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ss58 or substrate58 is an address encoding scheme that is commonly used in substrate-based chains. It is similar to Base58 encoding format, with some modifications. Under basic ss58 encoding format an address can be encoded as: 
base58encode ( concat ( <address-type>, <address>, <checksum> ) )

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Functions

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from_ss58()

from_ss58(varchar) → varbinary Converts an ss58-encoded string to the corresponding VARBINARY address. 
SELECT 
    from_ss58('1qnJN7FViy3HZaxZK9tGAA71zxHSBeUweirKqCaox4t8GT7')
-- results in VARBINARY 0x2534454d30f8a028e42654d6b535e0651d1d026ddf115cef59ae1dd71bae074e

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to_ss58()

to_ss58(varbinary, int) → varchar Encodes an address of a specific network type into its ss58 VARCHAR representation. For example:
  • Polkadot has address type 0
  • Kusama has address type 2
  • Generic Substrate has address type 42
SELECT 
    to_ss58('0x2534454d30f8a028e42654d6b535e0651d1d026ddf115cef59ae1dd71bae074e', 2)
-- results 'DR6pMC4GJiVbgPtNNuw1xgxJyEsYYuXKXq7ZCVBjfFrh3V5'