Ok....Lets verbally go through the binary encoding of opentimestamps and shame nostr:npub1ej493cmun8y9h3082spg5uvt63jgtewneve526g7e2urca2afrxqm3ndrm for his lack of documentation instead. Riveting content for sure.
Discussion
What client are you using? Your note tags look borked and they show up weirdly in other clients. Looks like you're replying to the wrong event.