Evidence Snapshot · 网页存证助手

1

目标链接 Target URL

粘贴你要存证的微博 / 网页地址。这个地址会写进证据摘要，但真正抗删除、抗篡改的是第 2 步的第三方存档——中立第三方副本。 Paste the Weibo / web page URL you want to preserve. It goes into the digest, but the deletion-proof, tamper-evident copy is the third-party archive in step 2.

存好后会得到一个短地址（形如 archive.ph/xxxxx），复制它，第 2 步要用。

⏳ archive.today 抓取微博通常要 30 秒到几分钟，有时会排队。别关掉那个标签页；若久无响应，稍后刷新该网址——多半已抓好。它若显示的是旧快照，点红色 “save” 强制重新抓取。等待期间可以先做第 3、4 步，拿到 archive.ph 地址后再回来填第 2 步。 archive.today usually takes 30 s–several minutes for a Weibo post, sometimes queuing. Keep that tab open; if it stalls, refresh the archive URL later — the capture has often finished. If it shows an old snapshot, click the red “save” to force a fresh one. You can do steps 3–4 while you wait.

2

第三方存档链接 Archive link(s)

把第 1 步在 archive.today 存好后得到的地址（形如 archive.ph/xxxxx）粘贴到下面的输入框。这是中立第三方保存的副本，原帖被删 / 账号被封都不影响它。可以加多条（archive.today、web.archive.org…）。 Paste the address you got from step 1 (like archive.ph/xxxxx) into the box below. It's a neutral third-party copy that survives deletion. Add more than one if you have them.

存档需要一定时间——可以先做第 3、4 步，等地址出来再回来粘贴，最后再生成时间戳。 Archiving takes a while — do steps 3–4 first, paste the link when it's ready, then generate timestamps.

3

页面留存文件 Page captures

把页面本身存下来的文件：截图（PNG），和 / 或 网页存档（MHTML，在页面上按 Ctrl+S，保存类型选「网页，单个文件」）。两样都放最好。截图时最好把浏览器地址栏也拍进去；不要裁剪 / 编辑 / 加水印。 Files that preserve the page itself: a screenshot (PNG) and/or a web archive (MHTML, Ctrl+S → "Webpage, Single File"). Both is best. Include the address bar in screenshots; don't crop / edit / watermark.

如果截图来自 archive.today：请对它的 Webpage 视图整页截图或存 MHTML，不要用 Screenshot 标签页——长微博会被它截断。文件只在你本机算哈希、不上传；请给每个文件标注来源（自己截的 / archive.today）。 If a capture comes from archive.today: use its Webpage view (full-page shot or MHTML), not the Screenshot tab — it truncates long posts. Files are hashed locally, never uploaded; tag each file's source.

把文件拖进来，或点击选择 · PNG / MHTML / PDF

每个文件都会算出一个指纹（SHA-256），用来证明文件之后没有被改动。 Each file gets a SHA-256 fingerprint — proof it isn't altered later.

4

采集时间 & 备注 Capture time & note

你看到该帖的时间（本地时区）when you saw the post (your local time) 备注（可留空）note (optional)

5

时间戳 Timestamp

给下面这串证据摘要盖上时间戳，证明它在某个时刻之前就已存在。摘要由前面几步的内容（网址、时间、存档链接、每个文件的哈希）算出，任何一处改动它都会变。两种时间戳原理不同、互为补充，默认都做。需要联网。 Timestamps the evidence digest below — proof it existed before a certain moment. The digest is derived from steps 1–4; any change alters it. Two independent mechanisms, both on by default. Needs network.

evidence_digest (SHA-256) —

canonical string（用于复算摘要的原始字符串）

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OpenTimestamps — 锚定比特币区块链，无需信任任何机构，时间精度较粗（约到小时）· Bitcoin-anchored, trustless, coarse time RFC-3161 — 由可信时间机构签发，精确到秒（经本站中转）· trusted-authority, to the second, via proxy

6

打包 & 备份 Bundle & back up

打成一个 ZIP：你上传的原始文件、manifest.json（清单）、evidence.txt（说明）、VERIFY.txt（如何独立核验）、时间戳文件。 One ZIP: your original files, manifest.json, evidence.txt, VERIFY.txt, and the timestamp proofs.

下载后，用「备份邮件」把这个 ZIP 作为附件发给自己——邮件服务器记录的收发时间是又一重时间证明。 Then attach the ZIP to the backup email and send it to yourself — the mail server's timestamp is one more layer of proof.