I noticed in SIGN Protocol the indexing layer quietly decides which attestations matter. On-chain attestations exist, but without being indexed under usable schemas, they’re practically invisible.
What is easy to miss is how this shapes credential verification. SIGN’s distribution logic often queries indexed attestations, not raw chain data.
At first glance it looks neutral, but the part that actually matters is who controls indexing rules. Attestors issue proofs, but indexers decide discoverability, affecting trust outcomes and even Sybil resistance filters tied to schemas.