OPERATION TESTNET RESOLVE comms should be limited nostr but please develop your own communications PACE plan for nostr. Signed JSON can be shipped via USB. A strong network of keys can provide crytographic assurances with a hand written letter.

nostr:nevent1qqsqhyvy6xcpysfhwjrst5ztn2w89fyhg8fn78eghsxykvtcsnlz6nspr9mhxue69uhhqun9d45h2mfwwpexjmtpdshxuet59upzp57hgyjdm76mm3sm3uvdzlpnxkamf7x8zxp2xhhzwv22fxjwk7caqvzqqqqqqytfvtep