Perform SHA-256 on the first 2 characters "12" and Perform RMD-160 on the hash 256 then convert to address, you will see the same address, coincidence? Definitely.
Most probably this is not a coincidence or a collision for that matter. Considering the addresses you shared were never spent from they could be categorized as addresses that were created from the hash like some sort of silly puzzle not from a public key. In other words nobody can spend these coins because they don't have the key, they just did what you did (hashed 2 characters and then created that address).Something like this:
Code:
for (chars from 0x10 to 0x1f)
hash = compute(Base16.Decode(0x+chars))
address = encode(hash)
if (address[1..2] == chars)
print (address)
burn_coins_by_sending_to(address)
hash = compute(Base16.Decode(0x+chars))
address = encode(hash)
if (address[1..2] == chars)
print (address)
burn_coins_by_sending_to(address)
