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.

“Die neueste Browser-Aktualisierung hat mir erheblich geschadet”

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 2515439294

Proof data

Record hash (SHA-256)

134134a250ef23af9838a93c209230bacd00298c3a4f25c2d2634b9c0117f777

Signature (Ed25519, base64)

vZVQ/7nugTc7PospPsIXB3fe6s+t7p+SyX4QrNJ2l980sPrtXqJVnygDWxt1lDs06OTh5ayeBq/f9oHXicOWDQ==

Merkle root

8c6268a14330d1a3403c561e774645b0671f81571ec1735d4674ebe1de7502e8

Merkle path

["13431d7c2982d4c3a3037387b6606cd45597d83e1d5504c1c4aadf9bcbe713ab","b0752b63dc6ac5a20aeb5f11e5ab37f774c22c6c86a916a810d82bcc63e82481","029cf070d21a4b9bd657378977b980352a747ba4941fa416bf1109c02cb026aa","66332a3388bd80c987a26e6099cfb9eb1b2b3bb59bdc9182fd1aefd62b833087","5d3d75bd1a64639b3289ea21241a9bb077eaa7442c9114c85d59d2cab7cb61ac","dda69ebfc1b662f13e8330ad1ede3a557c36e7244ace9e461f42cfb1c7058bd8","aa3c8759b96bf213937fb70ea4c263bc7bd6e2d2688c0132d17285e54c86364f","c89104ce279c5dd991716016897a4b1f03b9cee9b8f93f1826b5ab1559ed1bd2","5ca3317a91f3c996b606b6ec137844f4ffc536183faab0cefa18a3438bbed50d","7b0360af0028584bf236f5230c2b43a3956d913f26f2cec511ec775ea9b813fe","1e70b8d9aec829e2f411cd4bc469112302a1928a0af50882e40b7aa7a38bb255","7ef6ac7024634bd499c7b4000924d4521ea6f07a4fabf02115c6a5454f25c229","87aa107dfdf756911acc54672d2c33287c6855f38333ff4636b90748c8d70127","894fb50f273584bf006781fb08f5958320d3e5510a31da0d6339bcf63d847254","f548939ab1bb46e2c6638c372c3e2eef0d561ad18c63c15229fececc951e0b3f"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515439294 · entry 108e9186e8c5677a4f15…

Expected log hash

128701fddbb19410bf57cdb2d04d7a0278d13bcfda6410d76f176fa58341e1c9 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":"v1787141082461","kind":"published-quote","locale":"de","page":"product:smallpdf/ai-question-generator/de","quote":"Die neueste Browser-Aktualisierung hat mir erheblich geschadet","rating":3,"review_date":"2024-10-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (8c6268a14330…), 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.