Acknowledge Token

This is used by a profile owner to acknowledge a token posted to them.

The acknowledge token must contain a subject (sub) field which points to the actionId of the acknowledged action token.

Content-Addressing

This token is content-addressed using SHA-256:

• The entire JWT token (header + payload + signature) is hashed
• Action ID format: a1~{base64_hash}
• See Content-Addressing & Merkle Trees for details

Database Key

The database key for an acknowledge token is [iss, t, sub]

Purpose: This key ensures that a user can only have one active acknowledgment for a given action. The key components are:

• iss: Issuer identity (who is acknowledging)
• t: Token type (“ACK”)
• sub: Subject (the action being acknowledged)

Example:

• Owner acknowledges a post → Stored with key [owner.cloudillo.net, "ACK", a1~post123]
• Owner updates the acknowledgment → New token with same key, previous one is marked deleted
• Only ONE acknowledgment per action from the same user

Example

User @owner.cloudillo.net acknowledges an action posted to it’s feed: