Bitcoin Data Availability

Each trading transaction includes the tokens from the trading wallet and the pool, a sequence number, and Uniswap data. Users can compare the balance change between transaction inputs and outputs with Uniswap data, and compare the Uniswap data with the EVM contract to verify the Bitcoin transaction. Below is the structure of each type of trading transaction:

1. Init Pool (Create a New Pool and Add Liquidity)

Inputs:

Input 0: Pool init UTXO
Remaining Inputs: UTXOs from the trading wallet to init the pool

Outputs:

Output 0: New pool init UTXO
Outputs 1-10: New pool liquidity UTXOs
Outputs 11 to m: radFiOP_12 outputs containing pool initialization data
Output m+1: Runestone OP_RETURN
Output m+2: Trading wallet’s rune change
Output m+3: Trading wallet’s Bitcoin change

Example:

Inputs:

Input 0: Pool init UTXO (from the previous pool init transaction)
Input 1: Trading wallet’s UTXOs containing Bitcoin funds to provide liquidity for the new pool and cover the transaction fee
Input 2: Trading wallet’s UTXO containing Rune tokens to provide liquidity for the new pool

Outputs:

Output 0: New pool init UTXO (for use in the next pool init transaction)
Outputs 1-5: New pool liquidity UTXOs containing the liquidity added for the new pool
Outputs 6-10: Additional pool liquidity UTXOs, but containing no liquidity due to the limit on the Runestone OP_RETURN script size
Outputs 11-12: Pool initialization data, combining two ScriptPubKey data that follow OP_12:
- Byte 0 (Flag): 1 (indicates providing liquidity)
- Bytes 1-4 (UpperTick, big endian int32): 887200
- Bytes 5-8 (LowerTick, big endian int32): -887200
- Remaining Bytes: Contain 11 uvarint128 values:
  - Amount0: 10000964745485757151
  - Amount1: 1000
  - InitPrice: 792243410400884224932
  - Token0Decimal: 18
  - Token1Decimal: 8
  - SequenceNumber: 57
  - Fee: 100 (1%)
  - Token0Id - Block: 885548
  - Token0Id - Tx: 319
  - Token1Id - Block: 0
  - Token1Id - Tx: 0
Output 13: Runestone OP_RETURN containing data for the liquidity token in the new UTXOs and Rune change for the trading wallet
Output 14: Trading wallet’s Rune change UTXO, containing any remaining Rune tokens
Output 15: Trading wallet’s Bitcoin change UTXO, containing any remaining Bitcoin

2. Add New Liquidity Position to an Existing Pool

Inputs:

n inputs (n <= 10): Pool liquidity UTXOs
Remaining inputs: Trading wallet’s UTXOs to add liquidity

Outputs:

n outputs: New pool liquidity UTXOs containing the added liquidity
Outputs n to m: radFi OP_12 outputs containing added liquidity data
Output m+1: Runestone OP_RETURN
Output m+2: Trading wallet’s rune change
Output m+3: Trading wallet’s Bitcoin change

Inputs:

Inputs 0-3: Pool liquidity UTXOs
Input 4: Trading wallet’s UTXOs containing Bitcoin funds to provide liquidity for the pool and cover the transaction fee
Input 5: Trading wallet’s UTXO containing Rune tokens to provide liquidity for the pool

Outputs:

Outputs 0-3: New pool liquidity UTXOs containing the liquidity added for the pool
Output 4: radFi OP_12 script containing add liquidity data:
- Byte 0 (Flag): 1 (Providing liquidity flag)
- Bytes 1-4 (UpperTick, big endian int32): 887200
- Bytes 5-8 (LowerTick, big endian int32): -887200
- Remaining bytes: Contain 11 uvarint128 values:
  - Amount0: 10000964745485757151
  - Amount1: 1000
  - InitPrice: 0
  - Token0Decimal: 18
  - Token1Decimal: 8
  - SequenceNumber: 58
  - Fee: 100 (1%)
  - Token0Id - Block: 885548
  - Token0Id - Tx: 319
  - Token1Id - Block: 0
  - Token1Id - Tx: 0
Output 5: Runestone OP_RETURN containing data for the liquidity token in the new UTXOs and Rune change for the trading wallet
Output 6: Trading wallet’s Rune change UTXO containing any remaining Rune tokens
Output 7: Trading wallet’s Bitcoin change UTXO containing any remaining Bitcoin

3. Swap in One Pool:

Inputs:

n inputs (n <= 10): Pool liquidity UTXOs
Remaining inputs: Trading wallet’s UTXOs to swap

Outputs:

n outputs: New pool liquidity UTXOs
Outputs n to m: radFi OP_12 outputs containing swap data
Output m+1: Runestone OP_RETURN
Output m+2: Trading wallet’s token swap output
Output m+3: Trading wallet’s rune change
Output m+4: Trading wallet’s Bitcoin change

Inputs:

Inputs 0-1: Pool liquidity UTXOs
Input 2: Trading wallet’s UTXOs containing Bitcoin funds to swap and cover the transaction fee

Outputs:

Outputs 0-1: New pool liquidity UTXOs
Output 2: radFi OP_12 script containing swap data:
- Byte 0 (Flag): 2 (Swap flag)
- Byte 1:
  - First bit (IsExactIn): true
  - Remaining 7 bits (PoolsCount, uint8): 1
- Remaining bytes: Contain 8 uvarint128 values:
  - AmountIn: 1000
  - AmountOut: 7444327141368519190
  - SequenceNumber: 66
  - Fee: 100 (1%)
  - Input TokenId - Block: 0
  - Input TokenId - Tx: 0
  - Output TokenId - Block: 885548
  - Output TokenId - Tx: 319
Output 3: Runestone OP_RETURN containing data for the liquidity in the new UTXOs and Rune output for the trading wallet
Output 4: Trading wallet’s swap output UTXO
Output 5: Trading wallet’s Rune change UTXO (contains no Rune in this example due to no trading wallet’s Rune input)
Output 6: Trading wallet’s Bitcoin change UTXO containing the remaining Bitcoin for the user

Inputs:

Inputs 0-3: Pool liquidity UTXOs
Input 4: Trading wallet’s UTXOs containing Bitcoin funds to cover the transaction fee
Inputs 5-6: Trading wallet’s UTXOs containing Rune funds to swap

Outputs:

Outputs 0-3: New pool liquidity UTXOs
Output 4: radFi OP_12 script containing swap data:
- Byte 0 (Flag): 2 (Swap flag)
- Byte 1:
  - First bit (IsExactIn): true
  - Remaining 7 bits (PoolsCount, uint8): 1
- Remaining bytes: Contain 8 uvarint128 values:
  - AmountIn: 11000000000000000000
  - AmountOut: 1299
  - SequenceNumber: 69
  - Fee: 100 (1%)
  - Input TokenId - Block: 885548
  - Input TokenId - Tx: 319
  - Output TokenId - Block: 0
  - Output TokenId - Tx: 0
Output 5: Runestone OP_RETURN containing data for the liquidity in the new UTXOs and Rune change for the trading wallet
Output 6: Trading wallet’s swap output UTXO
Output 7: Trading wallet’s Rune change UTXO
Output 8: Trading wallet’s Bitcoin change UTXO containing the remaining Bitcoin for the user

4. Withdraw Liquidity From a Pool

Inputs:

n inputs (n <= 10): Pool liquidity UTXOs
Remaining inputs: Trading wallet’s Bitcoin UTXOs to pay the transaction fee

Outputs:

n outputs: New pool liquidity UTXOs
Outputs n to m: radFi OP_12 outputs containing withdraw liquidity data
Output m+1: Runestone OP_RETURN
Output m+2: Trading wallet’s withdrawn Rune liquidity
Output m+3: Trading wallet’s withdrawn Bitcoin liquidity and Bitcoin change

Inputs:

Inputs 0-3: Pool liquidity UTXOs
Input 4: Trading wallet’s UTXOs containing Bitcoin funds to cover the transaction fee

Outputs:

Outputs 0-3: New pool liquidity UTXOs
Output 4: radFi OP_12 script containing withdraw liquidity data:
- Byte 0 (Flag): 3 (Withdraw liquidity flag)
- Remaining bytes: Contain 10 uvarint128 values:
  - LiquidityValue: 100004823610
  - NftId: 8
  - Amount0: 9621866398363189269
  - Amount1: 1039
  - SequenceNumber: 94
  - Fee: 100 (1%)
  - Token0Id - Block: 885548
  - Token0Id - Tx: 319
  - Token1Id - Block: 0
  - Token1Id - Tx: 0
Output 5: Runestone OP_RETURN containing data for the liquidity in the new UTXOs and withdrawn Rune for the trading wallet
Output 6: Trading wallet’s Rune change UTXO
Output 7: Trading wallet’s withdrawn Bitcoin liquidity and Bitcoin change UTXO

5. Collect Fees From a Pool

Inputs:

n inputs (n <= 10): Pool liquidity UTXOs
Remaining inputs: Trading wallet’s Bitcoin UTXOs to pay the transaction fee

Outputs:

n outputs: New pool liquidity UTXOs
Outputs n to m: radFi OP_12 outputs containing collect fees data
Output m+1: Runestone OP_RETURN
Output m+2: Trading wallet’s collected Rune fees
Output m+3: Trading wallet’s collected Bitcoin fees and Bitcoin change

Inputs:

Input 0: Pool liquidity UTXO
Input 1: Trading wallet’s UTXOs containing Bitcoin funds to cover the transaction fee

Outputs:

Output 0: New pool liquidity UTXO
Output 1: radFi OP_12 script containing collect fees data:
- Byte 0 (Flag): 4 (Collect fees flag)
- Remaining bytes: Contain 9 uvarint128 values:
  - NftId: 8
  - Amount0: 52894105064729815
  - Amount1: 6
  - SequenceNumber: 93
  - Fee: 100 (1%)
  - Token0Id - Block: 885548
  - Token0Id - Tx: 319
  - Token1Id - Block: 0
  - Token1Id - Tx: 0
Output 2: Runestone OP_RETURN containing data of liquidity in the new UTXOs and collected Rune fees for the trading wallet
Output 3: Trading wallet’s collected Rune fees UTXO
Output 4: Trading wallet’s collected Bitcoin fees and Bitcoin change UTXO

6. Increase Liquidity of a Position in a Pool

Inputs:

n inputs (n <= 10): Pool liquidity UTXOs
Remaining inputs: Trading wallet’s UTXOs to increase liquidity

Outputs:

n outputs: New pool liquidity UTXOs
Outputs n to m: radFi OP_12 outputs containing increase liquidity data
Output m+1: Runestone OP_RETURN
Output m+2: Trading wallet’s Rune change
Output m+3: Trading wallet’s Bitcoin change

Inputs:

Inputs 0-3: Pool liquidity UTXOs
Inputs 4-5: Trading wallet’s UTXOs containing Bitcoin funds to increase liquidity for the pool’s position and cover the transaction fee
Input 6: Trading wallet’s UTXO containing Rune token to increase liquidity for the pool’s position

Outputs:

Outputs 0-3: New pool liquidity UTXOs
Output 4: radFi OP_12 script containing increase liquidity data:
- Byte 0 (Flag): 5 (Increase liquidity flag)
- Remaining bytes: Contain 11 uvarint128 values:
  - Min0: 0
  - Min1: 0
  - NftId: 14
  - Amount0: 10000964745485757151
  - Amount1: 1000
  - SequenceNumber: 64
  - Fee: 5 (0.05%)
  - Token0Id - Block: 885548
  - Token0Id - Tx: 319
  - Token1Id - Block: 0
  - Token1Id - Tx: 0
Output 5: Runestone OP_RETURN containing data of liquidity in the new UTXOs and Rune change for the trading wallet
Output 6: Trading wallet’s Rune change UTXO
Output 7: Trading wallet’s Bitcoin change UTXO

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Last updated 1 month ago