Following up here to close the loop: both points from this discussion … the (chainId, registry, anchorId) anchoring tuple and the input-freshness question — are now implemented in ERC-8348, spec and reference code. Posted the detail in the ERC-8348 thread rather than here since it’s contract-layer specifics: ERC-8348: Financial Lease - #4 by javierpmateos
Proposing a family of candidate ERC interfaces for titled asset infrastructure — architecture review
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