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.

“Ich bin immer sehr zufrieden”
Google Play · 5/5 · 2026-08-19

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 2776103867

Proof data

Record hash (SHA-256): 2851ec3f227f51bacee1e776b9a8edac3a002d75b897bd3e2f043322a314635c
Signature (Ed25519, base64): +bELYzNWBNUhp95BtxjlfACqIUMW25tzO1TkvSFxUfXv7o+SrhS5o8VAyJViumsX0sHq1jbkAbLpydhxavJnBQ==
Merkle root: 4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8
Merkle path: ["28511dab2abcb6f8de6494fdeb48034cfcec398c33e074bb0ef85f8a2ffd8a69","03c7641096f51cc1442133b750fbb5cc65b990e019851166e9d4197c39e8ba05","2ce30bdfcf8c79c263d0e544d17d489599c2a7407e355c6de4c1bd91ae100a0c","7cd9d7146c9dabac2333d53eb13a907d854352098e9b9ca2e074ed20b540390d","7e87d487786b2ab41aa2d6c869b77184ce89ae1f975d3def3ef7b9a9affb752d","2fd9854efacf37bf31e44a0896736bbf6aaa526b04473f265fa2be7b34b6b544","7e8479040ad72d341bf8f84ea54770cd047b84f82a0239698f76d3e31e0ecd7f","2cdecd47f3889973e8e6cab34c57ca739f9a8fb4f10223f869c1a6027a9d1a75","0866804e656a4cbcafb2cf042aea0a981fae7ddd6a2bd2cc39883bce43a55d0a","4d77d5cceef0f948dbc0957e476fb71d1da9167a6e0e0925d02e4d6af14bdf56","4133a15d2cb0da1b32c67b91b0de60f54c4f12d58d66ebb4c7b4893d1118f5ac","d610e3c549b439cfb5c1aabd8830cc14808b683b9751722225fbfdc069352079","b64868d5884e6ca103d8fa1886b59a755a471482d82618eec868304914b8e334","72f96e42060ae616ed33b8fd6ac687c1899623eaa8a351026bf33e2e7a041d34","e60c2274998b06992577796b6abe86bec144203fe960878f7951a3ae12c9e532"]
Anchored: 2026-09-10
Public log entry: search.sigstore.dev, log index 2776103867 · entry 108e9186e8c5677acd4f…
Expected log hash: 2498329b7eaf275d309293dfbac35d05dfb8a55c65956add8448561c05945f28 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":"v1788848066028","kind":"published-quote","locale":"de","page":"brand:myposter","quote":"Ich bin immer sehr zufrieden","rating":5,"review_date":"2026-08-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.myposter.myposterapp","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 (4dc0bd79ba3e…), 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.