Echo Layer｜回响层

Echoes are non-authoritative, non-amending records.

High-value Echoes include verification, critique, refusal, technical audit, propagation capsule, and seed echoes — not only praise.

• Submit
• Archive
• Digests
• Echo Types E1–E9
• High-Value Criteria
• Archive Policy
• Echo Records — human-readable record index
• Echo Index JSON — machine-readable record index