Naveen Jain splits Tari mining lanes to stop network attacks
- Tari splits block mining across four hardware algorithms to prevent fifty-one percent attacks.
- A one-way token burn connects Tari’s base chain to its upcoming private smart contract layer.
- Allocint published a zero-knowledge scheme embedding encrypted transaction records directly into standard Bitcoin data fields.
Base-layer privacy is making a hard comeback. As regulatory pressure mounts, developers are bypassing protocol soft forks to build zero-knowledge features directly on top of existing blockchains.
On Ungovernable Misfits, researchers Misha Kamarov and Clara Schakelman outlined Allocint's "Shielded Bitcoin" design. The protocol embeds Zcash-style encrypted transaction records into standard OP_RETURN and witness data fields. Off-chain indexers process the encrypted records in a tree structure without requiring changes to Bitcoin's consensus rules. Users spend funds by publishing nullifier tags and zero-knowledge proofs to verify supply integrity without revealing sender or recipient addresses.
The approach keeps base nodes oblivious to the underlying data, but its peg mechanism remains unproven. Allocint proposed a cross-chain bridge scheme called PIPES v2 using witness encryption, though its security model remains purely theoretical. That gap highlights the risk of complex off-chain bridges. When Blockstream patched a 2018 proof caching bug in August, it accidentally created a new formatting flaw. Attackers exploited that vulnerability in September to mint 4,000 unbacked Liquid Bitcoin through automated multisig approvals.
Two days after Allocint's proposal circulated, attention shifted to Tari's multi-algorithm base layer. Speaking on the Bitcoin Takeover Podcast, Tari co-founder Naveen Jain detailed how the project secures its Mimblewimble base chain against hash rate hijacking. Small proof-of-work networks often fall victim to 51 percent attacks when rented hardware floods a single mining algorithm. Tari divides block creation equally across four distinct lanes: Monero-merged RandomX, solo RandomX, GPU-focused Cuckaroo29, and SHA-3 ASICs.
The four-lane structure forces attackers to conquer multiple distinct hardware ecosystems simultaneously rather than renting excess cloud compute. When a difficulty bug recently made Tari's Cuckaroo29 GPU lane easier to mine, dynamic rebalancing across the remaining three lanes kept the network secure while developers deployed a hard fork fix.
Tari is channeling that base security into an enterprise privacy layer scheduled for mainnet launch on November 11. Instead of competing for memecoin volume, Tari targets selective privacy for commercial contracts, payroll, and private escrow systems. To prevent the smart-contract exploits that plague cross-chain bridges, Tari uses a one-way token burn. Users permanently destroy layer-one XTM tokens to mint confidential layer-two assets, eliminating the vector where an L2 bug can mint fresh base-layer coins.
Both protocols reflect a clear tactical pivot among crypto developers. Instead of begging Bitcoin core developers for contentious consensus changes, creators are moving privacy into user-space data fields and dedicated second-layer environments.
The trade-offs remain sharp, but the direction is set. Base layers provide raw immutability, while off-chain indexers and execution environments handle the encrypted heavy lifting.
Source Intelligence
- Deep dive into what was said in the episodes
S17 E45: Talking Tari with Naveen Jain, Fox & Marguerite de Courcelle • Sep 30
- Naveen Jain describes Tari as a default confidential blockchain consisting of a Rust-based Mimblewimble layer 1 and a programmable layer 2. The layer 2, offering programmable confidentiality, is scheduled to launch on mainnet on November 11.
- Naveen Jain states Tari secures its network using four equally distributed mining lanes, which prevents 51% attacks. These include Monero-merged RandomX, solo RandomX, GPU-focused Cukaroo 29, and SHA-3 lanes.
- Naveen Jain explains that migrating assets to Tari's second layer requires burning layer 1 XTM tokens on a one-for-one basis. This one-way peg prevents the layer 2 from minting coins on the base layer.
- Naveen Jain argues that Beam's low adoption shows that great technology fails without community distribution and relationships. He asserts that Tari targets real businesses needing programmable confidentiality rather than speculative memecoin traders.
- Mr. Fox identifies securities trading and escrow payment systems as primary use cases for Tari's programmable privacy. These applications protect traders from public exposure of asset holdings and front-running by bots.
Also discussed on this episode: (6)
Startups (1)
- Naveen Jain notes that Tari's reference ticketing application, Big Neon, signed exclusive US venue contracts before the COVID-19 pandemic halted live events. The company eventually sold the remnants of the business to Spotify.
Mining (2)
- Naveen Jain and Mr. Fox confirm that a recent C29 consensus bug, which made mining blocks too easy, was resolved via a hard fork. The multi-algorithm structure preserved network security during the issue.
- Mr. Fox and Marguerite de Courcelle praise Tari Universe, a one-click desktop mining application. The software lowers user acquisition friction by allowing individuals to earn XTM without undergoing KYC verification.
History (1)
- Marguerite de Courcelle claims she created the first cryptographic puzzle in 2014 by hiding private keys inside Bitcoin Magazine portraits of Amir Taaki and Cody Wilson.
Payments (1)
- Mr. Fox plans to use Tari's programmable smart contracts to build a commission marketplace for the furry fandom. This peer-to-peer system will bypass payment restrictions and transaction clawbacks imposed by Stripe and PayPal.
Coding (1)
- Marguerite de Courcelle observes that modern AI tools allow solo developers to build and playtest functional games over a single weekend. This acceleration shifts the focus of blockchain game design back to economic modeling.
Did Bitcoin Just Go Dark? | THE BITCOIN BRIEF 92 • Sep 28
- Research lab Allocint proposed "Shielded Bitcoin," a design for Zcash-style private transfers using zero-knowledge proofs without altering the base protocol. It utilizes OPRETURN or witness data to store encrypted notes and nullifiers, though the peg-in mechanism remains unproven.
Also discussed on this episode: (10)
Privacy (1)
- Keone published his seventh letter detailing 30 days of squalid transit conditions alongside violent offenders. To support the Samourai developer defense fund, Rick is running a provably fair lottery on freesamurai.now that has raised over six million sats.
Protocol (1)
- Blockstream's post-mortem of the September 6 exploit revealed that a patch for a 2018 range-proof cache bug introduced a secondary vulnerability. The attacker used this flaw to mint L-BTC, pegging out 3,996 Bitcoin through the SideSwap interface.
Custody (2)
- Bitget lost $387 million from its hot and warm wallets after an attacker bypassed backend approval processes using fake transaction data. While Circle and Tether froze some stablecoins, the attacker converted funds to Bitcoin using Thorchain and Wasabi CoinJoin.
- Galaxy's Alex Thorn reported that 52.37 Bitcoin stolen from weak entropy Coldcard addresses was moved to a Wyoming Crypto Recovery Trust. Claiming the funds requires proof of address control, which remains difficult since the private keys were publicly leaked.
Lightning (3)
- Security disclosures revealed two Eclair denial-of-service flaws discovered via AI-assisted bug hunting, alongside four LND vulnerabilities. The highest-severity LND bug allowed invoices to be marked as settled even after an interceptor canceled the payment.
- The HTTP 402 payment required status code has been updated with a specification by Ben Carmen to support Lightning payments. Servers can issue Lightning invoices tied to requests, and clients gain access by submitting the pre-image upon payment.
- Zeus 13.2.2 introduced SAT routing by default and critical iOS keychain fixes, while Blockstream Green restored multisig setups. Sina OS 1.3 was released as an experimental ephemeral Linux signing tool, and Umbrel OS 2.0 launched with GPU acceleration.
Regulation (2)
- SEC Commissioner Hester Peirce announced her resignation, effective October 2, 2024. In her final speeches, Peirce advocated for replacing paper-based KYC collection with zero-knowledge proofs and attribute-based credentials to preserve user privacy and data security.
- New York State sued Polymarket US for unlicensed gambling, seeking $4.6 billion in fines. Polymarket removed the case to federal court, arguing that the Commodity Futures Trading Commission holds exclusive regulatory jurisdiction over sports and prediction markets.
Markets (1)
- BitMEX officially closed its exchange services after 11 years of operations, halting deposits and trading. Remaining verified accounts holding a balance after October 1, 2024, will face a monthly fee of 1% or $50.