#btc1 and btc2 combined
alias btcgrep="grep -Ee '\b[13][a-km-zA-HJ-NP-Z1-9]{25,34}\b' -e '\bbc(0([ac-hj-np-z02-9]{39}|[ac-hj-np-z02-9]{59})|1[ac-hj-np-z02-9]{8,87})\b'"

#legacy addresses only
alias btcgrep1="grep -E '\b[13][a-km-zA-HJ-NP-Z1-9]{25,34}\b'"
#http://mokagio.github.io/tech-journal/2014/11/21/regex-bitcoin.html

#bech32 v1 and v0 addresses
alias btcgrep2="grep -E '\bbc(0([ac-hj-np-z02-9]{39}|[ac-hj-np-z02-9]{59})|1[ac-hj-np-z02-9]{8,87})\b'"
#https://stackoverflow.com/questions/21683680/regex-to-match-bitcoin-addresses

#bech32 addresses only
alias btcgrep3="grep -E '\bbc1[ac-hj-np-zAC-HJ-NP-Z02-9]{11,71}\b'"

#both legacy and bech32
alias btcgrep4="grep -E '\b([13][a-km-zA-HJ-NP-Z1-9]{25,34}|bc1[ac-hj-np-zAC-HJ-NP-Z02-9]{11,71})\b'"
#http://mokagio.github.io/tech-journal/2014/11/21/regex-bitcoin.html

#private keys
alias btcgrep5="grep -E '\b[5KL][1-9A-HJ-NP-Za-km-z]{50,51}\b'"
#word boundary: '\b'
#https://bitcoin.stackexchange.com/questions/56737/how-can-i-find-a-bitcoin-private-key-that-i-saved-in-a-text-file

#transaction hashes
alias btcgrep6="grep -E '\b[a-fA-F0-9]{64}\b'"
#https://stackoverflow.com/questions/46255833/bitcoin-block-and-transaction-regex
#https://bitcoin.stackexchange.com/questions/70261/recognize-bitcoin-address-from-block-hash-and-transaction-hash

#block hashes
alias btcgrep7="grep -E '\b[0]{8}[a-fA-F0-9]{56}\b'"
#https://stackoverflow.com/questions/46255833/bitcoin-block-and-transaction-regex

#ethereum address hash
#test for 'plausibility'
alias ethgrep="grep -E '\b(0x)?[0-9a-fA-F]{40}\b'"
#https://ethereum.stackexchange.com/questions/1374/how-can-i-check-if-an-ethereum-address-is-valid

#ethereum transaction hash
alias ethgrep2="grep -E '\b(0x)?([A-Fa-f0-9]{64})\b'"  #parentheses are not necessary
#https://ethereum.stackexchange.com/questions/34285/what-is-the-regex-to-validate-an-ethereum-transaction-hash/34286