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.

“Which sends notifications.”

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 2904877428

Proof data

Record hash (SHA-256)

2fd73023321fc090444c6024368b1309552e353eed6f8039572837ac8797687a

Signature (Ed25519, base64)

rzkKj6b4R1qyRiiSi7p07XOmPSMpb1oJfxtH2G6icB9noMeYSmJHNJgLZ88w6zM0BN4g2QiHCMiZtyPAoZHwAw==

Merkle root

e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef

Merkle path

["2fd74275a98599a27f4c4caa438445f1e8053ea4649eaba2cf87c735c086efc2","42f4ee183bc81610db18691a15f877ef6c0ae3de73052a1b638fdeb94442cdc1","3d43bf5ec3b82b9864ed398206471297a240fa5119a5d068dec35fb0738e15f5","8546ad4b62fdc32a2794528a3859f4b42f04f8444637d6c58c08ab93ef9591d0","9fd683b450a3ed89cb8645022106503aa30265a1233aef1572f137ef61e71735","8de80f3a49a5c7d5b048333e6970502293d64b955871ba5729ab908d1fdd3dd7","0d42c2e52e819dc2b69d19050d58936fb2b6977c1fba380fa025a126c41364fd","87936af193d1e1cf2a8a5d57ff58b8d2f80453012991d8d9c5d5a1548e69f274","187d51a80a48145885d7da5100cd9a5ec8a689c9d514270568543fe6a055a451","c6c4fc2af6ba1eefe809afd91778f4d6e85ff37fa661537f3b877227c5bd0a39","22f7f790928f056a4acdc3634db989dc19836ddd154c7a9b49ec17a860d185f6","357edf8b8b42fe4c3b552e7406b8bc0a14039d1d547cc663e39b36a74f79f52b","b296372665f7c3838922f5e4d88b25d49437a77f990ac53d0dda027dc9495fe8","2e838893ef313b8ef0f87568e1e691fc197dfcee84413640a12968493decac73","bce5d442c07de6307e5ea8947098e74ce88c2246eda5e5fc1015a6d7519228a8"]

Anchored

2026-09-21

Public log entry

search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…

Expected log hash

d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"en","page":"theme:vaia/communication/en","quote":"Which sends notifications.","rating":5,"review_date":"2025-04-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (e299bf38720a…), 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.