Bitcoin Optech Newsletter #20

This week’s newsletter contains a security notice about the C implementation of bech32 address decoding, an analysis of a temporary reduction in the number of segwit blocks, a link to an interesting discussion about future features for LN payments, and a few notable code changes in popular Bitcoin infrastructure projects.

TxTenna - Offline bitcoin transactions - Apps on Google Play

Through the goTenna Mesh network and standard SMS network, TxTenna enables off-grid broadcasts of signed Bitcoin transactions with Samourai Wallet without relying on cell service or wifi. • Decentralized Broadcasts — goTenna's people-powered Mesh network connects devices within range without cell service or an internet connection. • Enhanced Privacy — Multiple hops obscures the physical location of broadcasts and any digital identifiers of the sender • Improved Security — Air-gapped Bitcoin broadcasts are more secure than a hot wallet and more accessible than cold storage • Avoid Local Censorship — TxTenna sends Bitcoin transactions to distant gateways on an uncensored ISP Here’s how it works: 1) Open Samourai Wallet to create a bitcoin transaction, even if you're offline 2) Choose to broadcast the transaction with TxTenna when prompted 3) You can broadcast the transaction via SMS or via Mesh network. Important Notes: • When pairing and using a goTenna Mesh with TxTenna make sure GPS and Bluetooth are enabled on your device

In the Mesh – TxTenna: Transact By Other Means

Index of /bin/bitcoin-core-0.17.0/

bitcoin_institution_riga.pdf

Bitcoin as a novel economic institution What we have learned so far, and where we’re going. ...