# Shared-evidence design comparison

Version: 1.0 · October 5, 2026
Source: https://bsv.place/guides/iot-records-and-shared-evidence/
Status: Proposed template; not a tested result

- User task and participating parties:
- Exact fact another party needs to verify:
- Device accuracy / provenance evidence:
- Acceptable operator and settlement trust:
- Record, schema, keys and access retention:
- Public material and privacy implications:
- Cost per completed task (not only transaction fees):
- Failure and correction handling:

Compare each candidate: signed database log; transparency service; ledger anchor.
For each: benefit, missing capability, dependencies, actual measurements, unknowns.

- Chosen design and reason (a database is a valid outcome):
- Demonstrator versions, date and observed result:
- Independent recovery result and scope:
- Evidence that would change the choice: