Polkadot · Kusama address validator
Checked in this browser. The address is not sent to a server.
Waiting for an addressPaste an address above
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Parts of this address
The address is split into prefix, payload and checksum once it is pasted.
Details
Length 0 characters.
Watch out
Nothing specific to this format. The general rule below still holds.
What this does not proveA valid format only means the address is well-formed. It does not show who controls it or that it is the address the recipient gave. Compare the whole address with the source and send a small test amount first.
Format rules
- Starts with
- 1C–H5
- Length
- 47–48
- Encoding
- SS58 (Base58)
- Checksum
- 2 bytes BLAKE2b-512
- Typo check
- Full: format and checksum
- Memo / tag
- Not used
What is checked
- SS58: a network prefix, the 32-byte key and 2 checksum bytes from BLAKE2b-512, in Base58.
- Polkadot uses prefix 0 (addresses start with
1), Kusama prefix 2 (capitalC–H), generic Substrate 42 (5…). - The same key can be shown with any prefix; the checker converts.
Specification: SS58 address format
No public example address is given here: the specification prints none, and a private person's address is never used as an example.
FAQ
Why does my Polkadot address start with 5?
It is shown in the generic Substrate format (prefix 42). Exchanges usually want the Polkadot form starting with 1; the checker shows it.