The database is in your hands. Can you get the $300 out of it?

I have tremendous respect for your abilities.

But I'd like to offer you a challenge.

Our App, ExtMemo AI Notes, is a note-taking app built around connected notes, AI search, and end-to-end encryption.

I'm providing all the records of a single user from my database — exactly what you might get if someone broke into my database.

Everything — including the user’s information, key-related data, note records, and more.

There's a $300 Amazon gift card hidden somewhere in these records. Can you find it?

Among those records, you'll find a note chain with two notes.

Note #1 (Unencrypted)

It says that a $300 Amazon gift card is stored here, so user can search or index it.

Note #2 (Encrypted)

That's where the actual Amazon Gift Card claim code is stored.

Can you recover the card number? If you can, the gift card is yours. First one to get it wins.

App Screenshot

App Screenshot

Database SQL Dump Preview

SQL 
--
-- PostgreSQL database dump
--

\restrict 2S38guCsFXT40ZiSS0Axx7LUKHL6FwxZV5y0mKZ1Vxdxp5WgshlhDAZ3KIB32dI

-- Dumped from database version 16.15 (Ubuntu 16.15-0ubuntu0.24.04.1)
-- Dumped by pg_dump version 16.15 (Ubuntu 16.15-0ubuntu0.24.04.1)

SET statement_timeout = 0;
SET lock_timeout = 0;
SET idle_in_transaction_session_timeout = 0;
SET client_encoding = 'UTF8';
SET standard_conforming_strings = on;
SELECT pg_catalog.set_config('search_path', '', false);
SET check_function_bodies = false;
SET xmloption = content;
SET client_min_messages = warning;
SET row_security = off;

--
-- Data for Name: dek; Type: TABLE DATA; Schema: public; Owner: -
--

INSERT INTO public.dek (id, encrypted_dek, created_at, updated_at, owner_id, type, backup_dek_id, share_dek_id, nonce, prevous_dek_id, note_id) VALUES ('19b427cc-794a-467b-ad38-bce66877aaba', '\x8265cdf0ac7272884548ee2782df4ddc072a2cea9a15a867a6f139e0774fbd371665dcffc7f7de16ebeaf87ffbf20c02d87e9d1964a2b04f62b85609c254253f', '2026-09-02 08:43:59.102694+00', '2026-09-02 08:43:59.102694+00', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', 'e2ee', '00000000-0000-0000-0000-000000000000', '00000000-0000-0000-0000-000000000000', '\x0524fb842090f646565532f8c2992feff4be7ae3b472867a2876788b', '00000000-0000-0000-0000-000000000000', '00000000-0000-0000-0000-000000000000');


--
-- Data for Name: e2ee; Type: TABLE DATA; Schema: public; Owner: -
--

INSERT INTO public.e2ee (id, pwd_based_key_part_b, created_at, updated_at, owner_id, salt) VALUES ('e845699a-5b32-4c61-a9e7-7d2a637c5bad', '\x3731363532366537323834383936396135626439313038666464303938636561', '2026-09-02 08:43:59.099948+00', '2026-09-02 08:43:59.099948+00', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', '\x6638646336353863303565323365643138313364396534363666613865343864');


--
-- Data for Name: notes; Type: TABLE DATA; Schema: public; Owner: -
--

INSERT INTO public.notes (id, owner_id, content, shared_user_ids, dek_id, head_note_id, created_at, updated_at, last_view_at, last_update_at, encrypt_nonce, chain_e2ee_enabled, is_unshared, embedding_type, status, metadata) VALUES ('ef4e771f-d1bc-45d5-b544-b3aff7d99657', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', '\x3e20f09f92ac202a2a466565646261636b20262053756767657374696f6e733a2a2a205265616368206f757420746f207573206174202a2a737570706f7274406578746d656d6f2e636f6d2a2a2e2057652764206c6f766520746f20686561722066726f6d20796f75210a', NULL, '00000000-0000-0000-0000-000000000000', '2e7be958-6b4c-4673-a5bc-190827ca1dc8', '2026-09-02 08:43:57.203224+00', '2026-09-02 08:43:57.203224+00', '0001-01-01 00:00:00+00', '0001-01-01 00:00:00+00', '\x', false, false, '', NULL, '{}');
INSERT INTO public.notes (id, owner_id, content, shared_user_ids, dek_id, head_note_id, created_at, updated_at, last_view_at, last_update_at, encrypt_nonce, chain_e2ee_enabled, is_unshared, embedding_type, status, metadata) VALUES ('9744b4b4-a692-4100-9910-2d46d74d3164', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', '\xa03260b8b9dc4b792f8f2c77e3664bb6779036e64e79c45d5a310142', NULL, '19b427cc-794a-467b-ad38-bce66877aaba', 'd95b88a7-f305-47d8-a3ad-f6351bb2dc73', '2026-09-02 08:54:26.529526+00', '2026-09-02 08:54:26.529526+00', '0001-01-01 00:00:00+00', '0001-01-01 00:00:00+00', '\x6b3387a7d2a6f24fef87dca8f4fcf49e5af58ceefd933e9c0cfec258', false, false, '', NULL, '{"content_format": "md"}');
INSERT INTO public.notes (id, owner_id, content, shared_user_ids, dek_id, head_note_id, created_at, updated_at, last_view_at, last_update_at, encrypt_nonce, chain_e2ee_enabled, is_unshared, embedding_type, status, metadata) VALUES ('2e7be958-6b4c-4673-a5bc-190827ca1dc8', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', '\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', NULL, '00000000-0000-0000-0000-000000000000', '00000000-0000-0000-0000-000000000000', '2026-09-02 08:43:57.196714+00', '2026-09-02 08:43:57.196714+00', '2026-09-02 08:43:57.240097+00', '2026-09-02 08:43:57.241694+00', '\x', false, false, 'BAAI/bge-m3', NULL, '{}');
INSERT INTO public.notes (id, owner_id, content, shared_user_ids, dek_id, head_note_id, created_at, updated_at, last_view_at, last_update_at, encrypt_nonce, chain_e2ee_enabled, is_unshared, embedding_type, status, metadata) VALUES ('4e33a26b-696b-4d1f-9c4f-c74379ccf834', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', '\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', NULL, '00000000-0000-0000-0000-000000000000', '2e7be958-6b4c-4673-a5bc-190827ca1dc8', '2026-09-02 08:43:57.232266+00', '2026-09-02 08:43:57.232266+00', '0001-01-01 00:00:00+00', '0001-01-01 00:00:00+00', '\x', false, false, '', NULL, '{}');
INSERT INTO public.notes (id, owner_id, content, shared_user_ids, dek_id, head_note_id, created_at, updated_at, last_view_at, last_update_at, encrypt_nonce, chain_e2ee_enabled, is_unshared, embedding_type, status, metadata) VALUES ('6a96921b-f6fc-49fe-acfa-161cda690907', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', '\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', NULL, '00000000-0000-0000-0000-000000000000', '2e7be958-6b4c-4673-a5bc-190827ca1dc8', '2026-09-02 08:43:57.21438+00', '2026-09-02 08:43:57.21438+00', '0001-01-01 00:00:00+00', '0001-01-01 00:00:00+00', '\x', false, false, '', NULL, '{}');
INSERT INTO public.notes (id, owner_id, content, shared_user_ids, dek_id, head_note_id, created_at, updated_at, last_view_at, last_update_at, encrypt_nonce, chain_e2ee_enabled, is_unshared, embedding_type, status, metadata) VALUES ('d95b88a7-f305-47d8-a3ad-f6351bb2dc73', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', '\x57656c636f6d652e200a54686520416d617a6f6e2067696674206361726420636c61696d20636f646520697320736f6d65776865726520696e207468697320636861696e2e200a54727920746f2066696e642069742e', NULL, '00000000-0000-0000-0000-000000000000', '00000000-0000-0000-0000-000000000000', '2026-09-02 08:48:02.857003+00', '2026-09-02 08:53:26.497085+00', '2026-09-02 12:27:39.890977+00', '2026-09-02 08:54:26.534965+00', '\x', false, false, 'BAAI/bge-m3', NULL, '{"content_format": "md"}');
INSERT INTO public.notes (id, owner_id, content, shared_user_ids, dek_id, head_note_id, created_at, updated_at, last_view_at, last_update_at, encrypt_nonce, chain_e2ee_enabled, is_unshared, embedding_type, status, metadata) VALUES ('b76d06b2-0371-454f-bfff-24e47706de1f', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', '\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', NULL, '00000000-0000-0000-0000-000000000000', '2e7be958-6b4c-4673-a5bc-190827ca1dc8', '2026-09-02 08:43:57.237985+00', '2026-09-02 08:43:57.237985+00', '0001-01-01 00:00:00+00', '0001-01-01 00:00:00+00', '\x', false, false, '', NULL, '{}');
INSERT INTO public.notes (id, owner_id, content, shared_user_ids, dek_id, head_note_id, created_at, updated_at, last_view_at, last_update_at, encrypt_nonce, chain_e2ee_enabled, is_unshared, embedding_type, status, metadata) VALUES ('43d50c53-6739-42c1-b9fd-f3150f9c7527', '4f1fb79b-9154-4914-98e5-f6b24b9ebf06', '\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', NULL, '00000000-0000-0000-0000-000000000000', '2e7be958-6b4c-4673-a5bc-190827ca1dc8', '2026-09-02 08:43:57.225318+00', '2026-09-02 08:43:57.225318+00', '0001-01-01 00:00:00+00', '0001-01-01 00:00:00+00', '\x', false, false, '', NULL, '{}');


--
-- Data for Name: users; Type: TABLE DATA; Schema: public; Owner: -
--

INSERT INTO public.users (id, email, phone, name, password, created_at, updated_at, settings, public_key, app_version, plan, subscription_expires_at, apple_id, apple_refresh_token) VALUES ('4f1fb79b-9154-4914-98e5-f6b24b9ebf06', 'amazon.card@extmemo.com', '', 'Amazon Card', '$2a$10$gfJceM.0YIgpty.br1onSeYYo2TWxcUHU3rrU28W5k2wTwRrRY.sa', '2026-09-02 08:43:57.190239+00', '2026-09-03 03:11:02.812997+00', '{"language": "en", "does_hide_e2ee": false, "last_todo_check": "2026-09-03", "e2ee_policy_type": "no_e2ee", "last_view_recent_at": "2026-09-02T08:54:38.335Z"}', '041d81343d1e1dfff6cf78f1e42241f4046911909941f4a9c098f7833886dbcb347e3f021f90d5e2e9f24160ee238a8d07cb740de7913752373e58de923f494577', '2.3.20', 'free', '0001-01-01 00:00:00+00', NULL, '');


--
-- PostgreSQL database dump complete
--

\unrestrict 2S38guCsFXT40ZiSS0Axx7LUKHL6FwxZV5y0mKZ1Vxdxp5WgshlhDAZ3KIB32dI

Good luck. 🔐

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