BIP-352: clarify silent payment address length - #2271
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| *** The 66-byte concatenation of the receiver's public keys, ''ser<sub>P</sub>(B<sub>scan</sub>) || ser<sub>P</sub>(B<sub>m</sub>)'' | ||
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| Note: [https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki BIP173] imposes a 90 character limit for Bech32 segwit addresses and limits versions to 0 through 16, whereas a silent payment address requires ''at least'' 117 characters<ref name="why_117_chars"> ''' Why do silent payment addresses need at least 117 characters?''' A silent payment address is a bech32m encoding comprised of the following parts: | ||
| Note: [https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki BIP173] imposes a 90 character limit for Bech32 segwit addresses and limits versions to 0 through 16, whereas a silent payment address requires ''at least'' 116 characters for mainnet (117 characters for testnets, since the "tsp" HRP is 3 characters)<ref name="why_117_chars"> ''' Why do silent payment addresses need at least 116 (117 for testnets) characters?''' A silent payment address is a bech32m encoding comprised of the following parts: |
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nit: the ref name can be changed too: why_116_chars
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the address length note only gave 117 chars as the number to check against, using a 3-char HRP as the example without saying mainnet uses "sp" (2 chars, 116 total).