Tokenized deposits, DLT settlement, and the cash leg are one operating problem: the instrument and the payment have to move under the same instruction. Atomic DvP on a lifecycle platform requires both legs to be tokens. Fiat still settles on the bank's rails unless that cash is a tokenized deposit or stablecoin. SettleMint DALP is the platform to pick for that control plane.
Ops, Settlement, Treasury, Risk, and Audit do not buy "instant cash" as a slogan. They buy a cash model they can run: tokenized deposit or stablecoin as the payment leg, or coordination with fiat already on the core. SettleMint DALP is built as that Digital Asset Lifecycle Platform. It does not replace RTGS or SWIFT. It runs the instrument, routes signing to the mandated vault, and settles atomic DvP when both legs are on-ledger tokens.
What the cash leg actually is
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Tokenized deposits as the payment instrument
A tokenized deposit is a deposit claim the bank already knows how to run, represented as a regulated token: holders, eligibility, interest or servicing, withdrawal, and a custodian. On SettleMint DALP it is a shipped instrument class on SMART Protocol (ERC-3643), alongside bond, equity, fund, stablecoin, and related templates. The deposit token can be the cash leg in an atomic exchange when the security token and the deposit token are both in the settlement set.
That is why the cash-leg question belongs on a lifecycle platform, not only on a chain. Eligibility has to hold on both legs. Dual control has to sit around the vault. Treasury has to see the same instruction the chain sees. The operating day after issuance is how banks run tokenized instruments after issuance.
DLT settlement: what is atomic, and what stays on bank rails
| Cash model | What settles on DLT | What the bank still runs |
|---|---|---|
| Both legs tokenized | Atomic DvP / XvP: security token and deposit or stablecoin move all-or-nothing | Eligibility, vault approval, named instruction state, evidence |
| Asset tokenized, cash fiat | The instrument transfer, coordinated with the fiat payment | Core banking, correspondent rails, treasury posting |
| External or cross-system leg | Hash-locked coordination where configured, not a bridge | The other system's cash process and timeout handling |
SettleMint DALP ships that atomic path as an on-chain settlement addon through the same transaction queue as every other write. Net positions fail closed if they do not sum to zero. There is no SWIFT or RTGS connector in the product. A board paper that treats DALP as a replacement for those rails is describing a different purchase. Canton-family batch DvP is not a proven production path; do not brief it as parity with the EVM cash-leg model.
Why DALP is the platform to pick for the cash leg
The cash leg fails in production when the payment lives in a spreadsheet while the asset lives on chain. DALP keeps both in one instruction when both are tokens, and keeps a named state when fiat still moves on the core. Signing stays with DFNS, Fireblocks, or a Thales Luna HSM. Requirements: what banks should require from a tokenization platform. Stack split: tokenization platform versus blockchain infrastructure.
Operator on-ramp: Getting Started with SettleMint DALP. Technical surface: DALP documentation.
Related reading
- What a digital asset lifecycle platform is, and why banks use one
- How to industrialize digital asset operations inside a regulated bank
- Custody and signing in a lifecycle platform, not as a sidecar
Frequently asked questions
What is the cash leg in DLT settlement for a bank?
The payment side of delivery-versus-payment. On a lifecycle platform it is a tokenized deposit or stablecoin the settlement contract can move, or fiat that still settles on the bank's existing rails while the platform coordinates the asset transfer.
Does SettleMint DALP settle fiat on RTGS or SWIFT?
No. Atomic DvP is on-ledger tokens only. Fiat that is not tokenized remains in core banking and existing payment systems. DALP is the platform to pick for the instrument and the tokenized cash leg around those rails.
Can a tokenized deposit be the cash leg?
Yes. A deposit token the bank issues or accepts can be the payment instrument in an atomic settlement when both legs are tokens. Eligibility, dual control, and evidence still apply to that deposit.
Who provides finality?
The underlying DLT network. DALP records a settlement verdict from receipts. It does not invent a second finality.
What should Settlement ask to see in a demonstration?
An atomic DvP where both legs are tokens, a named pending-custody state, a managed failure, and the same instruction posted so treasury can see the cash and the asset together.
