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OmniBOLT-01-basic-protocol-and-Terminology.md

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OmniBOLT #1: Basic Protocol and Terminology

Terminology

  • OBD: OmniBOLT Daemon.
  • channel: A channel refers to Poon-Dryja channel in the lightning network. Channel is denoted by [Alice, USDT, Bob], which means Alice and Bob build a channel and fund it by USDT.
  • asset id: Each asset has an id(unsigned 32-bit integer) that is published by Omnilayer on the mainnet. In most protocol messages, if asset_id = 0, then OmniBOLT processes bitcoin transactions, and is compatible with the current bitcoin-only lightning network. Other assets, for example, OMNI has asset id 1, USDT has asset id 31 on the mainnet.
  • [A, token symbol, B]: stands for the channel built by A and B, funded by token token symbol, for example, omni,usdt.
  • [A --(10 USDT)--> B]: A pays 10 usdt to B in channel [A, USDT, B].
  • property: refers to tokens issued on Omnilayer, the same as "asset".
  • RSMC: Revocable Sequence Maturity Contract is composed to punish malicious peers, who broadcast elder commitment transactions to get more refund than what's exactly in his balance.
  • HTLC: Hashed Time-Lock Contract chains multiple channels for transferring tokens from one peer to another, between whom there is no direct channel established.
  • Commitment Transaction: is created but not broadcast, and will be invalidated by the next commitment transaction.
  • BR: Breach Remedy transaction is used in RSMC, that if Alice cheats by broadcasting an elder commitment transaction, BR will send all her money to Bob.
  • RD: Revocable Delivery transaction pays out from the 2-2 P2SH transaction output, when Alice broadcast the latest legitimate commitment transaction. It sends money to Bob immediately and will send money to Alice after relatively, say 100 blocks, from the current block height.
  • HED: HTLC Execution Delivery
  • HT: HTLC Timeout
  • HBR: HTLC Breach Remedy, the breach remedy transaction in HTLC
  • HTRD: HTLC Timeout Revocable Delivery, the revocable delivery transaction in HTLC
  • HTBR: HTLC Timeout Breach Remedy, punishes Alice who broadcasts the elder hash time-locked transaction during the time lock period.
  • Atomic Swap: Atomic swap technology enables the exchange of one cryptocurrency for another without using centralized intermediaries, such as exchanges.
  • HTLSC: Hashed TimeLock Swap Contract, which consists of two separate HTLCs with an extra specified exchange rate of tokens and time lockers.

Data types

byte_array: an array of bytes, the first 2 bytes indicate the length of the array. the maximum length is 65535
32*byte: a fixed-length version of byte_array, where the decimal value of the first 2 bytes is 32.
64*byte: a fixed-length version of byte_array, where the decimal value of the first 2 bytes is 64.
float64: 8 bytes represent a float number, 8 decimal is allowed and can be recognized