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.

“Very good app.”
Google Play · 5/5 · 2026-09-12

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 3140627354

Proof data

Record hash (SHA-256): d574eb1596d3a2b4b272955c5ee550c533b8396b28a5df4b85a68c16437d276b
Signature (Ed25519, base64): yMOOpNo4W5w6N7kBk7rA+HmKT0WfwpgkSXmjUdh0bdXykrrVsn2DbyzZxnPkUV03kvBCpr1XeUiWqWdYVSIfAg==
Merkle root: 7e5597bd3c162c8b6d828ec7450367f642ce11ee386de414b88376dcbb621ae5
Merkle path: ["d573eb3ab7c3ea4091f544e5643a495d2d0cfa7c556575de3d7e97c7bb6e33a0","766fb3fab5963294308aeb799a3fa75951f1e8d931078617b04772651484b078","f9c6f3be394fa2e60869403e3fb88065a04e394d442c6967d7a1a8af7a0feb9e","c52216597224f4983c95a4b70e6d2dd467dc401e1d818c7a4a8c06136f2cfadd","3011417f78922e315457d19a133cb9ca906bb80be3a3e447511623a39f65cf26","4d005712e41fae4f4a10913cfa578ce17e981add8c65e9e047447b09e3d55ce1","eab3582e72e5a6700e98a6aa8ea33f70cafc0e80b33d1539985d169262814b0e","73669008ccad6496e3173bd4ee6231a18d8a438d3f4012d1b6be435ace4cfbb8","2e0e7fd020628dee0108a6244b9bb3266191fb1c4d61c570175a586c75684d43","3ab359ff95d7a09cd097647e02244aa08fb19ee0388e39d39cf43c7cb8104b67","304fbb38e8aa0d3bcb468f4d2f61045923ed612383b7a9df5fd6562e6735c7c1","5a0d03f386cf2ce1b7e8699bdc38f59c9df83b99caad98658ca82702b7eff85d","3fa77f30bb4ae3659981dff326c7b1ead82f840aa815dc4f4cfaa848f2034350"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140627354 · entry 108e9186e8c5677acc98…
Expected log hash: 82c9bd063e624267c60865e2416c3d714724e2c3b18c4773424cdf17232dd6f1 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":"v1791432333296","kind":"published-quote","locale":"en","page":"brand:quero-delivery","quote":"Very good app.","rating":5,"review_date":"2026-09-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (7e5597bd3c16…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.