Durable nonces for reliable transactions

[mocolicious]

blockheight that goes into each transaction expires after every 2 minutes. Nonce accounts are used to create a hash that is unique to that transaction and will provide for reliable failure and retry capabilities. The nonce is unique to the transaction, whereas the current retries are prone to failure and duplicate transactions.

[mocolicious]

Phase 1 - Reliable transactions using nonces

• implement e2e tests
• implement ability to use durable nonces for transactions
  • optional nonce accounts
  • Nonce authority to fee payer wallet
  • Advancing of nonce account by Kinetic at regular intervals
• update documentation

Phase 2 - Offline sending

• Offline sending
  • Reliable sending P2P offline
  • safeguards for reliable failure
• implement e2e tests
• test failure scenarios
• update documentation