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.

“Proton Drive for example does nothing for 4s after you click on a folder.”

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 2647547434

Proof data

Record hash (SHA-256)

0ba7f6220ebf3140142da16d350fc4f6cb9fb6123a391fb2925e02ba2a22c9ed

Signature (Ed25519, base64)

9N0tzSSBhQVYA1Ohd/1qTTBj1oHWR4m6+IrZHtm/bUz4LHgRezC1ZmBICTImzVoWMG0BW9S0ZdIzPOJTuLWWAQ==

Merkle root

e4013647f339499bd419bb9f69745e1d5e6273d32dd17f94b6c35c2fc080d1e8

Merkle path

["0baa9fbe915e84f1792683cadc0b73712fb0711089444c64a2067967d31e6c35","b4ebfe52049b1416b05c0fdbe9dc2ad33ff05b74a9aeb7d7f483d0921e16bca9","77c4f4c80390e4c3f471ca124d112438a5956be78cd33fcbccc41322aa679d86","05e9b0765c5c11549924caafbba74d7378fa7257209c28925afb69056675f35c","7a5c781af4b6f7c631f1c0908e88708c7dc658a78470dc1e5b14c71eb46df8a2","9f217008ed9b9ad25711a9ffe8d50a5d149eddf87a640bd99bbcab578e524e1e","c8e378201011745d05a67432171b32a717573a3f711ddde40daabe78167dfcf4","810ed31f8b1c004772e7ac0f15db469ee63bd2ad8e853ea43f9fd332ed5ded1b","e78a23ed7a9f297d078123facc0486f1d843c7ff204f3d19b74fcfb4eca29696","24324a3ccfbe762f28d8875fd58229e60c6bad03c999024264c96449dd9bd280","9797ac4081b0914d8b66ad52e291ad8897c1f708022347193e3c8024db076258","84157a9cf885c89da85a3c686dcc74e8c468265987b0fbc6d0c7bdc1cc8053fd","df8342363186f2e3b45c88fa26a77bbc6852f833f9b39f10d9c7965a0af52872","3b1a28d2ad07744c06a00c9b4786a6cdb14dfb04fc76bcc1cbaf73cffed41efd","d68efe45fdecc3c76847a618a62019c7deb410aca5cffe58288bdc27d0bcb771"]

Anchored

2026-08-30

Public log entry

search.sigstore.dev, log index 2647547434 · entry 108e9186e8c5677ae1bc…

Expected log hash

fd8e30fab5cac12236b44671823a2259ebb0774adc4d1a33fd6a7c90ea280d43 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":"v1788063921301","kind":"published-quote","locale":"de","page":"product:proton/proton-drive/de","quote":"Proton Drive for example does nothing for 4s after you click on a folder.","rating":4,"review_date":"2026-07-25","source":"Apple App Store","source_url":"https://apps.apple.com/nl/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 (e4013647f339…), 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.