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.

“i also could not delete any photos”

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 2542443729

Proof data

Record hash (SHA-256)

06184dae13081737f7dfdbdcc082ee1928a7c34eeea2c222f5067c6fa9fd3d7a

Signature (Ed25519, base64)

u0EsDZnFKFUFXQITA5kBFCwJCgRXC7zQHh9dZZeSPXfhJ26iiv1CV3a0gVm3AFUPxPFhfqq1kBTSWXVI3zNGBg==

Merkle root

4354cafe0e2ee66c200238a4bfe005f997e761de26d9e528ed6c12dfe1b33129

Merkle path

["0619e1892c3db4386a38529138dcb627bc71b73901bde05462e2524026c5dbd3","41a17d2afa224fac865f28499bbbced93dbfd9ab28bca80cbdf79b32966d670d","93f78549ffb2a4e6c942c02ab81b1887352bc431a892c521cc02665ec7b7ffa7","ec330a720fde2518e43529201858a5e8e3a9863aa19fdde963fa5b4849dd8aa9","0219f9c045740b486f913479d0a7a3755d8d2bba17d863bf09922119fdbb5af4","75ed8e9d84acc9d71e9e83e1cdb33b9a31ddbf97b4a018a5f30408a7ef7ca25d","feca9b86df5fbc2dfcfdd4b372eed7b13e2e2b10e003d48517e6600c9e77d90f","9cae9a902361fddf919df189dd8cc154cc4a0c819881ca61ad9070b1a95fd5da","c17d12b721a7d2bb77be67db5aaea2356faf8c6268c9d134e32b7bf95e63b485","337a53f168adbc15e03dc4c809573eef60879cc2dd308ae6e3d76b8f2a9917d5","7492104a60008c8ff17d2a61269ce71d0a45a629bda2bd27c03834f883794aae","b7c031c5d5a259b30d42108b4ee16783cd741d935b245cd223ba5132a4508cf2","8768f82f7b88a738540ba1a3e2c8c04be4a2e7d425276e7dd71d0f787a7200b2","34012874980befa2c4e79572fde2605e3883df8e5878fe4daaeaa8bcd10c4d2a","16ed4be9ece293c235c5510e2cd19a05055f034548e73c12f8a9947de7b32591"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2542443729 · entry 108e9186e8c5677aface…

Expected log hash

1f12c9d846c7a9fd8aeda84057eb4d8f639bf78886a62c6290a2a60cd48e0812 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":"v1787280389476","kind":"published-quote","locale":"en","page":"theme:proton/quality/en","quote":"i also could not delete any photos","rating":1,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","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 (4354cafe0e2e…), 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.