Colosseum Codex: Agent Hackathon Winners, P-Token, Mobile Builder Grants

🎂Happy Birthday Solana!

Solana turned 6 this week and what a ride it's been!

From the early days of record-breaking TPS claims to the network outages that had critics writing obituaries, through the FTX collapse that tested the ecosystem's will to survive, and out the other side with a developer community that just kept building.

Six years in, Solana is processing more transactions than ever, onboarding the next wave of mobile users through Seeker, and attracting serious institutional attention.

The chaos was real, but so is what's been built. The future has never looked more exciting, and the builders aren't slowing down.

Here's what's featured in this week's issue:

• Colosseum Announces the winners of the Solana Agent Hackathon
• P-Token (SIMD-266) has been approved
• Solana Mobile Builder SKR Grants are live
• Announcing Solana Audit Arena weekly security competition

🏆 Agent Hackathon Winners

Colosseum announced the winners of the Agent Hackathon, an experimental 11-day competition that attracted 1,634 OpenClaw agents and resulted in 454 completed project submissions from 753 active teams. AI, Infrastructure, and DeFi were the top project categories by volume.

Winners include: 

🥇 First Place ($50,000): @DegenDomeSolana
🥈 Second Place ($30,000) AgentOS by @0xbraindeds
🥉 Third Place ($15,000): @blockhelix
🤖 Most Agentic ($5,000): @cludebot

The competition generated 13,560 total votes split between 8,304 human votes and 5,256 agent votes, alongside 55,365 comments and nearly 7,000 forum posts. The majority of participants worked solo, with 737 independent submissions versus 16 team-based entries.

Honorable mentions go to Sentry Agent Economy, StableGuard, Solana TX Debugger, AXLE Protocol, SolShield, Murkl, Clawbook, AgentGrind.fun, TaskForce, MoltMob, Cabal Trading, and Karma Card.

Announcing the winners of the Solana Agent Hackathon

🪙 P-Token Approved

SIMD 266, introducing P-Token, has been approved. P-Token is a compute-optimized replacement for the current SPL Token program, built on Pinocchio rather than a new token standard or wallet-facing change.

The compute reductions are significant. Transfer drops from 4,645 CUs to 79. Transfer_checked drops from 6,200 to 111. Standard token operations see roughly 95% compute reduction across the board.

Three new instructions accompany the redesign: 

• `batch` executes multiple token instructions in a single CPI call, paying the base CPI cost once rather than per instruction.
•  `withdraw_excess_lamports` recovers SOL accidentally stuck in mint accounts. 
• `unwrap_lamports` sends lamports directly to a destination without temporary native token accounts.

P-Token is a program swap, not a migration. 

It deploys at a new address implementing the same instruction set and account layouts as the existing SPL Token program. Existing mints, token accounts, and ATAs are unchanged while new mints can opt into P-Token. Protocols only need to update their CPI target to the new program ID. 

Staged deployment and feature gate activation on the cluster are expected to follow, with a targeted launch in April 2026.

Solana Approves SIMD-0266 Upgrade for Faster Transactions

📱 Solana Mobile Grants

Solana Mobile launched a Builder Grants program to fund teams building on Seeker and the Solana Mobile ecosystem, with 4.3B SKR staked and 100k+ active users on the dApp Store.

Two funding tracks are available: 

• Open Builder Grants for new ideas
• Requests for Proposals targeting specific gaps in developer tooling and mobile primitives.

Applicants must show mobile-first design using native Android features, Solana Mobile Stack integration (Mobile Wallet Adapter, Seed Vault), and a clear milestone timeline.

Priority projects include apps with viral or sticky retention by default, creative SKR integrations for payments, incentives, or exclusive experiences, and developer tools that lower the barrier for mobile builders. 

Selected teams receive funding, technical guidance from the Solana Mobile team, and marketing support for dApp Store launches, where new apps can reach 10,000–20,000 users within weeks.

Solana Mobile Builder Grants: Bring Your Best Seeker and SKR Ideas

⚔️ Solana Audit Arena

Solana Audit Arena is a free, weekly security competition for Solana security researchers. 

Each Monday, a new Anchor program is released, built using the safe-solana-builder tool and modeled on real-world DeFi implementations, for participants to audit and find vulnerabilities.

The competition targets junior researchers who lack a clear path to demonstrate skills, with realistic Solana programs designed to reflect production complexity rather than contrived examples. 

Week 1 features StakeFlow, a staking protocol with liquid and locked modes. Participants audit 16 instructions across a three-role permission system with focus areas including access control, reward calculation arithmetic, PDA validation, and CPI safety. 

Submissions are filed as GitHub Issues during a 7-day open window. The following Monday, @0xcastle_chain validates and scores findings, posts results on X, and releases the next program. Late submissions are not accepted.

Solana Audit Arena

⚡ Quick Hits

Rust Enums Don't Serialize Themselves: What I Discovered About Memory, bytemuck, and Solana - @inspiration_gx

Fixing the Biggest UX Problem in Crypto with KORA on Solana (video) - Jonas Hahn

Active Accelerators & Growth Programs for Solana Builders - @solana_stream

How hard can it be to price a token on-chain? (very) - @0xanmol

First product out of the new Solana Foundation products team is tokens.xyz - @vibhu

Introducing the Chewing Glass Explorer: a Solana explorer built for devs - @redacted_noah

⚙️ Tools & Resources

x402-solana lets you use Solana Kit with QuickNode's RPC with no account, API key, or subscription required. Just a Solana wallet file with some USDC and payments are made automatically per-request using the x402 protocol.

SVM Whiteboard is a simple educational project to demonstrate how (SVM) works written in Go, and simulates the core logic of Solana, like accounts, instructions, and memory management.

solana-mpp is an SPL token payment library for the Machine Payments Protocol (HTTP 402), supporting USDC, USDT, and custom tokens with on-chain
reference key verification.

solana-mpp-sdk is a TypeScript SDK implementing the Machine Payments Protocol over HTTP 402, with one-time SPL token payments and voucher-based
streaming sessions, supporting ConnectorKit and @solana/kit signers.

💸 Funding

VeryAI secured $10M in seed funding led by Polychain Capital, with participation from Anagram, Berggren Institute, and angel investor Anatoly Yakovenko, to launch a Solana-based palm verification system using ZK proofs and Solana Attestation Service for AI fraud detection.

👩‍🔧 Get Hired

• Kast is hiring a Lead Flutter Developer
• Anza is hiring a Software Engineer, Security
• Veda is hiring a Smart Contract Engineer - SVM
• LI.FI is hiring a VP of Engineering

🎧 Listen to This

11AM with Seed Club

Vibhu Norby, CPO at Solana Foundation, on faster product launches, what token success looks like, AI compressing idea-to-execution cycles, and the Foundation's push into enterprise and builder distribution.

Vibhu Norby, Chief Product Officer at Solana Foundation

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