账本存证
储值与筹码的账本每天封存为一个指纹，与前一天的指纹相连，并通过 OpenTimestamps 在比特币区块链上加盖时间戳。任何人都可以核对已公布的历史没有被改动；你也可以核对自己的每一笔记录都在其中。基于 Orbit。
公开哪些内容
- 每天：当天全部账本记录的指纹、前一天的指纹，以及记录条数。
- 每个指纹的时间戳证明，通常在一天内于比特币区块中确认。
绝不公开：姓名、邮箱、账户 ID、金额或余额。每条记录以私密化名计算指纹，外部无法将其与账户对应。
核对证明文件
选择在这里下载的证明文件（.json）。文件不会上传。
你的记录
每日指纹
存证 2 · 2026-09-28
一天中的一部分：当天其余部分在下一个存证中。
存证 1 · 2026-09-27
如何核对
使用开源的 OpenTimestamps 客户端：
- 把某个存证的记录与时间戳证明下载到同一个文件夹。
- 安装客户端：
pip install opentimestamps-client
- 查看证明内容：
ots info credits-anchor-2.txt.ots
- 等待比特币区块期间，获取完整证明（会更新该文件）：
ots upgrade credits-anchor-2.txt.ots
- 确认后，用你自己的比特币节点核对：
ots verify credits-anchor-2.txt.ots
- 没有节点时：客户端会列出区块号和要在任一区块浏览器中核对的值：
ots --no-bitcoin verify credits-anchor-2.txt.ots
- 每条记录的「prev」行是前一条记录的 SHA-256：
shasum -a 256 credits-anchor-1.txt # macOS sha256sum credits-anchor-1.txt # Linux
- 你某条记录的证明是一个 JSON 文件。可在本页核对，也可按下面的规范手动核对。
规范
规范以英文为准。
Lines. One line per posting of every entry created in the period (both currencies; test-account entries excluded):
yzc-leaf-v1|<entry id>|<account pseudonym>|<USD or CHIPS>|<amount>|<balance after>|<created at>|<idempotency key hash>
- Amounts are integers: micro-US-dollars for USD (1 USD = 1,000,000), whole Chips for CHIPS; negative for money leaving the account.
- The account pseudonym (32 hex) and the idempotency key hash (64 hex) are HMAC-SHA-256 values under a private key, so they cannot be linked to an account from outside.
- Lines are sorted by created at, then entry id, then pseudonym.
Tree. Line hash = SHA-256(0x00 ‖ UTF-8 line). Node = SHA-256(0x01 ‖ left ‖ right). Pairs are formed left to right on each level; an odd last node moves up unchanged. An empty period has the fingerprint SHA-256 of nothing (e3b0c442…b855). A proof path lists, from the line upwards, each sibling and the side it is on (L or R).
Record. The text that is timestamped, UTF-8 with a newline after each line:
YunZheng Credits ledger anchor v1 seq: <n> window: <start>/<end> entries: <entries> leaves: <lines> merkle_root: <fingerprint of the entries> prev: <anchor fingerprint of seq n-1, or 64 zeros>
Anchor fingerprint = SHA-256 of the record. It is submitted to several public OpenTimestamps calendars; the .ots file is the combined proof. Periods are consecutive, each within one UTC day.