Alternatives

Products that do what ProofDeed — Blockchain Certification does

Court-admissible blockchain document certification

1. 1
   Bitproof▲113

   True certification in the bitcoin blockchain

   2015

2. 2
   DL3ARN▲234

   Digitize & verify credentials in the blockchain

   2023

3. 3BC
   Blockchain Certification Protocol▲24

   2015 · github.com

4. 4
   Blockusign▲93

   Secure Document Signing & Verification Powered by Blockchain

   2018

5. 5
   Autoproof▲247

   Protect your company codebase

   2023

6. 6
   Woleet▲73

   Bitcoin-anchored proof that documents are authentic

   May 2026 · woleet.io

7. 7
   Blocknify▲71

   Sign sensitive documents without sacrificing your privacy.

   2018

8. 8
   Dentity▲195

   Build trust online

   2024

9. 9
   TxHash Blockchain as a Service▲120

   Cryptocurrency and smart contract event notifications

   2018

10. 10
    Chain Proof▲1

    Blockchain transactions to professional PDF documents

    Jan 2026 · chainproof.app

11. 11
    BlockRight▲102

    Decentralized copyright registration platform

    2019

12. 12
    Blockchain Home Registry▲113

    A web3 real estate platform to claim the NFT of your home

    2022

13. 13
    DeepFake Safety▲11

    On-chain proof that a file is yours.

    Oct 2025

14. 14
    SBIX Certify▲13

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

    Dec 2025

15. 15
    yousaidthat.org▲63

    Prove that you said things before anyone else

    Jun 2026 · yousaidthat.org

16. 16BT
    btproof - trusted timestamping on the Bitcoin blockchain▲75

    2013 · btproof.com

17. 17BA
    Blocksign, a Bitcoin service for legally signing any document▲17

    2014 · blocksignit.com

18. 18MD
    Make domain verification as easy as verifying an email or phone number▲86

    Hi HN, This is a project [1] I've been working on for a little while and I'm interested in your feedback and point of view. Many of us would have verified a domain name by pasting a string into a DNS TXT record. Some providers ask us to store this DNS TXT record at a domain using a DNS label like "_provider" e.g. _provider.yourdomain.com, and some providers ask that you do it at the zone apex (God help us [2]). The Domain Verification protocol stores a DNS TXT record at a DNS name derived from a hashed "verifiable identifier" (think email, telephone, DID), enabling anyone that can prove…

    2023 · domainverification.org

19. 19WA
    WordLines – A zero-knowledge proof-based blockchain puzzle game▲83

    2022 · github.com

20. 20SI
    Stampd.io - A document blockchain stamping service▲32

    2015 · stampd.io

21. 21
    TransactProof▲3

    From tx-hash to PDF proof — instantly.

    Nov 2025

22. 22
    GEAMC▲38

    A border-less chain that stores tamper-proof certificates

    2025

23. 23VI
    Verifying integrity of a website using the Blockchain and JavaScript▲6

    2017 · sealed.website

24. 24
    Aluchin▲2

    Tamper-proof document verification on the blockchain

    Feb 2026 · aluchin.com

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