->debit = AMOUNT_MSAT(102);
 	ev1->fees = AMOUNT_MSAT(104);
-	ev1->currency = "btc";
 	ev1->timestamp = 11111;
 	ev1->part_id = 19;
 	ev1->desc = tal_strdup(ev1, "hello desc1");
@@ -1009,7 +1001,6 @@ static bool test_channel_event_crud(const tal_t *ctx, struct plugin *p)
 	ev2->credit = AMOUNT_MSAT(200);
 	ev2->debit = AMOUNT_MSAT(202);
 	ev2->fees = AMOUNT_MSAT(204);
-	ev2->currency = "brct";
 	ev2->timestamp = 22222;
 	ev2->part_id = 0;
 	ev2->tag = tal_fmt(ev2, "deposit");
@@ -1023,7 +1014,6 @@ static bool test_channel_event_crud(const tal_t *ctx, struct plugin *p)
 	ev3->credit = AMOUNT_MSAT(300);
 	ev3->debit = AMOUNT_MSAT(302);
 	ev3->fees = AMOUNT_MSAT(304);
-	ev3->currency = "brct";
 	ev3->timestamp = 33333;
 	ev3->part_id = 5;
 	ev3->tag = tal_fmt(ev3, "routed");
@@ -1082,7 +1072,6 @@ static bool test_chain_event_crud(const tal_t *ctx, struct plugin *p)
 	ev1->credit = AMOUNT_MSAT(100);
 	ev1->debit = AMOUNT_MSAT(102);
 	ev1->output_value = AMOUNT_MSAT(104);
-	ev1->currency = "btc";
 	ev1->timestamp = 1919191;
 	ev1->blockheight = 1919191;
 	ev1->stealable  = false;
@@ -1103,7 +1092,6 @@ static bool test_chain_event_crud(const tal_t *ctx, struct plugin *p)
 	ev2->credit = AMOUNT_MSAT(200);
 	ev2->debit = AMOUNT_MSAT(202);
 	ev2->output_value = AMOUNT_MSAT(104);
-	ev2->currency = "btc";
 	ev2->timestamp = 1919191;
 	ev2->blockheight = 1919191;
 	ev2->stealable = false;
@@ -1122,7 +1110,6 @@ static bool test_chain_event_crud(const tal_t *ctx, struct plugin *p)
 	ev3->credit = AMOUNT_MSAT(300);
 	ev3->debit = AMOUNT_MSAT(302);
 	ev3->output_value = AMOUNT_MSAT(304);
-	ev3->currency = "btc";
 	ev3->timestamp = 3939393;
 	ev3->blockheight = 3939393;
 	ev3->stealable = false;
@@ -1186,7 +1173,6 @@ static bool test_chain_event_crud(const tal_t *ctx, struct plugin *p)
 }
 
 struct acct_balance {
-	char *currency;
 	struct amount_msat credit;
 	struct amount_msat debit;
 	struct amount_msat balance;
@@ -1328,7 +1314,6 @@ static bool test_account_crud(const tal_t *ctx, struct plugin *p)
 	ev1->credit = AMOUNT_MSAT(100);
 	ev1->debit = AMOUNT_MSAT(102);
 	ev1->output_value = AMOUNT_MSAT(104);
-	ev1->currency = "btc";
 	ev1->timestamp = 1919191;
 	ev1->blockheight = 1919191;
 	ev1->stealable = false;