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.

“Great, and the receipt scanner has improved significantly over time.”
Google Play · 4/5 · 2026-05-19

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 2515345787

Proof data

Record hash (SHA-256): 13a313779fd93e372aa3b974d1812afd1b9013b4d22c5543d52e5591ea6e2040
Signature (Ed25519, base64): TiufdFEeqOXRDkXflHbCTOsSRpjSVORSKgaeZ0uV++ZrFMsTi/lA7Z+vuSjV08oRfTPtscbTi04OMmru0NCcBQ==
Merkle root: e61c2598d4d03770603e24740bcc427581e87bcbeea2e56dc34fd81a9f496465
Merkle path: ["139fa08c4916cee8b18724369944563cb315c3c21753ef6d3f24590f674f3edc","732bd22311252d47ba17562ea9ce6b1c966ef55c5acd0165ea96dac312de16b8","3018a3ce8f34d43b9d3f7885f3063255cb9dfdf520bd7c06699a718b4382efe5","93c1d2a7a72b4806a5748162663b451248925ea7e918a3699e8972d9fa63395b","b8e4d74be51b37db0f420c898b80a304cb3bc15bb6ce3b9fdea486493aa6f042","3c2c24afa572bfba6703a3822936922c094940365fe90811fd632aa50f328ee1","b05d6584999e402f028ffbcd76a58fef18c5daaaca4c55604235e041c32c41cb","44496501906311dce72e3aeebb8e1c23ac9713b70192efee9c281ac8341af361","ad530025b86296fdd701c0381d849af8bd83dd574d4697a14e2f544e938cb2a3","e2cf7e3660d7ed834e3adb3e1fead3a535235f12a1a4ef38692587ecb1546eb9","0355257e4917e000c6318af3e8c062e35c99e19d801c93fe03c534557ba3b1e2","82c59a1f070110c8bc72c9d5838bf722a464300d8665e875d27340c85eefead5","40969aa912cd897f062ef7b007bf23221003273332528476c6c56656ab8df18f","c34fa5ec75d6e3462dddbe081b828d412a3a575b53cbb348f7047f6afbe95056","11a62e67a9d98d919358ca5b8855f911ccdc865f14b203213de31adc67657443"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515345787 · entry 108e9186e8c5677a749c…
Expected log hash: d9a90b5e7311041bf4315991ca7f2fbceee461daa2ae70a8b8b95323461a31cd 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":"v1787140356347","kind":"published-quote","locale":"en","page":"brand:sevdesk","quote":"Great, and the receipt scanner has improved significantly over time.","rating":4,"review_date":"2026-05-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.sevdesk.sevdeskgo","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 (e61c2598d4d0…), 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.