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diff --git a/src/exchangedb/0002-auditors.sql b/src/exchangedb/0002-auditors.sql
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+--
+-- This file is part of TALER
+-- Copyright (C) 2014--2022 Taler Systems SA
+--
+-- TALER is free software; you can redistribute it and/or modify it under the
+-- terms of the GNU General Public License as published by the Free Software
+-- Foundation; either version 3, or (at your option) any later version.
+--
+-- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+-- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+-- A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License along with
+-- TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+--
+
+
+CREATE TABLE auditors
+  (auditor_uuid BIGINT GENERATED BY DEFAULT AS IDENTITY UNIQUE
+  ,auditor_pub BYTEA PRIMARY KEY CHECK (LENGTH(auditor_pub)=32)
+  ,auditor_name TEXT NOT NULL
+  ,auditor_url TEXT NOT NULL
+  ,is_active BOOLEAN NOT NULL
+  ,last_change INT8 NOT NULL
+  );
+COMMENT ON TABLE auditors
+  IS 'Table with auditors the exchange uses or has used in the past. Entries never expire as we need to remember the last_change column indefinitely.';
+COMMENT ON COLUMN auditors.auditor_pub
+  IS 'Public key of the auditor.';
+COMMENT ON COLUMN auditors.auditor_url
+  IS 'The base URL of the auditor.';
+COMMENT ON COLUMN auditors.is_active
+  IS 'true if we are currently supporting the use of this auditor.';
+COMMENT ON COLUMN auditors.last_change
+  IS 'Latest time when active status changed. Used to detect replays of old messages.';