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.

“Schrecklich. Die erste App, die ich nicht einmal zum Laufen bringen konnte”
Google Play · 1/5 · 2026-08-14

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 2524422814

Proof data

Record hash (SHA-256): 0ac00e293c372682ebc237f95403e346be1b226faca9b2a502f6ad2644fbea8b
Signature (Ed25519, base64): Ee8Lp2A7flNjr/7tmgccZxAi16PwA+cHhJxm/ubUrpxHljH/eGHFaWJgV3jgVcLlXAszOLgftYYYqEtsZhKXAQ==
Merkle root: f8b4f722de05d6805a889681c3818dbde0f5141f0c8463f2762c4a9a02d66a2e
Merkle path: ["0abf7e3cc5002c5a9ceb94a6f292c9750f6a5a1a10e25784e79649d88bce2bc7","023653a413cc1d328046775307937205424b5a3d116b6dbba16ec383b1e6b62f","102a5dc533793be28b25ffe6cb1315beb704c72d23f7a0c686f7e459dff6ae3d","377d83c8a22606cbb8743d14b0221ba3e5b50e2bfa623d0063dfe88745bba3da","8eaf94190ee9651502d99698bc948b3fb9b3b3a68cf0fc9e1d66217aae08d10f","e4c98ed6f253db7c018f95b787e3ebf81742cd2f4c0a92f9249f3746434ebcee","1d62ad9a2f9dd28216bb8a072b5aa76f54cf06162416fef2aa667e2cfb4008de","74f3d698d1a6833eaccf512970fb374dcd1001c94e8123e1e84df6257494cd19","6a630fa358fa02f86b52ce64ee65957ebd285d58de02674b83dd86606f79fb4e","7700fc07b19bb2aa16f11a8b94974e9b9ba33fd9fae5d96aa0ed88db134947fd","6d8c836ad510c47531d2203326951d62b53cf7589f51f1e6198684bc9a2a5ff2","f01f1a88016d2021c5a10200fdb43dc229a8703904477e2e0791d78a57d84700","826328db0053b998cfac0c22cd6c575c128ecfa4f75e9fd73febd75c9f8ee792","fd074f6b5b50b116ac3330a06f290a8ebec7ed1849b30507ad6694033af6e1ff","1d6688e1c2658422e04ab99dfb5c8345ecb419dd1f8c6994b4040572f5b4ee4d"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2524422814 · entry 108e9186e8c5677a9741…
Expected log hash: e042bf60ab37eb8951abb7a408cc8c7483ec875b9606253deec7a67967130ae2 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":"v1787192294432","kind":"published-quote","locale":"de","page":"theme:proton/ordering/de","quote":"Schrecklich. Die erste App, die ich nicht einmal zum Laufen bringen konnte","rating":1,"review_date":"2026-08-14","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","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 (f8b4f722de05…), 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.