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 Werbung ist zuviel, dass hat man überall”
Google Play · 5/5 · 2026-07-18

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 2515144749

Proof data

Record hash (SHA-256): 60c877d8dbddfa88518d661667f82d06bacbdca41a089efc8eb48aa206a41841
Signature (Ed25519, base64): MSE/YDB6J2pVX4+vf85nKabxAhx6fKlKk+pgdurd7ZFG//s37G9RZppAVK5fOGfWIeTENsUrQmveZq40zCc/BQ==
Merkle root: 8a6ad893af0f0bb6c448016a777af61f3f4935afd82df0db132e64f813535715
Merkle path: ["60c9c72042e368f8279c8e2d7754a194e06c6831015705309b01324ad3abb86c","397c3dc6acafa444b99fa33bf0246ce5f0b9299b20358f1ef148bfb293a4a84a","f87dcb518619077d7d81f08aec9037b9df69ddf29efd01b0cf7dcf6de58859fb","6ac4a2be3a32b20d3165b9f366fff587720d8b6302f01a4d25e7ae7fc7b0a774","68d1809768a486685965b5427cfbe92abf78ac0c0e01da8cbb39b4294c805e04","326ee55154ad91fcd62b1d397063ffe4e0574f738dcd5896a643c425450f89b7","b15dc8c1c9e139ad3ca5158c90de1527b9f69c571bc5d0c9b5ebcb204e881658","98f56ebedb8438742d6dd41cc4ff632166e9033e447e4d89691c0d7694eadad1","c2a4bd8e420e887d537412f6da88213f9338cd96405f89e1f9a974d322e4965f","8de8156ffb1d46644d66554ff46c7411c6bc9c3dd39e664a24c010cd5c03a520","347deae23705298f19e27fe2cff2a93fdc043dcd4e4d83db60f6a24f8a5abcef","3fd28282483646e6d175334fffdcf877a35d8aa4f4a3625c1e161c6067d9b015","5284fa1b0195183d338070f05d29e0d94229e3402263e30318e4f273240fdf18","95de144e054f717eac0f186a52d131e0ff4674147622cce8cff3d2611e7b6e99","8834edd87c11ce9424175f1744f71345038aee1c5b6f350a6f7bc2a49b63e8e9"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515144749 · entry 108e9186e8c5677a63b7…
Expected log hash: b6b79ad662332330e69c4ef135f6fb13ddc70048f846024d496aaa533f7f7fc0 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":"v1787137589246","kind":"published-quote","locale":"de","page":"theme:acrobat/price/de","quote":"Die Werbung ist zuviel, dass hat man überall","rating":5,"review_date":"2026-07-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (8a6ad893af0f…), 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.