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.

“Der Support ist gut, aber er wiederholt nur die gleichen Worte wie ein Roboter”
Google Play · 1/5 · 2026-06-09

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 2681429093

Proof data

Record hash (SHA-256): 08c47b099b3ec394aeda791a195ad301dce5331daa173e9bf4fd722e2bccd9b2
Signature (Ed25519, base64): K72oYz5Qjoa/uTb/3FQv3mOpXnqvSPovoInTdqdX93lD1UXzyl6+rW0TUks7IIZ4onIKo7ObG0ZaqIAjpPRyCg==
Merkle root: 49d75a7972dad7fc75a734f764cdbbaa106268e1ea0f657aa8c6fd89424d4b2f
Merkle path: ["08c516d48b0864f694b3388e67575f4c515a51317493ba0e0f8c038b59098bf5","5811fd5e01f39709ef07e6d340805a1e259af65dcb72c25cd47edc1b316217d4","f02b45711b189ad31ccd9008cb1ff58000d8f94f6dcf9af06659b279070d6c0e","69720f33e08151bef21a6aa9a4a586c2d1d9e104a71e66db534bf91bc5d26bdd","1516c8c1fe6deab7dda887243b1cc5fa1863e289a340add60d3e04e20db6c545","f18d202bdf513d2e593ef9371e0ff8d5cdcd2cc64d1a02825368800afa2113e2","5c30c79cc45f89eb7a351fea3b7d7f04b087757e93e07cba353467b084e11711","fb422f0c14f04b62b45ba3fba259af9941468c9172effd850e8f2941b6df70c7","18fc4a6db243294c46613c641ed4450408948f5f2c4e9345ef7e2b7c0518be88","1173c91b2cb25c9f0fba9d9ef1f7dc42f2b63ebaf57db92e1a5817cb8b0f58ad","3e66c9aa593abd6d31a4550e5f3f86a8b21154101d738f82e8be072e185a07f6","9ad764adb090606813af8d981e25ae04fb555663f4dd61ecaf358a138629116f","f930e87d5846215d9d33cbd2f684fd0788c4b25eadd845d1575c3bc708e059cc","79d6c858c8d60d7d4fdeb98d50012f464859bd3437e8887f9a62b641664e5493","75fe8695ca709a884269711b05fbdac24cc3f8930abb9087723ce2c8cfa8fe2d"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2681429093 · entry 108e9186e8c5677a81cf…
Expected log hash: 89c17d1b707f92667072f2c7dc2ae2ebf8b7354f0952f06862b4ec01440c148c 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":"v1788303366831","kind":"published-quote","locale":"de","page":"theme:smallpdf/service/de","quote":"Der Support ist gut, aber er wiederholt nur die gleichen Worte wie ein Roboter","rating":1,"review_date":"2026-06-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.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 (49d75a7972da…), 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.