Non interactive anti-exfil (airgap compatible)

The term "vector commitment" is used in a way that might lead to confusion, especially since it already has a distinct significance within the field of cryptography, as detailed in a document on cryptographic techniques. The current discussion seems to align more closely with Scheme 2 outlined in discussions found on the Linux Foundation's website. This particular scheme is notable for its application to ECDSA rather than Schnorr signatures, drawing upon an idea originally proposed by Greg Maxwell in 2014, which can be reviewed in a forum post on BitcoinTalk.