Show HN: 免费抗量子时间戳 API（双重签名与比特币）
1 分•作者: sasasavic•7 个月前
SasaSavic.ca 最近推出了一个公共的加密时间戳服务，旨在即使在后量子时代也能保持可验证性。
该平台使用 SasaSavic Quantum Shield™，这是一种结合了经典和后量子安全性的双签名协议。
每个提交的 SHA-256 哈希值都会：
• 使用 ECDSA P-256 和 ML-DSA-65（根据 NIST FIPS 204）进行双重签名
• 通过 OpenTimestamps 锚定到比特币区块链
• 记录在公开、可验证的每日账本中
API（测试版，无需身份验证）：
[https://sasasavic.ca/beta-api/](https://sasasavic.ca/beta-api/)
示例 curl 请求：
curl -X POST [https://sasasavic.ca/api/v1/beta/timestamp](https://sasasavic.ca/api/v1/beta/timestamp)
-H "Content-Type: application/json" -d '{"hash":"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"}'
验证和账本：
[https://sasasavic.ca/verify](https://sasasavic.ca/verify)
[https://sasasavic.ca/ledgers/](https://sasasavic.ca/ledgers/)
目标是在保护用户隐私的同时，使加密证明具有抗量子特性并易于访问——只有哈希值会离开客户端。
欢迎开发人员、审计员和研究人员对 PQC 集成和验证速度提供反馈。
更多详细信息和文档：
[https://sasasavic.ca/quantum-shield/](https://sasasavic.ca/quantum-shield/)
—— SasaSavic.ca 团队
查看原文
SasaSavic.ca recently launched a public cryptographic timestamping service designed to remain verifiable even in a post-quantum world.<p>The platform uses SasaSavic Quantum Shield™, a dual-signature protocol combining classical and post-quantum security.<p>Each submitted SHA-256 hash is:
• Dual-signed with ECDSA P-256 and ML-DSA-65 (per NIST FIPS 204)
• Anchored to the Bitcoin blockchain via OpenTimestamps
• Recorded in a public, verifiable daily ledger<p>API (beta, no auth required):
<a href="https://sasasavic.ca/beta-api/" rel="nofollow">https://sasasavic.ca/beta-api/</a><p>Example curl request:
curl -X POST <a href="https://sasasavic.ca/api/v1/beta/timestamp" rel="nofollow">https://sasasavic.ca/api/v1/beta/timestamp</a>
-H "Content-Type: application/json" -d '{"hash":"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"}'<p>Verification and ledgers:
<a href="https://sasasavic.ca/verify" rel="nofollow">https://sasasavic.ca/verify</a><p><a href="https://sasasavic.ca/ledgers/" rel="nofollow">https://sasasavic.ca/ledgers/</a><p>The goal is to make cryptographic proofs quantum-resistant and accessible, while preserving user privacy — only the hash ever leaves the client side.<p>Feedback from developers, auditors, and researchers on PQC integration and verification speed is welcome.<p>More details and documentation:
<a href="https://sasasavic.ca/quantum-shield/" rel="nofollow">https://sasasavic.ca/quantum-shield/</a><p>– The SasaSavic.ca Team