Hi Nervos community,
I’d like to introduce VeriCell.net (https://vericell.net), live on mainnet: a proof-of-existence and integrity service that anchors SHA-256 file manifests in live cells.
A hash proves a file is untampered — but not when it existed, who published it, or where to find the current version. VeriCell uses the cell model to solve all three:
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Live-cell versioning — a proof is a live cell locked to your wallet. Release a new version and the old cell is consumed into a new one; the transaction chain is the version history.
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Timestamp and ownership — the block header fixes the time, the lock proves the owner. No accounts, no logins.
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Locked, not spent — consume the cell and the CKB returns to you.
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Backward hash search — any SHA-256 finds its project, version, and file path.
Files never leave your machine — hashing happens locally in the browser; only the manifest goes on-chain. Automation via CLI, REST API, and CI/CD (e.g. anchor every GitHub release).
Try it: drop a file on https://vericell.net/verify — no wallet needed. Creating proofs works with JoyID. Open source, built with CCC: GitHub - psawyerberlin/vericellnet: Proof of authorship, integrity and time for any digital project, anchored in a live cell on Nervos CKB. · GitHub
I’ve also opened a PR to add VeriCell.net to ckbdapps.com: https://github.com/CKBFansDAO/ckbdapps/pull/7 — all checks have passed, and the Netlify deploy preview shows the listing rendering correctly: https://deploy-preview-7–ckbdapps.netlify.app/ecosystem
Feedback very welcome.
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Quick update: the project is now branded VeriCell.net (repo moved to GitHub - psawyerberlin/vericellnet: Proof of authorship, integrity and time for any digital project, anchored in a live cell on Nervos CKB. · GitHub ), and there’s a community group at Telegram: View @VeriCellnet . The ckbdapps listing PR has been polished accordingly — live preview here: CKBdapps - One-Stop exploring of Nervos Ecosystem. . Feedback still very welcome — and if any of the ckbdapps maintainers see this, I’m happy to adjust anything in PR #7 to fit your standards.
Hi @psawyerberlin,
VeriCell.net 这个想法很有意思——用 live cell 的消费/重建来表达版本历史，用 lock 证明所有权、block header 锁定时间戳，这个思路很好地利用了 CKB Cell Model 的特性，而不是简单地把哈希写上链了事。
PR #7 我已经看到了，正在 review，非常感谢你的贡献 
。如果需要根据 ckbdapps 的规范做任何调整，我会在 PR 里跟你同步。
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Hi @yixiu.ckbfans.bit,
Thank you for taking the time to review — and especially for engaging with the design itself. You’ve summarized it exactly right: the goal from the start was to build something that only makes sense because of the Cell Model — the consumption chain as version history, the lock as ownership, the header as time — rather than a hash anchor that could live on any chain.
I’ll watch PR #7 and will turn around any adjustments quickly — happy to follow whatever standards ckbdapps has for listings.
While browsing the ecosystem list I also noticed a few dapp links that no longer work (e.g. ckbfiber.net, imkey.store, utxoa.org). If I can support with some clean-up, let me know — if you know the authors, I could also reach out to them to check whether the links should be updated.
Thanks again — looking forward to seeing VeriCell.net in the ecosystem list.
BR, Patrick
(Translated with DeepL)
你好 @yixiu.ckbfans.bit，
感谢你抽出时间进行评审——特别是对设计本身提出的见解。你的总结非常准确：从一开始，我们的目标就是构建一个只有在“细胞模型”（Cell Model）框架下才有意义的系统——将消费链视为版本历史、将锁视为所有权、将头部视为时间——而不是一个可以存在于任何链上的哈希锚点。
我会关注 PR #7，并迅速处理任何调整——很乐意遵循 ckbdapps 针对列表的任何标准。
在浏览生态系统列表时，我还注意到几个 dapp 链接已无法访问（例如 ckbfiber.net、imkey.store、utxoa.org）。如果我能协助进行一些清理工作，请告诉我——如果你知道这些链接的作者，我也可以联系他们，确认是否需要更新链接。
再次感谢——期待在生态系统列表中看到 VeriCell.net。
此致，Patrick
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Thank you for the review and merge, @yixiu! Happy to be part of the list — and the clean-up offer stands anytime.
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感谢你为 CKB 社区创造并留下这些有价值的东西。我认为这样的探索不仅是一个作品，也为后来的人提供了可以学习、思考和继续构建的基础。
我尤其欣赏你能够如此精准地找到一个契合 Cell Model 的应用场景，并把底层理念真正转化成了具体而有创造力的东西。ckbdapps 上将会持续关注来自社区成员的项目，并将这些有创意的、社区驱动项目及时列入。
期待看到你接下来更多的尝试和作品。继续探索、继续创造——生态里需要更多像你这样愿意去发现 CKB 可能性的人。
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