Index: nano.man
==================================================================
--- nano.man
+++ nano.man
@@ -307,10 +307,35 @@
 units for representing the balance, the smallest and base unit is called
 .RI \(dq raw \(dq.
 The most common unit for users to use is called
 .RI \(dq Nano \(dq,
 one of which is equal to 1e30 raw.
+
+.SS Addresses
+Nano addresses are composed of a prefix (either
+.RB \(dq nano_ \(dq
+or
+.RB \(dq xrb_ \(dq)
+and 300 bits of base32 encoded data.  The 300-bits of base32 encoded data
+produce a string that is 6 charectars long using the base32 alphabet
+.BR 13456789abcdefghijkmnopqrstuwxyz .
+The format of these 300 bits are
+.EX
+
+  [Padding (4 bits: 0)].[Public Key (256 bits)].[Checksum (40 bits)]
+
+.EE
+For example the public key
+.B DC1512154EB72112B8CC230D7B8C7DD467DA78E4763182D6CAFAADB14855A5E8
+would be encoded as
+.B 0000.DC1512154EB72112B8CC230D7B8C7DD467DA78E4763182D6CAFAADB14855A5E8.9C46A37418
+which when encoded in base32 and the prefix added produces the address
+.BR nano_3q1o4acnxfs34cwerarfhg89uo59ubwgaxjjiddeoyofp767dbhamj5c8x1r .
+The checksum is computed as a 5 byte (40 bit) Blake2b hash of the 256-bit
+public key (in binary format), followed by reversing the bytes.
+
+
 
 .SH PROCEDURES
 .SS Addresses
 .TP
 .B ::nano::address::toPublicKey