Crypto Brief

Source-linked crypto news covering DeFi, stablecoins, Ethereum and protocol governance.

Updated 21 Sept 2026.

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How D20DAO uses API3 AirnodeHub data in its Arc randomness workflow

D20DAO uses signed API inputs from API3's AirnodeHub in an Arc randomness workflow. Its new x402 interface lets agents purchase the resulting service over HTTP, while the input signatures and the VRF result remain separate pieces of evidence.

Chain Minute | Published 21 Sept 2026 | Guide

Sources: Chain Minute | airnodehub-docs.api3.org | d20dao.org

SingularityNET bridge incident expands to unauthorized AGIX and WMTx minting

Reports link a single attack cluster to unauthorized AGIX and WMTx minting, while the incident response and supply reconciliation remain in progress.

Chain Incident | Published 21 Sept 2026

Sources: Chain Incident | news.google.com

Solana's 250ms slots tighten validator handoffs before the proposed 200ms step

Solana's 250 millisecond target slot is live, but the next reduction depends on sustained evidence about handoffs, forwarding and client diversity.

Fork Brief | Published 21 Sept 2026

Sources: Fork Brief | cryptoslate.com

Aave's Arc market drew USDC liquidity before borrowers arrived

A point-in-time snapshot reported roughly $76 million supplied to Aave V4 on Arc while less than $100,000 had been borrowed.

Yield Dispatch | Published 21 Sept 2026

Sources: Yield Dispatch | cryptoslate.com

ZetaChain holders back a Solana migration as the project winds down its L1

ZetaChain voters approved a proposal to retire the project's Layer 1 and move ZETA to Solana, while a second vote is still required for the migration details.

Chain Minute | Published 21 Sept 2026

Sources: Chain Minute | www.theblock.co