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.

“Was ist daran schwer einfach ne PDF anzuzeigen ??”

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)

b173b8c35d645ecf50e94ad1ae8bc632cd80b6305ea445d128ba46861a350575

Signature (Ed25519, base64)

YJVOV06Omw+2tG9VklxlfoioJKWfcQIXv0B6S5TNna6s10YeDfpA2uq0vJz88DUsru7WatbQ/wOCnKB/5IX0Bw==

Merkle root

8a6ad893af0f0bb6c448016a777af61f3f4935afd82df0db132e64f813535715

Merkle path

["b17238113d0e94434a23229b63d51fa8705ddc5047d2890817219e8ebbe79167","ea4a16920f1d8bd02263eb40918a55332b94ed93bcb369c395ab67b289fafde1","c77db8686a1bde8398a83c5573c839e3d4810a116322ec91e75f6583f1501544","cf085b5878d91f43b85be066a59658c638275258514a676e79d858f680db1450","cec8f85f97e9f6b859328665b436df49fdc1965b17ee2993cef1efa8444b974d","4ec017af6341f2ecf53be180287f8136e55b7cff74f66d63270f23d2a5ff0857","b763a04e9f6db95757034f09a298394fee73a32c6753aaa603a2682a7ef48cb4","ff209b7f4293a3ef113399c0f84595fa6f229d8ca417e50044556ea04249ad4f","4c096ede8c06ffd6755cdda726337cf614851a25a0896e7dff792da8a2670b2a","a50d95384b7ba1f6ee7283e373333849607b37d43fa5ed32385f7f9e949f2766","7f8d543c35791aac02970c4b6b83189f4741261ea6338d4a8f8d822d2ee1075c","6e84eef27d06143113b3ff284a7d7feeeba60c45fd7bbc32799c63aa45d660a6","133e4c184d3b920e2e436c5052c1be77d51555ba777177d3d4c0dd1b16ab3fee","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/fit/de","quote":"Was ist daran schwer einfach ne PDF anzuzeigen ??","rating":1,"review_date":"2025-09-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (8a6ad893af0f…), 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.