Collection Mint Date Verifier

WHAT IT DOES

Collection Mint Date Verifier is your NFT authenticity and provenance tool that verifies and displays mint dates for NFTs across collections. It automatically detects collection contract addresses and token IDs from marketplace pages, then queries the blockchain for mint transaction timestamps and block numbers. The tool displays each NFT's mint date and age relative to collection launch, shows the mint order rank (1st, 10th, 100th, etc.) within the collection, and compares mint dates to current floor prices to identify early mint value appreciation. It provides visual age indicators with color coding—Genesis (purple), Early (blue), Mid (orange), Late (red), and Recent (green)—and tracks mint date distribution across the entire collection.

WHERE IT RUNS

This script runs on all major NFT marketplaces including OpenSea (opensea.io), Blur (blur.io), LooksRare (looksrare.org), Zora (zora.co), Rarible (rarible.com), and Foundation (foundation.app). It works on collection pages, individual NFT detail pages, and any page displaying NFT cards with token IDs.

HOW TO USE

Install the script through the BotGentz userscript manager. Click "Connect Wallet" to link your EVM wallet extension—this enables blockchain queries for mint transaction data. Navigate to any NFT collection page or item detail page on a supported marketplace. The tool automatically detects the collection contract address and token IDs, then verifies mint dates for visible NFTs. Each NFT receives a color-coded age badge and rank indicator displayed directly on the card. The panel shows verification count, cache size, age distribution statistics, and earliest/latest mint dates. Use "Verify Mint Dates" to manually trigger verification, or enable auto-verify for automatic detection.

BLOCKCHAIN-BASED MINT PROVENANCE ENGINE WITH AGE CATEGORIZATION

Unlike simple metadata readers that just display what's already visible, this tool implements a blockchain-based mint provenance engine that queries the actual blockchain for mint transaction timestamps. The engine extracts contract addresses and token IDs from marketplace DOM elements, then uses the connected wallet's RPC capabilities to fetch transaction history and block timestamps. The mint date is correlated with the collection's launch date to calculate the NFT's age relative to the collection's lifecycle. Each NFT's mint order rank is determined by comparing its mint timestamp to all other tokens in the collection, identifying whether it was in the first 1% (Genesis), first 10% (Early), mid-range, late, or most recent batch. The age categorization uses percentile-based thresholds that adapt to collection size, providing context-aware labels that indicate the NFT's position in the collection's minting history. All verified data is cached locally to minimize RPC calls and improve performance across browsing sessions.

THE PANEL

The floating panel is fully draggable and snap-to-edge enabled. You can collapse it to a compact bubble when not in use, resize it to your preferred dimensions, and it remembers its position across page loads using persistent storage. Press Escape to quickly dismiss the panel. The panel displays contract address, verification count, cache size, age distribution statistics, and earliest/latest mint dates.

PLEASE NOTE

This script requires the free BotGentz extension to be installed in your browser—it does not run as a standalone extension. You also need a real EVM wallet extension already installed and configured for blockchain queries. The tool cannot verify mint dates for collections that use custom minting contracts without standard event logs and relies on the page exposing contract address and token IDs in a detectable format. Block timestamps may have minor inaccuracies and some collections may not have accessible mint transaction data. No user data is collected or transmitted—all verification cache stays local in your browser storage. The tool provides analytical insights for NFT evaluation but does not constitute investment advice.