“Where there is preparation there is no fear.” ~ Hwang Kee (1914 – 2002, Soo Bahk Do, Tang Soo Do Moo Duk Kwan) 황기 (당수도, 무덕관)
Some digging based on the information provided by @Liberty Farmer and @Majere --
1. Digirig
2. Armoloq for digirig https://www.armoloq.com/ddm-dgrg
A protocol for offline bitcoin over radio (captured via internet archive):
Concept for broadcasting bitcoin over television:
Bitcointalk thread / discussion:
Additional / further thought stream / notes -
3. Decentralized identity system:
4. Bitcoin over radio and television, and notes on overcoming censorship from Bisq issue discussion:
5. Old notes from the Ricardian contracts (for distributed currency exchange) as implemented in original OpenBazaar
for insurance contracts,
for peer to peer lending,
for physical goods, example
and dispute resolution: 
digirig – ham radio equipment
A Protocol for Offline Bitcoin Over Radio Transactions | Better Off Bitcoin

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