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.

“Send a notification before the delivery person arrives!”

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 2893887498

Proof data

Record hash (SHA-256)

640c0cb168fd02cc75f93cfe87661d66fb66f3bb64ea070db3020ce0b73ac654

Signature (Ed25519, base64)

LXrVNu084dHwPv270ai1D2NXcY0X2p9u/R38NbN+w37eaQPab7Sz/2S+/hHW8S/2Fu3wfOhCLXH7gfb3y8ziAA==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["640a92b21ab6ec8fbf21a02ad19b29697329eb4d9a3870b1097a9f57f1374ef8","6a3b8622e230ba3233b90f18899aab04a8a539323e9707b4bfcc69c56860d2aa","b67ec977e0fbac6c7d644bf478f885d72b264c48133b310bb5c630d8ea95b738","7f28e9594e4c5f4e19f1e40d70eff043e3846906db1f8142b76c5b7b16f9d579","51ae3c6b5871f144d0c39ef8c83e2f42bf5f7d77ac8eb82a2e6940f2bb44534f","1d971fa323acd941edb401c5a5e646e9b35d1c049da820f9e5e1b368235e060e","c6ae502878057df6022b66408a11d57e25a328100f5c2baec1ecf5fec0369971","fa49f16d6dd831e70ced3e8b8f2ffed79f246e7cfbf527f3a8c728a7257f5d53","f92eb2d7d3deffdadfc7b7873c5e03be8923dbb1f117280d2a65011895c20115","4c2a77a63a84e952250ede8a259a91713d6fd0312af208fffba8c0aacd5c073f","a1526f7707424579f3cf154e11a0fcfc12b079119608ef7e1327671f6d5c6084","ca212d39522aa6a7477953ed7c65b7eed667a9e6669e3b5f3bd86eae7b2d0765","d1960e2348cd4a71c41d10f1fdeb248b829ec3849e0b1a948157b58e7b767ef1","f2c4543851e26fd9d1e3721e592d66b00f142e537786e975d115c14b9cb61c0e","98191c82333f4385e47f318835e01d44ca8835262c6d0df40edfd5f6a4dc5c19"]

Anchored

2026-09-20

Public log entry

search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…

Expected log hash

90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"en","page":"theme:quero-delivery/communication/en","quote":"Send a notification before the delivery person arrives!","rating":3,"review_date":"2026-08-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","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 (2f068f3de56b…), 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.