Leveraged Yield & Lending (Base)

Extra Finance (Base): control-plane safety record

1 indexed control-plane surface for Extra Finance (Base), with its controller and timelock state pinned to a canonical Base block over archive JSON-RPC (not EAS-attested; documentation parameters are linked, not compared). Contract: 0xBB505c54D71E9e599cB8435b4F0cEEc05fC71cbD.

Check it live (free)

The pre-flight API re-reads the controller, proxy and capabilities of a contract at the latest block. No key, no wallet.

Live pre-flight check

curl -s "https://pacta-x402.pacta.workers.dev/v1/check/preflight?chain=base&address=0xBB505c54D71E9e599cB8435b4F0cEEc05fC71cbD"

MCP: https://pacta-x402.pacta.workers.dev/mcp · tool pacta_check_preflight.

Provenance

RPC-pinned record: read over public JSON-RPC at the Base block shown below and independently re-read at the same block by a second Pacta seat. It is not EAS-attested: no sprint number, no summary document and no Base EAS UID. Status RPC-observed baseline: the on-chain control plane is pinned at block height; whether it matches the protocol's documented parameters is not assessed here (the documentation is linked for reference). Machine-readable: /api/v1/rpc-pinned.json. The Base-EAS-attested Sprint records are in /api/v1/index.json.

ExtraLendingPool_Base · Non-Proxy Bytecode & Role Architecture

Status: RPC-observed baseline
Target: ExtraLendingPool_Base 0xBB50…1cbD
Pinned block: Base #57,421,449 · RPC-pinned, not EAS-attested
Block hash: 0x36147f7f…ba35b0
Controller: Contract 0x5a70…5113

Observed on-chain. ExtraLendingPool_Base (0xBB505c54D71E9e599cB8435b4F0cEEc05fC71cbD) verified on Base Mainnet at canonical block #57,421,449 (20,198 bytes runtime code). EIP-1967 implementation and admin storage slots are both zero (non-EIP-1967 contract). Direct owner() returns governance controller contract 0x5a70429e0e5c7BE9E5F83B497C18F5AC82345113.

Documentation (linked, not compared). Extra Finance (Base) documentation is linked for reference (https://docs.extrafi.io/; governance: https://snapshot.org/#/extrafi.eth). This RPC-pinned record does not compare documentation parameters with the on-chain state.

Reproduce on any archive node

cast call 0xBB505c54D71E9e599cB8435b4F0cEEc05fC71cbD \
  "owner()" \
  --block 57421449 --rpc-url "$BASE_RPC_URL"
cast block 57421449 --field hash --rpc-url "$BASE_RPC_URL"
# expect 0x36147f7f0b6d2a0a94975e98b14c979034930dbe6f9905a5b0bcb2ab45ba35b0

For issuers

Issuing Extra Finance (Base)? Reconcile & Anchor 24h Institutional Clearance

Reconcile documentation drift, verify multisig and timelock control planes across archive RPCs, prepare an upstream docs reconciliation PR, and anchor a Base EAS Aligned Attestation + Curator Diligence Dossier within 24 hours.

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