Is there an existing issue for this?
- I have searched the existing issues
Current behaviour
NOTE: Replace bch.sh below in the code with bitcoin-cli -signet.
Let’s have a random new testnet descriptor wallet with following private descriptors:
0~/.bitcoin/signet$ bch.sh listdescriptors true | jq .descriptors[].desc | tail -1
1"wpkh(tprv8ZgxMBicQKsPdpPsVvhB5XZtRfRWGqH1uwJNmG27dQgDwTS76oCd3hKbn3zERUZjG2fCgdKe8rqT2NomNbCgGSUQ829rJkTLUWvGKzyHX7Z/84h/1h/0h/1/*)#duvgfk6y"
I will use just the one on the last line.
When the prvate descriptor above is used with getdescriptorinfo RPC call I get following:
0~/.bitcoin/signet$ bch.sh getdescriptorinfo "wpkh(tprv8ZgxMBicQKsPdpPsVvhB5XZtRfRWGqH1uwJNmG27dQgDwTS76oCd3hKbn3zERUZjG2fCgdKe8rqT2NomNbCgGSUQ829rJkTLUWvGKzyHX7Z/84h/1h/0h/1/*)#duvgfk6y"
1{
2 "descriptor": "wpkh(tpubD6NzVbkrYhZ4XHRfPaMmUwDzzgwSSATvVEuA3n4R3gUcmwgsjC2DEBwTxB4qBjSBoofF3xKGAsQE3GhBDSFi6b8PcDwXLdEoNxrovTFmyYt/84h/1h/0h/1/*)#9zp9fyaf",
3 "checksum": "duvgfk6y",
4 "isrange": true,
5 "issolvable": true,
6 "hasprivatekeys": true
7}
When the just-returned descriptor is used in deriveaddress it ends with an error:
0~/.bitcoin/signet$ bch.sh deriveaddresses "wpkh(tpubD6NzVbkrYhZ4XHRfPaMmUwDzzgwSSATvVEuA3n4R3gUcmwgsjC2DEBwTxB4qBjSBoofF3xKGAsQE3GhBDSFi6b8PcDwXLdEoNxrovTFmyYt/84h/1h/0h/1/*)#9zp9fyaf" '[0,1]'
1error code: -5
2error message:
3Cannot derive script without private keys
If the wallet is queried by listdescriptors, just public, I get this for the same derivation path:
0~/.bitcoin/signet$ bch.sh listdescriptors | jq .descriptors[].desc | tail -1
1"wpkh([823c2027/84h/1h/0h]tpubDDPGZQssk8ekvcN85aXhvz5omhZdQPWcczP21RqCHw7i5ce89zgYHoxowE8HrUUi2XUr4Vv4x48Ykhw7JBCH6G8QUfgRRR9UPgbC74DdNC4/1/*)#spvfr65h"
When I use the above just-returned public descriptor it derives addresses well:
0~/.bitcoin/signet$ bch.sh deriveaddresses "wpkh([823c2027/84h/1h/0h]tpubDDPGZQssk8ekvcN85aXhvz5omhZdQPWcczP21RqCHw7i5ce89zgYHoxowE8HrUUi2XUr4Vv4x48Ykhw7JBCH6G8QUfgRRR9UPgbC74DdNC4/1/*)#spvfr65h" '[0,1]'
1[
2 "tb1qegtflj2zzv6wqwh0zgh7zeztv2ek6awsvz4fpk",
3 "tb1qslc5s8gd5zd7fa3cj64zt7kmlnw348x6q6cg28"
4]
Expected behaviour
I would expect also the getdescriptorinfo for the private descriptor to return a valid public descriptor usable for deriving addresses.
Steps to reproduce
0myderive() {
1 bitcoin-cli -signet getdescriptorinfo "$1" | jq -r .descriptor | while read a; do bitcoin-cli -signet deriveaddresses "$a" '[0,1]'; done
2}
3
4myderive "wpkh(tprv8ZgxMBicQKsPdpPsVvhB5XZtRfRWGqH1uwJNmG27dQgDwTS76oCd3hKbn3zERUZjG2fCgdKe8rqT2NomNbCgGSUQ829rJkTLUWvGKzyHX7Z/84h/1h/0h/1/*)#duvgfk6y"
5# above fails
6
7myderive "wpkh([823c2027/84h/1h/0h]tpubDDPGZQssk8ekvcN85aXhvz5omhZdQPWcczP21RqCHw7i5ce89zgYHoxowE8HrUUi2XUr4Vv4x48Ykhw7JBCH6G8QUfgRRR9UPgbC74DdNC4/1/*)#spvfr65h"
Former errs, the latter works. Both are returned from listdescriptors, but former is the private from listdescriptors true.
Relevant log output
No response
How did you obtain Bitcoin Core
Pre-built binaries
What version of Bitcoin Core are you using?
v26.0.0
Operating system and version
Pop!_OS 22.04 LTS (like Ubuntu, just uses zram)
Machine specifications
x86_64 SSD big enough for Signet (proper, non-custom)
