Work · alternatives · 2026
24 alternatives to SBIX Certify
✨ Instant legal proof-of-existence for any document.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1BT
Find information, resources and relevant links for btproof.com. This domain may be for sale.
2013 · btproof.com · its alternatives →
- 2
Have a document certified in the Bitcoin blockchain
2015 · proofofexistence.com · its alternatives →
- 3
Dock Certs▲81Make any data fraud-proof and instantly verifiable
2023 · truvera.io · its alternatives →
- 4
- 5
DocProof▲2Cryptographic timestamps for documents — no file storage
Jul 2026 · docproof.app · its alternatives →
- 6
Proof.ink▲100Proven immutable data stored on the Steem blockchain
2019 · proof.ink · its alternatives →
- 7
- 8
TimeSeal▲116Restoring digital trust, one blockchain timestamp at a time
2023 · timeseal.com · its alternatives →
- 9
Claimby▲107Free legally-valid timestamps for your files, ideas & art.
2018 · claimby.com · its alternatives →
- 10
Publish your resume on-chain for instant verification
2021 · rezi.ai · its alternatives →
- 11SV
2022 · docs.planet.ink · its alternatives →
- 12
Docusign for provable deletion - anywhere, everywhere.
Apr 2026 · zombiedelete.com · its alternatives →
- 13
Versiobit▲83Archives your files, versioned and audit-proof by Blockchain
2023 · versiobit.com · its alternatives →
- 14
Prove that you said things before anyone else
Jun 2026 · yousaidthat.org · its alternatives →
- 15
- 16
- 17
- 18
Woleet▲73Bitcoin-anchored proof that documents are authentic
May 2026 · woleet.io · its alternatives →
- 19
TLDR, Let's Seal gives the finger to Adobe and every doc signing tool (docusign, google, etc) who pay to play with the Adobe Approved Trust List and then charge you for something that should be free. Currently even the person checking if a document/contract is sealed or code is authentic has to also be inside the same Adobe walled garden too. Verification, the part that should be free is the part everyone charges for. Thats the shape Let's Encrypt fixed for TLS, and I wanted the same thing for documents and files. The core idea therefore needed to go a bit beyond e signatures and i…
Jul 2026 · github.com · its alternatives →
- 20
Use the public blockchains to timestamp your files with indelible proof. Create non-fungible tokens (NFT) in Cardano.
2015 · stampd.io · its alternatives →
- 21
Prove your files existed before AI could rewrite them
Mar 2026 · timebinder.io · its alternatives →
- 22
- 23BC
2013 · vog.github.io · its alternatives →
- 24
From tx-hash to PDF proof — instantly.
Nov 2025 · app.transactproof.com · its alternatives →
Also compare
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 →