> ## 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.

# Supply Change

### Table Details

| Property | Value |
| - | - |
| Table Name | `arc.rwa.supply_change` |
| Table Status | Production-Ready |
| Unique Key | `block_date`, `unique_id` |
| Clustering Key(s) | `block_date, token_address, transfer_type` |
| Search Optimization | `block_date`, `token_address`, `transfer_type` |

### Table Columns

| Column Name | Data Type | Description |
| - | - | - |
| chain | VARCHAR(16777216) | Name of the blockchain network this record belongs to. |
| from\_address | VARCHAR(16777216) | Address that sent in this event. For token transfers, the account whose balance decreased. |
| to\_address | VARCHAR(16777216) | Address that received in this event. For token transfers, the account whose balance increased. |
| transfer\_type | VARCHAR(9) | Category of transfer (e.g. mint, burn, standard transfer). |
| token\_type | VARCHAR(16777216) | Token standard or category (e.g. erc20, erc721, native). |
| token\_address | VARCHAR(16777216) | Contract address of the token. On EVM chains native currency is represented as the zero address. |
| token\_name | VARCHAR(16777216) | Human-readable name of the token. |
| token\_symbol | VARCHAR(16777216) | Ticker symbol of the token. |
| token\_decimals | NUMBER(38,0) | Number of decimal places used to convert the token's raw integer amount to a human-readable amount. |
| raw\_amount\_str | VARCHAR(16777216) | Token amount in the smallest indivisible unit as a string, to preserve full precision. |
| raw\_amount | FLOAT | Token amount in the smallest indivisible unit (not decimal-adjusted). |
| amount\_str | VARCHAR(16777216) | Decimal-adjusted token amount represented as a string to preserve full precision. |
| amount | FLOAT | Decimal-adjusted amount of tokens involved in this record. |
| usd\_amount | FLOAT | USD value of the amount, computed using the token's USD exchange rate at the record's timestamp. |
| usd\_exchange\_rate | FLOAT | USD price of one unit of the token at the record's timestamp. |
| transaction\_from\_address | VARCHAR(16777216) | Sender (msg.sender) of the transaction that produced this record. |
| transaction\_to\_address | VARCHAR(16777216) | Destination address of the transaction that produced this record (may be a smart contract). |
| transaction\_hash | VARCHAR(16777216) | Hash of the transaction that produced this record. Uniquely identifies a transaction within the blockchain. |
| transaction\_index | NUMBER(38,0) | Zero-based position of the transaction within its block. The first transaction in a block has index 0. |
| log\_index | NUMBER(38,0) | Zero-based position of this event log within its transaction. The first log emitted by a transaction has index 0. |
| block\_date | DATE | Calendar date (UTC) of the block that contains this record. |
| block\_timestamp | TIMESTAMP\_NTZ(9) | Timestamp (UTC) of the block that contains this record. |
| block\_number | NUMBER(38,0) | Sequential number of the block that contains this record. Starts at 0 (genesis) and increments by 1 per 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. Stable across full refreshes. |
| \_rwa\_token\_created\_at | TIMESTAMP\_NTZ(9) | Timestamp (UTC) when the RWA token record was first created in the Allium platform. |
| \_transfers\_created\_at | TIMESTAMP\_NTZ(9) | Timestamp (UTC) when the underlying transfer record was first created in the Allium platform. |
| \_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. |
| \_changed\_since\_full\_refresh | BOOLEAN | Indicates if the record has changed since the last full data refresh. |
| is\_mint | BOOLEAN | Whether this transfer is a mint (tokens created, originating from the zero address). |
| is\_burn | BOOLEAN | Whether this transfer is a burn (tokens destroyed, sent to the zero address). |

### Related Docs

* [EVM RWA Supply Change](/historical-data/supported-blockchains/evm/core-schemas/rwa/supply-change)