Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Allow custom reminder times for appointments (in min, h, d, w).”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 3637396099

Proof data

Record hash (SHA-256)

1facaab3e721ec103b3f074a240bd0970933387c72266b67a4b6225a49173bb8

Signature (Ed25519, base64)

I13QZ01INvn0HjPYgcmWT7gQd0Tfgm1yJofy/+YWqDOhUZauArh7Zx1qo+kdGD59Y/ofEvC53RoSjZwTWv5SCQ==

Merkle root

8f2c2f05f88c969dd850965729c24c32c52cc6403a26008c0bd53784ae27507c

Merkle path

["1fac36b3e319b3a6f77ee5219420ab5d3d7436de665bb65502bf20944d08d22a","2874dd75f4177fd6168ff953f12a78958848524b0321b1d35c5b724329eb89aa","af22e931dfdfa3138f4312c2e91ea090d81109351640efd5b5996c784f3a0e75","f226effd366f79cea6505b7f85857c1ca2d83c016e57e561d90f47e542ea9c9a","b251bf90c856a71af0d565b5bcab252a329611e663bf6035338de08f908b4a75","a5c4f273ed4c522771f75db4dfdbab0de2c25db78619d5643021dbfd2b10472c","fc48f155bda5eaf531422285ab3086145f1c2b671151b49cb8eb18d32c895d20","60bdce96c5b92f48e18327b76e1cd2c4b75197b938e024607b66b6fe5a1b293e","9165f7abe3fe8aff7cda0aa8063dd4f6f7b2d873e94450fc1acd30f76dbc8d58","cbd52e29019723649e9aa1583f0c1d27a94d55b60e1bfe5adb7b0bea7fd0abb3","221fbf3ab0bf2a49eeb71bccd46c26156ece3b201beac03021cec98fda89461a","a4032a234c9f4713654e6a84ab5dbda9df3bf27d86ebb8ee6e761e0263dc017e","1cc438269a1190f75ec95ac8b661278f7f1bcbf699a11b5ba685e615e03039c4"]

Anchored

2026-11-02

Public log entry

search.sigstore.dev, log index 3637396099 · entry 108e9186e8c5677a241a…

Expected log hash

e2625e03ca8112d902567b372759b1b1cfdf1591befeb5c03dac093cdf478b4a The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1793587598614","kind":"published-quote","locale":"en","page":"brand:tuta","quote":"Allow custom reminder times for appointments (in min, h, d, w).","rating":4,"review_date":"2026-08-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (8f2c2f05f88c…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.