Historical Exchange Index
A reviewed registry of active, limited, inactive, dead, merged, acquired, and rebranded crypto exchanges.
Open projectPublic data · evidence links · explicit uncertainty
Small independent tools for following how systems change.
BadJoke-Lab builds archives, registries, dashboards, and monitoring tools. The projects focus on historical change, current operating state, source traceability, and the gaps that remain unresolved.
Current projects
Archives, observatories, and utilities
Each public project has its own scope and methodology. Projects are grouped below by their primary purpose.
Ledger Series
Archives & registries
Reviewed records of lifecycle changes, operating states, incidents, evidence, and unresolved outcomes.
Stable or Gone
A historical stablecoin register connecting lifecycle state, organizations, events, reserve structures, evidence, and known unknowns.
Open projectCrypto Yield Archive
An evidence-based history of crypto lending, Earn, and yield platforms, including insolvencies, restructurings, repayments, shutdowns, and customer outcomes.
Open projectBridge Incident Registry
An evidence-based registry of cross-chain bridge incidents and their aftermath, including recoveries, reimbursements, reopenings, migrations, and shutdowns.
Open projectMinted & Gone
A historical archive of NFT marketplaces, material events, and supporting evidence.
Open projectWallet Lifecycle Registry
An evidence-backed historical registry of cryptocurrency wallets, products, lifecycle changes, security incidents, vulnerabilities, fixes, migrations, and supporting evidence.
Open projectゆくえシリーズ — 祭のゆくえ
The first public site in the Yukue Series, recording the current state, occurrence history, changes, relations, and evidence for Japanese festivals.
Open projectCrypto Card Lifecycle Registry
A historical registry of crypto card programs, infrastructure providers, lifecycle changes, material incidents, relationships, and supporting evidence.
Open projectMeasured surfaces
Observatories & dashboards
Public interfaces for examining recorded activity, comparisons, history, and data availability.
ViewLoom
Twitch and Kick observation through heatmaps, daily audience flow, rivalry charts, history, and data-status reporting.
Open projectWorld Chain / WLD Dashboard
A data dashboard for selected World Chain and WLD activity.
Open projectAI Model Scoreboard
A compact public scoreboard for comparing recorded AI-model results.
Open projectFocused tools
Utilities & directories
Single-purpose tools and directories for discovery, comparison, creation, and bounded checks.
CryptoPaymap
A directory for discovering places and services associated with cryptocurrency payments.
Open projectCryptoFeeScope
A focused tool for inspecting and comparing cryptocurrency fee conditions.
Open projectXRPL Sell Impact Checker
A bounded checker for estimating sell impact using XRPL market information.
Open projectdoll
Local-first, user-owned continuity infrastructure for personal AI with portable state, recovery boundaries, and model-independent operation.
Open projectWhere Horses Run / 競馬どこ？
A global horse-racing calendar, timetable, official-source index, country guide, racecourse index, and glossary.
Open projectNANKOBUN SCALE
A browser tool for measuring photographed objects using a photographed reference as an arbitrary visual unit.
Open projectGenerative Rendering Studio
A browser-first studio for transforming images, vector graphics, text, video, procedural geometry, audio, and data into alternative visual representations and motion.
Open projectProcedural Instrument Lab
Experimental browser-based procedural instruments whose meaningful geometry, mechanism state, and playback behavior are generated in code.
Open projectOperating principles
What the projects try to preserve
Source traceability
Material claims should lead back to identifiable sources rather than anonymous summaries.
History before snapshots
Current state matters, but so do migrations, closures, incidents, rebrands, restrictions, and unresolved transitions.
Explicit uncertainty
Unknown, incomplete, disputed, and not-yet-reviewed information should remain visible instead of being silently filled in.
No implied recommendation
Registries and dashboards describe recorded conditions. They are not investment, safety, or legal recommendations.
About the lab
An independent, small-scale publishing and software project.
BadJoke-Lab is maintained independently. Repositories, issue trackers, and public methodology pages are used to document implementation and correction work. Project-specific coverage and limitations are described on each site.