When generating a monero address and one of the 8-byte blocks is less than 11 characters, it states I can pad it with the character 1. Do I always add 1 to the beginning of the block output or at the end?
if a particular block converts to <11 characters, the conversion pads it with "1"s (1 is 0 in Base58)
Monero base58 is not like Bitcoin base58, bytes are converted in 8-byte blocks. The last block can have less than 8 bytes, but at least 1 byte. Eight bytes converts to 11 or less Base58 characters; if a particular block converts to <11 characters, the conversion pads it with "1"s (1 is 0 in Base58). Likewise, the final block can convert to 11 or less Base58 digits.
Due to the conditional padding, the 69-byte string, like Monero addresses, will always convert to 95 Base58 characters (8 * 11 + 7); where 7 is length of the last block of 5 bytes.
The alphabet is composed of 58 characters visually not similar to avoid confusion, e.g. both 1 and l are not part of the alphabet together, only 1 is present. The full alphabet is composed of: 123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz
Address: 43pQ9h9F7KBFgDpFB1aa9ZAvqbxXa7zixfuFAUoybXzbnsy89jVH4YUG8Wwn1BzSFir8WGMkxHpq91XVNhcaaF27UsGFQw
[18, 57, 233, 247, 246, 39, 189, 38] -- Generates: 43pQ9h9F7KB
[87, 190, 79, 202, 198, 114, 137, 252] -- Generates: FgDpFB1aa9Z
[59, 91, 105, 62, 142, 212, 126, 5] -- Generates: AvqbxXa7zix
[4, 2, 134, 215, 55, 25, 186, 141] -- Generates: fuFAUoybXz (only 10 characters)
[208, 0, 122, 244, 178, 147, 68, 205] -- Generates: bnsy89jVH4Y
[162, 251, 100, 144, 167, 8, 96, 108] -- Generates: UG8Wwn1BzSF
[250, 47, 237, 93, 107, 240, 113, 30] -- Generates: ir8WGMkxHpq
[47, 226, 16, 79, 77, 51, 197, 105] -- Generates: 91XVNhcaaF2
