Assuming a 10-12 pound whole brisket and 1-1/2 hours of cooking time per pound as a guideline, calculate how long it will take to cook the brisket. For example, a 12 pound brisket will take approximately 18 hours to cook. Divide this time in half. The first time to turn the brisket is after 9 hours of cooking.
The blockchain is a distributed, public ledger that contains the history of every bitcoin transaction. Anyone can download a copy of the blockchain, and it can be inspected to trace the path of bitcoins from one bitcoin transaction to another. A Block refers to a set of Bitcoin transactions from a certain time period.
According to tech how-to site How To Do Things, you won't have any way to tell this is working (it does), but if you want to reassure yourself just call another phone number that has caller ID to double-check that your number, indeed, is blocked.