Alternatives

Products that do what ETN DataProof — Web3 does

Certify any data on blockchain for less than $0.0001

1. 1
   Bitproof▲113

   True certification in the bitcoin blockchain

   2015

2. 2
   Blocknify▲71

   Sign sensitive documents without sacrificing your privacy.

   2018

3. 3
   DL3ARN▲234

   Digitize & verify credentials in the blockchain

   2023

4. 4
   Proof.ink▲100

   Proven immutable data stored on the Steem blockchain

   2019

5. 5
   TokenTax▲227

   Crypto taxes made easy. TurboTax for cryptocurrency.

   2018

6. 6
   DataTrails▲111

   Content verification & misuse protection for Dropbox files

   2023

7. 7BT
   btproof - trusted timestamping on the Bitcoin blockchain▲75

   2013 · btproof.com

8. 8
   SBIX Certify▲13

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

   Dec 2025

9. 9
   Blockpit 1.0▲91

   Keep track of your crypto portfolio & taxes in one place

   2019

10. 10
    DocProof▲2

    Cryptographic timestamps for documents — no file storage

    Jul 2026 · docproof.app

11. 11
    HashProof▲5

    API for Verifiable Credentials

    Mar 2026 · hashproof.dev

12. 12
    yousaidthat.org▲63

    Prove that you said things before anyone else

    Jun 2026 · yousaidthat.org

13. 13
    Woleet▲73

    Bitcoin-anchored proof that documents are authentic

    May 2026 · woleet.io

14. 14
    TimeProof▲5

    Prove it existed. Permanently.

    Jan 2026

15. 15
    UVerify▲3

    Records tamper-proof fingerprints on the Cardano blockchain

    May 2026 · uverify.io

16. 16
    Incipite▲2

    Proof that holds up without asking anyone to trust you.

    27d ago · incipite.com

17. 17CP
    CryptoProof – post proofs to the Ethereum blockchain for free▲55

    2018 · cryptoproof.org

18. 18BC
    Bitcoinproof - Create a forgery-proof timestamp for your data▲8

    2013 · vog.github.io

19. 19BC
    Blockchain Certification Protocol▲24

    2015 · github.com

20. 20
    macOS data protection keychain for Electron apps▲24

    Hey HN, I've been working on Hansel [1] (an encrypted personal data store you can query with agents), and there wasn't a good way to use the modern macOS Data Protection Keychain. Electron's safeStorage [2] uses the legacy file-based keychain, which allows other apps/agents to query it with the `security` CLI. Not great when you have a dozen agents running in the background! The Data Protection Keychain is nice because it limits access via code-signing access groups and lets you set access rules like Touch ID and/or password. 1: https://hansel.so/ 2.…

    19d ago · github.com

21. 21
    DocVerify — CYBERPUNK NOTARY▲3

    Blockchain notary for documents, photos & Notion – $0.50

    Jun 2026

22. 22
    Chain Proof▲1

    Blockchain transactions to professional PDF documents

    Jan 2026

23. 23DN
    DocStamp – Notarize documents on the Ethereum blockchain▲8

    2017 · docstamp.io

24. 24
    ProofDeed — Blockchain Certification▲2

    Court-admissible blockchain document certification

    Jun 2026 · proofdeed.com

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