Parse ECDSA signatures and (BTC) compute the real sighash/msgHash from a transaction input to verify automatically.
Signature (hex) – optional if you provide txid+vin (it will be read from tx input)
msgHash (32-byte hex) – basic mode
PublicKey (02/03/04…) – basic mode
BTC TX Verify (Auto msgHash)
Provide txid and vin. The tool fetches tx hex + prevout data and computes BIP143/legacy sighash.
Supported: legacy P2PKH, segwit v0 P2WPKH & P2SH-P2WPKH.