Passport run version of EAS indexer

[Jeremy-Gitcoin]

User Story:

As the Passport XYZ team I want to run our own instance of the EAS indexer So that I can have monitoring and ensure stability of our Coinbase stamp

Acceptance Criteria

GIVEN the end user creates a new attestation for our Coinbase stamp on Base WHEN a user updates their attestation(s) THEN Passport indexer captures that in real time

• [ ] Setup our own indexer of EAS data
• [ ] Switch our stamp to use Passport indexer as primary
• [ ] If that fails, setup EAS as a backup
• [ ] Create monitoring (no attestations within 30min or 1hr) to alert and cut over to backup

From the EAS team: Our indexer is open source. https://github.com/ethereum-attestation-service/eas-indexing-service You can run it as a docker instance or you can manually connect it to a postgres db and run start.sh.

We should enable monitoring as well so we know if/when their are issues with the

Product & Design Links:

#### Tech Details: #### Open Questions: #### Notes/Assumptions:

[Jeremy-Gitcoin]

@erichfi I put this in the backlog, let's monitor the EAS version and if we need to implement this we can set it up