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IOTA Single Notarization

IOTA Single Notarization

IOTA Single Notarization is one of the two components of the IOTA Notarization Toolkit, alongside IOTA Audit Trails. Single Notarization provides two powerful methods for creating verifiable, on-chain records of any individual piece of digital data. By anchoring data to the IOTA ledger, Single Notarization transforms it into a permanent, tamper-proof asset that can be independently verified by anyone, at any time.

Notarization Methods.​

The IOTA Single Notarization component offers two powerful, distinct methods to cater to a wide range of use cases:

  • Locked Notarization: For creating permanent, static records that can not be changed until the object is destroyed. Ideal for contracts, certificates, and legal evidence.
  • Dynamic Notarization: For creating records of evolving data where only the most current version is relevant. Ideal for tracking asset status, managing registries, or versioning living documents.

Together, these methods provide a comprehensive foundation for building applications that require digital trust.

Key Actors in the Single Notarization Process​

The Single Notarization involves two primary actors that work together to ensure data integrity and verification:

Prover​

The Prover is responsible for creating and submitting notarization transactions that embed immutable data into the IOTA network.

Key Responsibilities:

  • Generate cryptographic hashes of documents, media files, or any data requiring notarization
  • Submit transactions that store this data on the IOTA network, ensuring immutability
  • Maintain original documents off-chain while linking them to on-chain records through unique object IDs (for privacy-focused implementations)
  • Optionally store complete data on-chain using the notarization object as the official data repository

Verifier​

The Verifier confirms the integrity and immutability of data by validating information stored on the IOTA ledger.

Key Responsibilities:

  • Request original documents and their associated object IDs from the Prover
  • Query the IOTA network through the Notarization client packages to retrieve stored data using object IDs
  • Validate that data stored in the ledger matches the original document (for hash-based verification)
  • Verify the authenticity and integrity of on-chain stored data independently