Life & fun · alternatives · 2026

24 alternatives to Proof of Existence

Have a document certified in the Bitcoin blockchain

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 Existence launched in 2015; newer entries below may have overtaken it.

1. 1
   Bitproof▲113

   True certification in the bitcoin blockchain

   2015 · its alternatives →

2. 2
   Blockchain Demo▲862

   Visual demonstration of blockchain technology

   2017 · blockchaindemo.io · its alternatives →

3. 3
   Woleet▲73

   Bitcoin-anchored proof that documents are authentic

   May 2026 · woleet.io · its alternatives →

4. 4
   BlockSign▲79

   Sign Your Docs Digitally Using Bitcoin

   2014 · blocksignit.com · its alternatives →

5. 5
   Do You Need A Blockchain?▲85

   Clearing the confusion for once and all

   2021 · its alternatives →

6. 6
   SBIX Certify▲13

   ✨ Instant legal proof-of-existence for any document.

   Dec 2025 · certify.sbix.io · its alternatives →

7. 7
   Civic Token▲185

   Access to identity verification via the blockchain

   2017 · its alternatives →

8. 8
   Blockusign▲93

   Secure Document Signing & Verification Powered by Blockchain

   2018 · blockusign.co · its alternatives →

9. 9VI
   Verifying integrity of a website using the Blockchain and JavaScript▲6

   2017 · sealed.website · its alternatives →

10. 10
    Proof.ink▲100

    Proven immutable data stored on the Steem blockchain

    2019 · proof.ink · its alternatives →

11. 11
    Blockchain Demo▲57

    Visual demonstration of blockchain technology

    2018 · blockchaindemo.io · its alternatives →

12. 12
    The Business Blockchain▲91

    Promise, Practice, and Application of the Next Internet Tech

    2016 · amazon.com · its alternatives →

13. 13
    ZeroNet▲119

    Decentralized websites using Bitcoin cryptography

    2015 · zeronet.io · its alternatives →

14. 14
    Proof-of-work difficulty explained▲7

    Blockchain based cryptocurrency proof-of-concept built with Elixir. Feedback welcome - coincoin/apps/blockchain/docs/difficulty.md at master · robinmonjo/coincoin

    2017 · github.com · its alternatives →

15. 15
    Bitstamped▲69

    Prove that file existed today

    2014 · its alternatives →

16. 16
    The Case for Bitcoin▲63

    Bitcoin and the Decentralized Future

    2015 · amazon.com · its alternatives →

17. 17BT
    btproof - trusted timestamping on the Bitcoin blockchain▲75

    Find information, resources and relevant links for btproof.com. This domain may be for sale.

    2013 · btproof.com · its alternatives →

18. 18
    Bonafide▲7

    Proof of identity for Bitcoin transactions.

    2014 · bonafide.io · its alternatives →

19. 19
    Decentproof▲79

    Proof that your multimedia files haven't been modified

    2022 · github.com · its alternatives →

20. 20
    Stuff You Should Know - How Bitcoin Works▲60

    World's 1st decentralized, anarchistic all-digital currency!

    2015 · its alternatives →

21. 21
    Dock Certs▲81

    Make any data fraud-proof and instantly verifiable

    2023 · truvera.io · its alternatives →

22. 22
    LockChain▲10

    Immutable Identity and Data Verification on Bitcoin

    2024 · play.google.com · its alternatives →

23. 23
    BlockScribe▲70

    Leave your mark on the Bitcoin or Ethereum blockchain

    2022 · blockscribe.net · its alternatives →

24. 24
    The Ledger of Unique Things▲6

    #blockchain #tokenization #recognition #cryptocurrency #web3

    2022 · 3dpass.org · its alternatives →

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 →