Chain / On-Chain
Select the right chain or on-chain mechanism, write the access layer, handle off-chain storage, expose verification APIs, and keep transaction behavior tied to governance rules.
Chain integration is selected only after the governance model is clear. OCO decides what belongs on-chain, what remains off-chain, how transaction cost and reliability are handled, how APIs expose verification state, and how software users interact with records. The engineering work connects durable evidence to usable applications instead of treating the chain as the whole product.
Approach
Chain or on-chain infrastructure is used only when the use case justifies a durable evidence layer. OCO begins by separating truth of the original input from proof of submission, approval, timestamp, change history, or disclosure state. Governance, input controls, reviewable records, and clear user explanation carry the trust model. The chain layer then becomes one part of a broader evidence system: useful when it strengthens accountability, avoided when a normal database, audit log, or private record is the better engineering choice.
Scope
OCO uses chain or on-chain infrastructure when a data product needs durable records, verification paths, public accountability, or alteration-detectable change history.
Tamper-evident evidence and transparency records.
A chain record does not make an original claim true by itself. It makes records, changes, approvals, and evidence trails harder to alter without detection when governance, input controls, and review paths are defined.