Dev tools · alternatives · 2026
24 alternatives to Proof Of Time Travel
Using blockchain to prove time travel
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Proof Of Time Travel launched in 2018; newer entries below may have overtaken it.
- 1
TimeSeal▲116Restoring digital trust, one blockchain timestamp at a time
2023 · timeseal.com · its alternatives →
- 2
Blockchain Demo▲862Visual demonstration of blockchain technology
2017 · blockchaindemo.io · its alternatives →
- 3
CHAINPOINT▲72Anchor an unlimited amount of data to multiple blockchains.
2017 · chainpoint.org · its alternatives →
- 4
Time Ledger▲323Manage your time like you manage your money.
Feb 2026 · sobo-link.vercel.app · its alternatives →
- 5BT
Find information, resources and relevant links for btproof.com. This domain may be for sale.
2013 · btproof.com · its alternatives →
- 6
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Time Travel▲85Simple, beautiful and interactive world clock.
2019 · time-travel.app · its alternatives →
- 8
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Note that can be changed by anyone, but only once an hour
2022 · its alternatives →
- 11
Visual demonstration of blockchain technology
2018 · blockchaindemo.io · its alternatives →
- 12
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CryptoProof ran from 2018 to 2021, as a free timestamping service on Ethereum.
2018 · cryptoproof.org · its alternatives →
- 15
Claimby▲107Free legally-valid timestamps for your files, ideas & art.
2018 · claimby.com · its alternatives →
- 16
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Use the Blockchain to timestamp files with indelible proof.
2019 · stampd.io · its alternatives →
- 18
Finding the balance between humans and machines has been the thread through my career. I always had a thing for AI and couldn't wait for it to actually deliver on what was promised. Now it does, and it's more important than ever that humans and machines keep working well together. AI makes creation trivial. Text, code, design, strategy, in seconds. But one thing AI does not create: independently verifiable proof of when something existed. Reproducing is now cheaper and easier than creating. Chronology becomes contestable at the moment it matters most. The universal problem was known. I…
Mar 2026 · umarise.com · its alternatives →
- 19
- 20AT
2017 · timeboundapp.com · its alternatives →
- 21
Versiobit▲83Archives your files, versioned and audit-proof by Blockchain
2023 · versiobit.com · its alternatives →
- 22
Prove that you said things before anyone else
Jun 2026 · yousaidthat.org · its alternatives →
- 23
Best app for earning free Token with your travel plan.
2019 · triipme.app.link · its alternatives →
- 24
An open-source Bitcoin mempool visualizer and blockchain explorer.
2021 · bits.monospace.live · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →