Before you share it, Certelo it Create timestamped proof in minutes. No account required.

Joined April 2026
We’re officially opening the doors to the Certelo Closed Beta. Our first testers have received their invitations and are now getting early access to Certelo, helping us test, refine, and strengthen the platform before launch. The public Early Release is coming soon. Stay tuned!
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Your pitch deck is often the first written record of your core thesis and architecture. Timestamp each version locally before sending it out to investors: certelo.io/blog/importance-o… #VentureCapital #Founders
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When an AI output is overridden or approved, internal database logs can be edited later. Anchor human review records locally without exposing personal data: certelo.io/blog/human-review… #AIGovernance #EUAIAct
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File "date modified" metadata is easy to alter. A SHA-256 hash paired with a blockchain timestamp proves whether a file changed down to a single byte. certelo.io/blog/detecting-an… #DataIntegrity #ProofOfExistence
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Local SHA-256 hashing + public blockchain anchoring = verifiable proof a file existed at a specific time, with zero file uploads. Here is how it works: certelo.io/blog/how-does-blo… #ElectraProtocol #TechExplained
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Certelo is now LIVE! Prove when your files existed with privacy-first blockchain timestamping. 🔒 Read the press release 👇 🔗 certelo.io/blog/press-releas… 🌐 certelo.io
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A proof service can close. A platform can disappear. A website can change. But the need to prove something existed at a specific moment never goes away. The bigger question is: Will that proof still matter later? certelo.io #DigitalProvenance
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The need for proof is permanent. That’s why resilience matters as much as convenience.
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Some creative works become cultural icons. But even iconic work has an origin. A source image. A reference. A trail. When creation becomes valuable, provenance becomes part of the conversation. certelo.io #DigitalProvenance
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Creative work is not just about expression. It is also about where it began.
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We create. We revise. We rename. We overwrite. Then one day, the exact version matters. Not just the idea. Not just the file. The specific file, at a specific moment. certelo.io
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Everyone has had a folder like this. The question is: which version can you actually trace back in time?
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In science, recognition doesn't always arrive with discovery. Rosalind Franklin's work, including Photo 51, proved vital to one of biology's greatest breakthroughs. Sometimes evidence exists long before its significance is recognized. certelo.io #ResearchIntegrity
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Being important and being recognised are not always the same thing. The record matters even before the recognition does.
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You created something six months ago. Tomorrow, someone challenges you. What would you trust most? ▶️A memory ▶️A screenshot ▶️A file date ▶️Independently verifiable evidence Not all proof feels the same. And not all proof survives scrutiny the same way. certelo.io
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The more important the file becomes, the more important the quality of the proof becomes too.
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Before Facebook became one of the world's biggest companies, its origins sparked a major dispute. It wasn't just about the idea anymore, it was about what each side could prove, and when. When stories diverge, records matter. certelo.io
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This is not about deciding who was right. It is about something more universal: When an idea becomes valuable, early messages, files, versions and records can suddenly matter a lot.
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A founder sends a deck. A consultant shares a concept. A startup presents an early prototype. Weeks later, the idea is circulating. Months later, memories are different. What do you still have from before the meeting? certelo.io
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Most disputes don’t begin in court. They begin when people remember the same conversation differently.
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