1 files changed, 9 insertions, 4 deletions

diff --git a/TODO.md b/TODO.md
index a4efbcc..6323bab 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,14 +1,16 @@
 # TODO
 
+## Simulation
+- [ ] Blocks should "play out" the transactions and execute transactions
+- [ ] "Coinbase" ("by" of the first transaction of the block) should get rewarded for their efforts
+- [ ] Transactions should be rejected if the user cannot afford to send the amount
+
 ## Authentication
 - [ ] /register is currently accepting non-encrypted (regular JSON) payloads
 - [ ] /register should check for public key pem format and assign signatures
 
 ## Authorization
-- [x] POST requests to /block should be authenticated as well (2021-04-13 04:50, they now are but until we make error messages **Verbose** there's not much point in testing because I honestly cannot trace the code)
-
-## Verbosity
-- [ ] Verbose error messages (use error.rs from [logrocket](https://blog.logrocket.com/create-an-async-crud-web-service-in-rust-with-warp/) ❓)
+- [.] POST requests to /block should be authenticated as well (2021-04-13 04:50, they now are but until we make error messages **Verbose** there's not much point in testing because I honestly cannot trace the code)
 
 ## Tests
 - [ ] Schema Tests
@@ -25,7 +27,10 @@
 - [x] Switch to RwLock (parking_lot) (done at 2021-04-07 03:43, two possible schemes to represent inner Db (ledger) in code)
 - [x] We need our own representation of students and their grades, "there is no blockchain" (done at 2021-04-12 00:05)
 - [x] pick a block proposal scheme (= pick hash function) [list of hash functions](https://en.bitcoinwiki.org/wiki/List_of_hash_functions) (done at 2021-04-12 05:30)
+----
 - [x] check the nonce for incoming blocks (done at 2021-04-12 05:30)
 - [X] pick a user authentication scheme = [JWT](https://tools.ietf.org/html/rfc7519) Seems perfect
 - [X] implement JWT
 - [X] users should be able to _sign_ their transactions
+----
+- [x] Verbose error messages (use error.rs from [logrocket](https://blog.logrocket.com/create-an-async-crud-web-service-in-rust-with-warp/) ❓) (done at 2021-04-13 20:39, not happy with the result)