Tracr – Email-like communication using usernames and #hashtags
Tracr is the leading digital platform for tracing natural diamonds from source at scale, making their journey visible through secure provenance records.
Tracr – Email-like communication using usernames and #hashtags launched on January 29, 2015 with 5 votes and more than 50% of that year's launches. The site was still online in September 2026, 11 years on.
What it does
Every diamond on Tracr carries a record of its journey - from rough to polished. Our blockchain-based platform doesn't just record origin: it enables participants to showcase their own responsible and environmental standards behind each natural diamond. Transparency you can see, values you can trust. Enter your diamond's unique ID to access The Diamond Experience: the complete record of your natural diamond’s journey from mine to your hand. See its origin, reports, and every recorded step along the way. Your provenance record, always accessible. Blockchain technology meets diamond industry standards. Every diamond on Tracr is registered at the source, creating an immutable record that can…from tracr.com
Does a similar job
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TracciaAug 2026 · traccia.ai · ▲197AI applications are becoming agents, which has started to take autonomous decisions. There are plenty of tools and platform available to trace, and observe what an agent or llms calls does. They are good in what they do, but tracing and observability isnt enough for AI agents era. We need a solution that can help you observe, evaluate, create run time policies to govern and finally audit the actions of the agent. We built Traccia to solve this problem. The good part, all of these can be achieved by just writing few lines of code. Traccia has an open-sourced sdk that can work with your…




Tracium.aiMar 2026 · tracium.ai · ▲70Hi everyone, thanks for checking out tracium. At work I needed some clarity on how much each agent costs us and how they perform on production so I started looking at existing solutions for this such as LangSmith and LangFuse. Honestly, they felt like they are overcomplicated to integrate and that there should be a simpler solution so I decided to build Tracium. Tracium keeps track of every single AI API call that you make to an LLM provider, with this you can see traces, spans, I/O, tokens in/out, latency. You can compare during A/B testing, see usage from each customer and…
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