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.

“Compression quality is excellent and quick”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
0b42f1248b176152fe8cd564a3e10a6895fd70a8961dd5599df7645e9dfa1d62
Signature (Ed25519, base64)
iDPl16Eii8i4s+2cXZrAqVu4Aj4H+ui7Q4R8IFQpMbxDruC58pz61gvOCcg6hoQSE6ZOuD/xUpnEyerZ5XwpAQ==
Merkle root
9d8e2118061e8945f2bd66d48af4d41bec49fc5ac2ae7970f14474403c85bdc4
Merkle path
["0b436041784133952d706ed52bde8ceaa80874578952b4fb20793209d8693c25","52c4b01df708b8f74e1053f7f8182214b15bc73a4d734471c2ec2b513bc87bc9","3c0a38121717fb000eb5436eb622cf664f5e7956896c9715bf928b00cc99a04c","4c5022eee57171c36d6eaf32fd56575a2b1a83b5795374c66e905fad54974c95","25247914ed8bf8b7b77edb42f7d7b13ce7cb3eb0321eeebf40f86c3776cc3c5b","b3d41ed0e15597a22bbb0f400956f1b56f5939a1e32759fb9b425070fbf56507","cb84573cb5b8554860cf4eef5f3dfff4a4aaf4e4942f000991c9f02a294ebbbc","a9c4f895125a123bbfbd99ec70446a271c35b053eecca1be2b3116a08c202378","673535a98a1a68b453257c1c62d918a60e8007b3ffbfb77af43f19a5e5ff2f46","b2f40b6be5966dd21d8dbd4d0e22829c3990990c4aaa5a43c37dcf4827d1e6a5","5b4cf64f531b54996783d9aebebce1617fab442d23c58fce155302b3e24b1bc0","4a829cc4819bccb2252c7060d242a979547a534ad16930fb8d55ce7bec8c4620","e94cada08df1868a2e48549247fae87f2147cc360c1565604cfc61c670e9f86d","06ef0af9e89fc67c0d3893fca6fc616c0d6440ace9f21e5de833bce51809dcc7","9ab50226de18913fd10dfc030adeb43f34868f074a98e3eba882908660737bc6"]
Anchored
2026-08-25
Public log entry
search.sigstore.dev, log index 2582616117 · entry 108e9186e8c5677a09b5…
Expected log hash
d7708a8d5cc2ca7faff1f105ce6603ac0b5d5c740c6cd85cf034e25532cbb25a 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":"v1787626691405","kind":"published-quote","locale":"de","page":"product:smallpdf/compress-pdf/de","quote":"Compression quality is excellent and quick","rating":5,"review_date":"2026-08-01","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a6df40e38bd8b631be7d3b0","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 (9d8e2118061e…), 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.