Invalid bitcoin address

[ImHash]

1DJJoJ4sxwJdwExTsoDg­8qXL1FEozDGQEF

this is the bitcoin address.

I tried it on several other bitcoin platform but i still got the same report. But when i post my own wallet address, it is valid. So I told him to take a screen shot to see if there was any mistake but it was thesame.

Where did you obtain this address?  It does not appear valid.

http://lenschulwitz.com/base58
https://thomas.vanhoutte.be/tools/validate-bitcoin-address.php?address=1DJJoJ4sxwJdwExTsoDg%C2%AD8qXL1FEozDGQEF&submit=

I have one question: what kind of algorythm this programm has?
Program shows that this address - 1N2w2o2RkRiNQaKKKfdPUzhG6sWfU3qpLV is valid
But this address - 1N2w2o2RkRiNQaFFFfdPUzhG6sWfU3qpLV is invalid. Why so? I just replace "KKK" by "FFF". It must be a valid address too. 

That's funny now that you mentioned it, I used to see triple F in a client seed in a provably fair casino but every time I was moving between the characters with left/right arrows the triple F were skipped as if there was only one character, anyways back on topic, who added the hidden character in that address and why? your operating system doesn't randomly put extra and hidden lines in between something that you are copying.
How is that hidden? and what is the purpose of it?

[johhnyUA]

I have one question: what kind of algorythm this programm has?
Program shows that this address - 1N2w2o2RkRiNQaKKKfdPUzhG6sWfU3qpLV is valid
But this address - 1N2w2o2RkRiNQaFFFfdPUzhG6sWfU3qpLV is invalid. Why so? I just replace "KKK" by "FFF". It must be a valid address too.  

No. just because it is using the valid Base58check characters, does not necessarily mean that any given address using those characters is a valid bitcoin address.

This describes the algorithm for how addresses are created: https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses#How_to_create_Bitcoin_Address
This page will let you see address generation in action: http://gobittest.appspot.com/Address

Oh, thank you for your explanation. It's very useful for understanding

[viralz]

I tried sending Bitcoin payment to a blockchain address using a blockchain account but I keep receiving a message "invalid bitcoin address". What should i do? Its urgent!

I had it before,... could you check any space? lets say it was copied as 1xxxxxx (with a bar space),
I had it also before.

I checked your address from explorer
and it also confirm that your address can not be verified,... somehow I think it is cool
and I am so sorry that I coudnt help.

[27QVUTZj8rgZP1]

The problem is that there's a hidden character we cannot see, probably due to char encoding. But it gets copied and pasted anyway.

It is only seen when we analyze in binary:

Code:

              00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00000000: |  31 44 4A 4A 6F 4A 34 73 78 77 4A 64 77 45 78 54 | 1 D J J o J 4 s x w J d w E x T 
00000010: |  73 6F 44 67 C2 AD 38 71 58 4C 31 46 45 6F 7A 44 | s o D g . . 8 q X L 1 F E o z D 
00000020: |  47 51 45 46                                     | G Q E F

Works fine without it: https://blockchain.info/address/1DJJoJ4sxwJdwExTsoDg8qXL1FEozDGQEF