Privacy for the Optimism to Scroll direction
Where offered, Private Route is intended to reduce an obvious direct association between the Optimism sending wallet and Scroll receiving wallet; it does not hide either blockchain. ETH is the native gas asset for Optimism. EVM 0x account address ETH is the native gas asset for Scroll. EVM 0x account address Similar amounts, timing, address reuse, and later consolidation can still add association signals. Identity requirements must be checked separately.
Optimism source-side visibility
Optimism exposes account history, token approvals, contract calls, logs, gas funding, amounts, and timing under its own chain identifier. OP Mainnet is an OP Stack optimistic rollup with sequenced L2 execution and Ethereum settlement. Its canonical withdrawal model has different timing from ordinary L2 inclusion, and OP Mainnet token contracts are distinct from Ethereum and other OP Stack chains. The source deposit, gas funding, asset representation, confirmations, and sending-address history remain outside any promise of invisibility.
Scroll destination-side visibility
Scroll exposes account history, token approvals, contract calls, logs, gas funding, amounts, and timing under its own chain identifier. It is a bytecode-compatible zero-knowledge EVM rollup that proves batches to Ethereum. Scroll inclusion and Ethereum proof settlement are distinct, and its token contracts must be verified independently from L1. The destination delivery and later activity can remain observable even when the provider path reduces a direct association.
Optimism deposit role versus Scroll receipt role
An OP Mainnet source uses sequenced OP Stack execution and ETH gas; ordinary route processing is not the same as the canonical L2 withdrawal delay. Those deposit-side events remain public. A Scroll receipt is an L2 native or contract balance whose proof settlement to Ethereum is a separate milestone; later activity uses ETH on Scroll. The receipt and later activity remain public.
Two EVM histories can still be compared
Optimism and Scroll use separate chain identifiers, balances, contracts, transaction hashes, and gas records even when address syntax matches. Sequencer inclusion and settlement timing can add further observable milestones.
WBTC custody-wrapper evidence; WBTC custody-wrapper evidence
WBTC approvals, wrapper-contract transfers, custodian-linked mint or burn context, and later unwrap activity remain public. No native Bitcoin UTXO is hidden by a WBTC token transfer. WBTC leaves through a custodial wrapper contract with token approval and source-chain gas; no native Bitcoin UTXO is spent by that transfer. The source transfer remains public. WBTC approvals, wrapper-contract transfers, custodian-linked mint or burn context, and later unwrap activity remain public. No native Bitcoin UTXO is hidden by a WBTC token transfer. WBTC arrives as a wrapper-contract token and must not be sent onward to a native Bitcoin address without an explicit unwrap or bridge path. The destination receipt and later use remain public even when direct wallet association is reduced.
Cross-chain linkability limits
Private routing can reduce an obvious link between two EVM accounts, but source approvals, gas, logs, destination contract or native receipt, and later activity remain on separate chain histories. Sequencer and settlement timing can add correlation evidence. An OP Mainnet source uses sequenced OP Stack execution and ETH gas; ordinary route processing is not the same as the canonical L2 withdrawal delay. WBTC leaves through a custodial wrapper contract with token approval and source-chain gas; no native Bitcoin UTXO is spent by that transfer. A Scroll receipt is an L2 native or contract balance whose proof settlement to Ethereum is a separate milestone; later activity uses ETH on Scroll. WBTC arrives as a wrapper-contract token and must not be sent onward to a native Bitcoin address without an explicit unwrap or bridge path.
Verification status is separate from privacy status
The provider must support the exact L2 direction, asset contracts, amount, and region. Rollup support and privacy routing do not imply that identity verification, account, or custody requirements are absent. An OP Mainnet source uses sequenced OP Stack execution and ETH gas; ordinary route processing is not the same as the canonical L2 withdrawal delay. WBTC leaves through a custodial wrapper contract with token approval and source-chain gas; no native Bitcoin UTXO is spent by that transfer. A Scroll receipt is an L2 native or contract balance whose proof settlement to Ethereum is a separate milestone; later activity uses ETH on Scroll. WBTC arrives as a wrapper-contract token and must not be sent onward to a native Bitcoin address without an explicit unwrap or bridge path.
