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.

“Großartiges Produkt, aber leider kann man nicht nach Dateien suchen.”

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 2682068569

Proof data

Record hash (SHA-256)

0b9f2284a2fc94a7959598ea80f01ba66690c41cf56d6ca468800cc9bcf1aaa5

Signature (Ed25519, base64)

76e4gf+apY6BNPegSLNtQCKAAcw2NG3dwezgRQxF4YCirJgYmsY2qptkvsXByCxBirHG13/W83humNW43426DA==

Merkle root

58152eafbd1e17c07a57fc51092eabce1ceae3f7d7e40817611cb7b6380c0f72

Merkle path

["0ba4f8cae713daaf0c905c0b87a56d7f45ff96244e2110cda9a4dd69b12f8b23","d2101316bf3d680c52a2bab6e62370ce6684ff2d52cca41a0ebb729efa2fe774","597920629c6349988c1ca439ea137c7a7c80806d7a9987dbd2ab5f9ea2260a8a","0256ec76f174e74b3ec50ab8f960a3c5406639b367f4757de3aead6f274e9779","5b6a91704fcab587ff13ee45e55d18269f8b141535f98c9ac4d6d9f72310bc3b","fe3fd57510fa782d8cb1ea63f7aafa10344eec3b6e0abbed80503ad397f2e587","a903f09d90a18593ac21fdf5a10eb44eb3b675b170aec9c873bcc4fe3dea765f","62eae2824d6ea3bb9e015b954e355532b7843e210e85d965a6825b6d57a9a741","a1a5b659a4ca64e4c1e75b69aeae20ec7078e63456d0b925c521ff45d777d8b2","e08e49a0cef44d2bcbf8628e6df82017db0a8669a1fcc49df855ed88e86e7bd6","1baa4590b87c2fbdbb1d34b09af401b9de159065e32b1712c4de74f0ac981161","8c13fb05753408efea894d3eaa22fa4f673f39c7b172f7a77e664ce000c21263","bb462c3d38ad21a9cef76adcdb883e387603ce6deb030828cc61aed6c2537cf9","b602feeba516bbe712ba8ff0806ba81f2f58a4affca9619585625802efae22a0","cb20bc482ab55e20ccb32de1de1fec1b4f895ce9b04bd36ade3cca9f53182999"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2682068569 · entry 108e9186e8c5677a4c96…

Expected log hash

260c49803fe8c7d22d3480836633b40387adafb10154040fa1604350d604e93d 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":"v1788312710194","kind":"published-quote","locale":"de","page":"product:proton/proton-drive/de","quote":"Großartiges Produkt, aber leider kann man nicht nach Dateien suchen.","rating":1,"review_date":"2026-07-29","source":"Apple App Store","source_url":"https://apps.apple.com/ca/app/id1509667851?see-all=reviews","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 (58152eafbd1e…), 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.