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 cannot delete recurring appointments in the app.”
Google Play · 4/5 · 2026-08-24

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 3667254458

Proof data

Record hash (SHA-256): 21761941717c6d296cdeaeaba870f48e1ed5ad3d901544ad71cde685fdc92a75
Signature (Ed25519, base64): nS9mrIQ0rj8EcE0dJ7iV7YuB1csvOiFm0jemF8gjp5wCA70QmvWuMuHZ8mXwt/Gpp7lA4gTy01RZoxDNr5+XDg==
Merkle root: 6198693610fc101ebb82aa1f9c089f7146b31caebf70bcf1f70b87596a2871e0
Merkle path: ["2178db372c5949b77bf46a68fcab132de0014bd6f96566f305ab112987ba7042","bd70efe9928d5376e0a9c89854a0f0fcaf468717a2f766b59ec320326acbc604","1d4828704fc034da7c816f7d43b1fc9606c8dadffda883436c0a845ed1f5926b","dda8da10307b9aa54ecedf278db911254c7e830383176d93c088a31add45dd89","d53bcee9e6fe3ecb7eda612b644ab10d5619cc22fcaa958ee989ed6668f519b5","cebd5ccd7f4e19ec38dacfc828480c8b7911dc16a2e44f7b936ef788b7e0d0e4","bfd43de1932ddfa28e9ef3804520f749a4d3a1d9c7dbfc289742a516f3bca1d0","cc7dd3e936eb089387dbfc2a1ca7c4940baf61afd750d15aa5050230aea8c6d1","42f28fe2d1657d1806edb409821b08a898113b29ba4078672bfd00820c0cfddf","44021fe6d3afe7bb8185ef4e7406a9de0cc0b7ae270ad24f43e9bfbbefddf2f7","341b3ea0d9b38d68ec772df9165156f87b1983bbc2fdf599e22662c790ce3047","0d9e6ee6936356ae6c967b3ce2cb0e42d3ff0d06b736c006024c56f32867114c","3eec96d57c7ea7d1841605fe068da41ba3bbf63a30709a21a9f81605afbbb44c"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3667254458 · entry 108e9186e8c5677a5e6e…
Expected log hash: d86cb752bbe06d2c6cffdf81a425ce2e1f7c967ab490cd5b4543bc4a2cbcf526 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":"v1793702805047","kind":"published-quote","locale":"en","page":"brand:tuta","quote":"I cannot delete recurring appointments in the app.","rating":4,"review_date":"2026-08-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","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 (6198693610fc…), 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.