Base32Encoder new decode: 'HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ'. 

"#[61 198 202 164 130 74 109 40 135 103 178 51 30 32 180 49 102 203 133 217]"

1478167454 // 30.

"49272248"

49272248 asByteArrayOfSize: 8. 

"#[0 0 0 0 2 239 213 184]"

(HMAC on: SHA1)
  key: #[61 198 202 164 130 74 109 40 135 103 178 51 30 32 180 49 102 203 133 217];
  digestMessage: #[0 0 0 0 2 239 213 184]. 

"#[127 67 212 219 236 88 54 168 158 177 36 112 177 244 112 88 224 169 130 215]"

ZTimestamp fromUnixTime: 1478167454. 

"2016-11-03T10:04:14Z"

(DateAndTime fromUnixTime: 1478167454) asUTC.

"2016-11-03T10:04:14+00:00"

#[127 67 212 219 236 88 54 168 158 177 36 112 177 244 112 88 224 169 130 215] last bitAnd: 16rF.
 
"7"

#[127 67 212 219 236 88 54 168 158 177 36 112 177 244 112 88 224 169 130 215] copyFrom: 8 to: 11. 

"#[168 158 177 36]"

#[168 158 177 36] asInteger bitAt: 32 put: 0. 

"681488676"

681488676 \\ 1e6.

"488676"