> ## Documentation Index
> Fetch the complete documentation index at: https://docs.allium.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Bridges Outbound Transfers

### Table Details

| Property | Value |
| - | - |
| Table Name | `solana.bridges.bridges_outbound_transfers` |
| Table Status | Production-Ready |
| Unique Key | `block_timestamp::date`, `unique_id` |
| Clustering Key(s) | `block_timestamp::date` |

### Table Columns

| Column Name | Data Type | Description |
| - | - | - |
| project | VARCHAR(16777216) | Business name of the protocol being used (e.g. `uniswap`, `aave`, `lido`, `paraswap`). Consistent across verticals — every table with a `project` column uses this field to identify the top-level protocol brand. |
| protocol | VARCHAR(16777216) | Specific version or variant of the protocol (e.g. `uniswap_v3`, `aave_v2`, `stargate_v2`). Qualifies the `project` field with version information. |
| messaging\_protocol | VARCHAR(16777216) | Name of the cross-chain messaging layer used for this transfer (e.g. `layerzero`, `wormhole`, `hyperlane`, `ccip`). Populated when the bridge uses a dedicated messaging protocol layer distinct from the bridge itself. |
| program\_id | VARCHAR(16777216) | Base58-encoded public key of the Solana program that processed this instruction (e.g. `TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA` for SPL Token). |
| instruction\_name | VARCHAR(16777216) | Human-readable name of a decoded program instruction (e.g. `swap`, `deposit`, `transfer`). Used in Solana decoded instruction tables. |
| direction | VARCHAR(16777216) | Direction of this transfer relative to the chain where the event occurred. `outbound` = tokens leaving the chain; `inbound` = tokens arriving on the chain. |
| source\_chain | VARCHAR(16777216) | Slug of the chain where the tokens originated. |
| destination\_chain | VARCHAR(16777216) | Slug of the chain where the tokens are being sent. |
| sender\_address | VARCHAR(16777216) | Address that initiated the bridge transfer on the source chain. |
| recipient\_address | VARCHAR(16777216) | Address that will receive the tokens on the destination chain. May be null if the destination address is not emitted in the source-chain event. |
| token\_address | VARCHAR(16777216) | Contract address of the token. For EVM chains, native currency (e.g. ETH, MATIC) is represented as the zero address (0x0000000000000000000000000000000000000000). For Solana, this is the mint address. |
| token\_name | VARCHAR(16777216) | Full name of the token (e.g. "USD Coin", "Wrapped Ether"). |
| token\_symbol | VARCHAR(16777216) | Ticker symbol of the token (e.g. "USDC", "WETH"). |
| token\_id | VARCHAR(16777216) | Identifier for non-fungible tokens (ERC-721) or semi-fungible tokens (ERC-1155). Each unique token\_id within a collection represents a distinct asset. |
| amount\_raw | VARCHAR(16777216) | Token amount expressed in the token's smallest indivisible unit (i.e. not divided by decimals). Use `amount` for the human-readable normalized value. |
| amount | VARCHAR(16777216) | Token amount normalized by the token's decimal precision (amount\_raw / 10^decimals). This is the human-readable value (e.g. 1.5 USDC rather than 1500000). |
| usd\_amount | FLOAT | USD value of the token amount at the time of the event, computed using the hourly USD exchange rate. |
| fee\_token\_address | VARCHAR(16777216) | Contract address of the token used to pay the bridge protocol fee. May differ from the bridged token (e.g. fees paid in the native gas token). |
| fee\_token\_name | VARCHAR(16777216) | Full name of the token used to pay the bridge fee. |
| fee\_token\_symbol | VARCHAR(16777216) | Ticker symbol of the token used to pay the bridge fee. |
| fee\_amount\_raw | VARCHAR(16777216) | Raw amount of the bridge fee in the fee token's smallest unit (not decimal-adjusted). |
| fee\_amount | VARCHAR(16777216) | Decimal-adjusted amount of the bridge fee. |
| fee\_usd\_amount | FLOAT | USD value of the bridge fee at the time of the transfer. |
| fee\_details | VARIANT | JSON object containing a breakdown of fee components (e.g. protocol fee, gas rebate, relayer fee). Structure varies by bridge protocol. |
| extra\_fields | VARIANT | Protocol-specific fields as a JSON object. Keys: transfer\_uuid (transfer identifier, uint128 as varchar, from the event). |
| txn\_id | VARCHAR(16777216) | Base58-encoded transaction signature on Solana. Analogous to `transaction_hash` on EVM chains. Uniquely identifies a transaction. |
| txn\_index | NUMBER(38,0) | Zero-based position of this transaction within its slot. |
| instruction\_index | NUMBER(38,0) | Zero-based position of this instruction within the transaction's top-level instructions array. |
| inner\_instruction\_index | NUMBER(38,0) | Zero-based position of this inner instruction within its parent instruction's inner instructions array. -1 for top-level instructions that are not inner instructions. |
| block\_timestamp | TIMESTAMP\_NTZ(9) | Timestamp (UTC) of the block that contains this record. |
| block\_slot | NUMBER(38,0) | Solana slot number in which this transaction was confirmed. Slots are the fundamental unit of time on Solana (analogous to block numbers on EVM chains). Not every slot produces a block. |
| block\_hash | VARCHAR(16777216) | Cryptographic hash of the block header that contains this record. Uniquely identifies a block. |
| unique\_id | VARCHAR(16777216) | Allium's deterministic unique identifier for this row. Generated from the fields that uniquely identify the record (e.g. transaction hash + log index). Stable across full refreshes. |
| \_created\_at | TIMESTAMP\_NTZ(9) | Timestamp of when the entry was created in the database. |
| \_updated\_at | TIMESTAMP\_NTZ(9) | Timestamp of when the entry was last updated in the database. |