This API is in private preview. Endpoint availability and response schemas may change before general availability.
The Chain API keeps raw source material distinct from normalized block-oriented objects. HyperCore uses exchange concepts — markets, orders, fills, and actions — rather than EVM transactions.
| Field | Type | Description |
|---|---|---|
abci_block.round | integer | The block identifier. |
abci_block.parent_round | integer | Links to the preceding block. |
abci_block.time | integer | Block timestamp in milliseconds. |
abci_block.proposer | string | Address of the validator that proposed the block. |
abci_block.hardfork | object | Protocol version and activation round. |
abci_block.signed_action_bundles | array | Pairs of [tx_hash, bundle]. Each bundle carries signed actions, including signature, action type, nonce, vault address, and expiry, together with broadcaster and broadcaster nonce. |
resps | object | Execution results keyed by transaction hash. Each result includes a user address and an ok or err status. |
The gRPC block stream exposes raw HyperCore block content. The JSON-RPC block methods return normalized block objects for lookup and bounded backfill. The two surfaces describe the same block data at different semantic levels.
For data-product queries over normalized historical material, see historical data.