Farcaster Introduces Collectible Casts Feature

The latest Envelop digest highlights six unusual developments in the cross-chain NFT ecosystem. While specific details aren't provided in the preview, the digest appears to focus on emerging patterns in NFT functionality and market behavior. **Key Context:** - Envelop provides tools for adding functionality to NFTs across chains - Features include economic setups, on-chain royalties, and rental mechanisms - The platform serves GameFi, marketplaces, art, and metaverse applications The digest follows previous coverage from November 2024 and December 2024, suggesting an ongoing series of market observations. The "stranger things" framing indicates noteworthy or unexpected trends in the NFT infrastructure space. [Read the full digest](https://paragraph.com/@envelop/preview/MRcgN1ddpCtyqiS1M6pK)

**21Shares has launched the first U.S. spot Dogecoin ETF**, now trading on NASDAQ following SEC approval. The product marks a significant milestone as the **first formally approved spot Dogecoin ETF** in the United States. The fund began trading on January 22, 2026, giving investors regulated exposure to Dogecoin through traditional brokerage accounts. This approval follows the SEC's evolving stance on cryptocurrency ETFs, expanding beyond Bitcoin and Ethereum products. [Official announcement](https://x.com/21shares_us/status/2014348378956521737)

GameFi is showing signs of life after being largely dismissed by the market. **SoSoValue's GameFi Index posted the highest returns last month**, marking an unexpected turnaround for the gaming sector. The performance was primarily driven by: - **$AXS** (Axie Infinity's token) - Other tradable gaming tokens This development is notable given the sector's previous struggles and widespread skepticism. The Ronin network, which powers Axie Infinity, has been part of a broader resurgence of gaming narratives in crypto. The comeback suggests that gaming tokens may be finding renewed interest from traders, though it remains to be seen whether this represents sustainable growth or short-term speculation.

**Indexy.xyz** has experienced significant growth, reaching **8,500+ users** and **1,500+ indexes** created in 2025. **Most Indexed Tokens:** - $i: 259 indexes - $bnkr: 191 indexes - $clanker: 173 indexes - $eth: 171 indexes The platform's most popular index is the **Farcaster Mini App (ID 117)** created by @cryptogirls_eth. **Top Performing Indexes:** - INDX ETH-KTA-CLANKER-REI: +14.43% - Brewlabs Memes on Base: +13.48% - INDX Mixed Memes on Base: +11.90%

**ERC-8004 "Trustless Agents"** introduces a new Ethereum standard for decentralized AI agents. The standard functions as an on-chain identity and reputation system for AI: - **Identity verification** through NFTs - **Reputation tracking** via audits - **Third-party validation** using zero-knowledge proofs or staking/slashing mechanisms Think of it as giving AI agents a blockchain-based "passport" and credit score. **Key Development:** MetaMask's AI lead Marco DeRossi discussed the standard's evolution, which extends Google's Agent2Agent protocol with blockchain identity, reputation, and validation layers. The standard enables AI agents to discover each other and establish trust on-chain, creating what developers call "coordinated intelligence on Ethereum rails." @minara emerged as the top ERC-8004 agent in January, demonstrating early adoption of the standard.