seal

Definition

a seal is a cryptographic commitment in the form of a cryptographic digest or hash tree root (Merkle root) that anchors arbitrary data or a tree of hashes of arbitrary data to a particular event in the key event sequence.
Source: Dr. S. Smith

Explanation

A cryptographic commitment in the form of a cryptographic digest or hash tree root (Merkle root) that anchors arbitrary data or a tree of hashes of arbitrary data to a particular event in the key event sequence.
Source KERI Whitepaper section 7.23 page 47

A seal is a cryptographic proof in a secondary root-of-trust (e.g. TEL) that is anchored in a primary-root-of-trust (e.g.KEL).
Source Same Smith

What is it worth?

The payload of the seal becomes immutable and the controller commits a signature to the seal.

| TBW prio 2 |