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.

“Man kann den Plan nicht ändern, wenn man über Google Play bezahlt.”

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 2671573458

Proof data

Record hash (SHA-256)

122ce2cac073d11e82f2196acb91bbf798e59d67742d8ae125f2c417dded5624

Signature (Ed25519, base64)

8lyFQkH4rWr/CCbm6IOl45vQxnSKw1PnZG4Nhz2nz2Wwd6FWBngZud+oy8Q+v36OWuBftrJ1NFDWv0ZxET8WCA==

Merkle root

fd1a602e44fa6ba18366d47a3f265e8867d3ace19a93c5a056eb72338ad99351

Merkle path

["12310ddf0e8033acc35b6c1d4001c283908425d7da297c470c3bf7aa570394e1","08071f2228742bdc8dffb4055be45a7b0068a7ba19d01e3ce81182922a86a30a","7b4589081c729a46c0afaebbb2f9e4c8e28a347ca357ce998ac01e0f42bfc4de","617a49503c58e3bd1b7a98adc10e135917f536749e8b099128bdd347ac842dc5","0730b2411d4a26f2ae172e8308bc293d27adbdfef4b5a51669d7e4ad9b9d52dc","d05da3f8b35f00d2bfd94a1d08e7e85dabdd195b3169e46b9cdbd4fe62e2495f","bcf60399649e233ecc57a05d488f71f76f2a78f967dcf0c8855c02b4ff2f277c","d8dd127e24ae845db53535b3422a8def11e6da98146585a4a595e5b8dac2453b","aedd71e84abda92d2891cf54a838988ef58fef743a6a186c72b25c74513b1e5a","280d7f366b7fe4c66656cdc7b35a9fff3ddc6b9199e69bbd58d1108ea2017881","cc96580ca4fea2ac6358e51011caf8cfa7ce51148eb5b47aab50ca8873034e46","d212de177180ccfdd437ab775ac34de19d5aaa50e4426cd098f232c06f5420ed","4b583a6ac00c2e99a7add01dfb6da23772643e2ed4f17a5481f85668381e4235","2378b1f4ffb68987809fa6edceaf7a29de059238214cacdb28aaf8d4fac29206","3892c8cf6eab6a42602f82120d415bfe3619d03fd8bb7ea92db6f133736d9c97"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2671573458 · entry 108e9186e8c5677a8dd1…

Expected log hash

5a4f32b3215d6831d3b044c579372ade08bb930ab401eeb59812a3fb27e3086c 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":"v1788237136291","kind":"published-quote","locale":"de","page":"subtheme:proton/ordering/gratis-plan-upgrades/de","quote":"Man kann den Plan nicht ändern, wenn man über Google Play bezahlt.","rating":2,"review_date":"2026-07-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.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 (fd1a602e44fa…), 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.