if this is an unexpected mistake in writing？

[LeeeLiu]

Hello, tancik I wonder if this is an unexpected mistake in writing？ "Accounting for error correcting, using only 50 total message bits would drastically reduce the number of possible encoded hyperlinks to under one billion"

The paper said that ”use 100 bits to hide 56 bits“, so if we use 50 bits, it can hide ” under one billion“ ？ really？

look forward to your reply. Many Thanks！

[tancik]

Lets say we use ~1/2 of the bits for error correction. If we start with 50 bits, then our message would be ~25 bits. 2^25 ~= 30 million which is < 1 billion.

[LeeeLiu]

Lets say we use ~1/2 of the bits for error correction. If we start with 50 bits, then our message would be ~25 bits. 2^25 ~= 30 million which is < 1 billion.

Oh, I get it. Thank you for your prompt reply！