101 docs tagged with "How-To"

Explore the how-to guides for IOTA Smart Contracts, offering step-by-step instructions on various topics and functionalities.

Comprehensive guide to all read-only inspection methods for notarizations.

How to use read-only methods to inspect and query Audit Trail state, records, and configuration.

How to add records to an Audit Trail and read them back individually or through paginated traversal.

Guide to add properties to a federation hierarchy.

Guide to add a root authority to an existing federation.

How to allow coins and other objects

Learn how to tokenize assets on the IOTA blockchain. Asset tokenization refers to the process of representing real-world assets, such as real estate, art, commodities, stocks, or other valuable assets, as digital tokens on the blockchain network.

How to authenticate an account using public key verification in Move

How to create accounts that allow any member of a group to authenticate using zero-knowledge Merkle tree membership proofs

How to mitigate the risks of using shared objects as inputs to authenticator functions.

Basic smart contract example.

How sponsor authenticators must cryptographically bind their approval to the sender's identity — the sender's authenticator function and auth digest — to prevent sender-side identity swaps after the sponsor has signed.

Learn how to build and test Move packages in IOTA with detailed instructions and examples.

Calling smart contract view functions with Solo.

Real-world example demonstrating how to use IOTA Audit Trails to ensure data integrity in a Phase III clinical trial with time-constrained access, deletion protection, and regulatory verification.

How to handle native Objects on L2 and use them as ERC721

How to configure write locks, deletion windows, and trail deletion locks on an Audit Trail.

How to configure wasp-cli. Requirements and configuration parameters.

How to create accounts that require a weighted threshold of member approvals before a transaction can execute

Create a Dynamic Notarization and publish it to an IOTA network.

Create a Locked Notarization and publish it to an IOTA network.

Explain how a VC is created and verified

Guide to issue permissions for granting accreditations in a federation.

Guide to issue permissions for attestation in a federation.

How to create an account using the builder pattern in Move

How to derive an IOTA address from a BIP-39 mnemonic using Ed25519, Secp256k1, and Secp256r1 signature schemes.

How to create an Audit Trail with metadata, an initial record, and role-based access control.

How to create a basic authenticator function in Move

Explain how a VP is created and verified

Solidity smart contract ERC20.

Create and deploy a Solidity smart contract to mint NFTs using the ERC721 standard.

Guide to create a new federation hierarchy on the IOTA network.

How to create a random Mnemonic

Introduction

How to create and manage time-locked accounts with unlock time restrictions

Create DID Documents and publish them to an IOTA network.

How to properly protect authenticator input parameters with cryptographic verification to prevent input tampering attacks

Real-world example demonstrating how to use IOTA Audit Trails to model a multi-party customs clearance process with tag-scoped roles and write locking.

How to delete an Audit Trail from the IOTA network after removing all its records.

How to deactivate or destroy an IOTA Identity

How to delete individual records or batch-delete all records from an Audit Trail.

Learn how to deploy smart contracts to IOTA EVM Testnet using popular tools like Remix and Hardhat.

Destroy a Dynamic Notarization based on its lock status.

Destroy a Locked Notarization based on its delete lock configuration.

Real-world example demonstrating how to use IOTA Audit Trails to model a Digital Product Passport for an e-bike battery with lifecycle tracking, service-network authorization, and reward payouts.

How to link a domain and a DID

How to create accounts that enforce a maximum withdrawal amount per transaction using intent-aware authentication

How to bind capabilities to specific wallet addresses and verify that revocation takes effect immediately.

Example of a _Solo_ test. It deploys a new chain and invokes some view calls.

Comprehensive guide to accreditations.

How to get the allowance of coins and other objects

How to get the balance of L1 assets on L2

How to retrieve coin balances for an IOTA address using the GraphQL client.

How to get the L2 Objects owned by an account.

Guide to retrieve properties from a federation hierarchy.

Get test IOTA tokens using the IOTA CLI, SDK, or cURL.

Install the IOTA framework and required prerequisites on your system, including the IOTA command line interface to interact with the IOTA network.

Explain the use of the storage interfaces and how they can be implemented

Explain how to link a verifiable presentation to its holder DID document

Guide to setting up and using a local IOTA network for development and testing.

How to manage a chain using the Grafana dashboard, a client to receive published events, logging, and validators.

How to create roles, issue constrained capabilities, revoke and destroy capabilities, and remove roles from an Audit Trail.

How to add, remove, and borrow dynamic fields on an account in Move

How to delegate tag registry management, add and remove tags dynamically, and understand in-use tag constraints.

Explain how to create and verify quantum resistant VCs and VPs.

How to pre-authorize multiple transactions with a single signature using Merkle tree-based authentication

How to build, inspect, and dry-run an IOTA transfer transaction before submission.

Learn how to publish your Move package on the IOTA network and interact with it using programmable transaction blocks.

How to query transactions filtered by a Move function call using the GraphQL client.

Guide to reinstate a previously revoked root authority in a federation.

Explain how resolving works including arguments

How to control which Move functions a key can call on an account

Explain how a VC can be revoked

Guide to revoke accreditation permissions in a federation.

Guide to revoke attestation permissions in a federation.

Guide to revoke root authority from a federation.

How to rotate the authenticator function of an account in Move

How to setup an access node.

Explain VC with selective disclosure.

Introduction

How to send funds from L1 to L2.

Introduction

How to sign and execute an IOTA transfer transaction on localnet.

How to create a sponsoring account that pays gas only for whitelisted sender authenticator functions and within per-user gas allowances

Real-world example demonstrating a comprehensive supply chain quality and compliance certification system using IOTA Hierarchies.

How to take the allowance of coins and other objects

Solo is a testing framework that allows developers to validate real smart contracts and entire inter-chain protocols.

How to interact with the L1 ledger in Solo.

Smart contracts can exchange assets between themselves on the same chain and between different chains, as well as with addresses on the L1 ledger.

How to properly implement transaction data cryptographic protection in authenticator functions to prevent transaction tampering attacks.

Transfer ownership of a Dynamic Notarization to another address.

Real-world example demonstrating a comprehensive university degree verification system using IOTA Hierarchies.

How DID Documents can be manipulated and how updates should be published

How to update and clear the mutable metadata on an Audit Trail while preserving immutable metadata.

Update the updatable metadata of a Dynamic Notarization.

Update the state of a Dynamic Notarization including content and metadata.

How to use record tags and role-scoped tag restrictions to control which participants can write which types of records.

Utility Functions used in Real World Examples

Guide to validate properties against accreditations in a hierarchy.

Zero Knowledge selectively disclosable VCs.