Block Metadata Exercise

Using the below example (from the last lesson), you will be writing your own metadata flakes.

Subject	Predicate	Object	Time	Operation
12345	Hair Color	Red	-9	true
12345	Birthday	1/30/85	-9	true
12345	Fav Nums	7	-10	true
12345	Full Name	Jane Doe	-10	true
12345	Fav Nums	28	-10	true
-9	sig	Signature of the original JSON command	-9	true
-9	tx	[{ Original JSON transaction }]	-9	true
-9	auth	3425 (auth id that issued this transaction)	-9	true
-10	sig	Signature of the original JSON command	-10	true
-10	tx	[{ Original JSON transaction }]	-10	true
-10	auth	3425 (auth id that issued this transaction)	-10	true
-11	number	2 (this is the block number)	-11	true
-11	hash	SHA-256 hash for block	-11	true
-11	prevHash	Previous block's hash	-11	true
-11	transactions	[ -9, -10 ] (reference to the transactions in this block)	-11	true
-11	instant	Instant (time) when this block was created	-11	true

Your challenge is to use the above example to complete block 3 by determing how to replace the variables in brackets (i.e [Subject 1]).

Subject	Predicate	Object	Time	Operation
12345	Hair Color	Red	-11	false
12345	Hair Color	Brown	-11	true
12345	Fav Nums	101	-11	true
[Subject 1]	sig	Signature of the original JSON command	[Subject 1]	true
[Subject 1]	tx	[{ Original JSON transaction }]	[Subject 1]	true
[Subject 1]	auth	3425 (auth id that issued this transaction)	[Subject 1]	true
[Subject 2]	number	[Object 1]	[Subject 2]	true
[Subject 2]	hash	SHA-256 hash for block	[Subject 2]	true
[Subject 2]	prevHash	Previous block's hash	[Subject 2]	true
[Subject 2]	transactions	[Object 2]	[Subject 2]	true
[Subject 2]	instant	Instant (time) when this block was created	[Subject 2]	true

Note: when you're issuing a transaction, these metadata flakes are automatically generated, but it's helpful to write them yourself to understand the concept.