Solana Introduction | Helium Documentation (2024)

Major Milestones​

• Available on Solana devnet for testing [Complete]
• sec3 Smart Contract Audit[Complete]
• Mainnet Launch [Complete]

Migration Process Steps​

The migration to Solana took place on April 18, 2023, beginning at 9am PST. The team held a 48-hourwindow to complete the migration. Hotspots and LoRaWAN devices continued to operate throughout themigration window.

1. The Helium blockchain officially halted.
2. A snapshot was taken of Helium chain state.
3. Existing $HNT and $MOBILE were mapped to Solana. Hotspots were minted as NFTs.
4. During the Migration, PoC and Data Transfer continued to function through the off-chain Oracle,rewards were claimable after the transition phase (estimated 24-48 hours) was complete.
5. Users and Exchanges can access their assets using the same private key on Solana (Solana andHelium blockchain use the same ed25519 encryptionalgorithm.)
6. Programmatic Treasury was activated in 2023 Q2, users will be able to convert $MOBILE and $IOTinto $HNT on chain at that time.

Migration Guides​

As part of the Helium blockchain migration to Solana, there are some changes to existing HeliumWallets and Applications for users to be aware of.

Complete migration guides have been written for different users of Helium.

Helium Programs on Solana​

The code for all of these Programs is open source, and available in thehelium-program-library repository on Github.

circuit_breaker​

• Program ID: circAbx64bbsscPbQzZAUvuXpHqrCe6fLMzc2uKXz9g
• Generic program wrapping sensitive mint authorities and token accounts in the Helium system toprevent large movements in the case of an exploit or bug.

data_credits​

• Program ID: credMBJhYFzfn7NxBMdU4aUqFggAjgztaCcv2Fo6fPT
• Manages the purchase, delegation, and burning of data credits.

helium_entity_manager​

• Program ID: hemjuPXBpNvggtaUnN1MwT3wrdhttKEfosTcc2P9Pg8
• Handles the issuance of NFTs representing entities that are rewardable on the Helium network, suchas Hotspots and mappers.

helium_sub_daos​

• Program ID: hdaoVTCqhfHHo75XdAMxBKdUqvq1i5bF23sisBqVgGR
• Manages the DAO/subnetwork structure proposed in HIP-51, including the minting of tokens tosubnetworks, HST holders, and the lazy_distributor for PoC earnings.

lazy_distributor​

• Program ID: 1azyuavdMyvsivtNxPoz6SucD18eDHeXzFCUPq5XU7w
• Allows off-chain Oracles to distribute PoC rewards to rewardable assets (such as Hotspots) thatare represented as NFTs.

lazy_transactions​

• Program ID: 1atrmQs3eq1N2FEYWu6tyTXbCjP4uQwExpjtnhXtS8h
• Used in the initial migration to Solana, this program allows compressing many transactions into amerkle root to be executed lazily. This guarantees all transactions are executed exactly once.

treasury_management​

• Program ID: treaf4wWBBty3fHdyBpo35Mz84M8k3heKXmjmi9vFt5
• Manages the treasury of each subnetwork as proposed in HIP-51, allowing DNT tokens to be swappedfor HNT according to a formula.

voter_stake_registry​

• Program ID: hvsrNC3NKbcryqDs2DocYHZ9yPKEVzdSjQG6RVtK1s8
• Handles voting power via veHNT in Helium Governance.

Packages (JS/Typescript)​

Important Addresses and Links​

All the tokens are on the TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA Program.

The mint IDs are as follows: