An earlier and much better documented approach is TLSNotary [1] that roughly solves the same problem in supposedly the same way and doesn't involve any spurious

An earlier and much better documented approach is TLSNotary [1] that roughly solves the same problem in supposedly the same way and doesn't involve any spurious ledgers. It's still quite unwieldy and requires trust in a set of notaries. IIRC a few years ago there was only efficient support for some TLS 1.2 ciphers [2], and TLS 1.3 was either very inefficient or non-functional. [1] https://docs.tlsnotary.org/ https://docs.tlsnotary.org/ [2] https://github.com/tlsnotary/tlsn/tree/main/tlsn/tlsn-core/src/fixtures/testdata/key_exchange https://github.com/tlsnotary/tlsn/tree/main/tlsn/tlsn-core/s...