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.

“70% compress pdf file”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
0cc4cbedce50143c1a14e0dfb96737c71d23af3767fe69a7295aff09153b2531
Signature (Ed25519, base64)
5oWYMeGfFHIBs1nueMWi2QcfNn8nscn8sppW41IgXj9Fg4BrplRdxdueLShwsST3CGDl/JNbGQ+SnFC9IQq2DA==
Merkle root
d9909e7ff193b610d96d9930fa8111baf2fdaa08b732478b03ded2b9e1e52914
Merkle path
["0cc4551edec22d57df1cf8ba3fbaa206c9a53369bdc39b893a3dde0c92626416","a5ed55e65550c286448a203c365c6c5bfe9afd1b75069eaf3954321eb753fb1e","9f349185b68c0ea53e63b1510907ae099da96b471385299bb6e38a03cf11f8f8","a3b4e3767ff16f2eb784810d6a553b6f73742681797ecc5c97d9e4128e8748e4","15737b4054300514358393b66faae317aa5c38e96c157ac9188f9c26cfafa324","233fc777fce5aadbb865bcb11fad163edffaf82b0b9090cd797ded44c1065e28","56ca5df8f4bc64871a175211d4c7535e577e475b28e87542c0c030542a89c227","570422385ff003fbfcbaab3276b14e4fea28ac79371b74074a61f9a4447c69c9","30314892f361118a92c17e6fae2ad15786a48262bd4ab8f4db59921939fbb30d","1a03e253f4a2725ad5425cbd209eaef650704423b0ad090ab12072b8a353212b","23bacc8063136eee0538c5fca4900d614216b82643459191e73bcae8b27251b2","d0c545501ec6b40886bbd7f01a63b389d170722a1f58d9eb61157cf85e3ef9bf","717fc4742794be36cf72805fd12ab627b31b870eb5c244ddb55c2504c3c85510","c8967a31c6292f2cfc7ed9c390f7083b1880ea886157cf89b881616d7130d93d","2aa33c224957c89d7d414cc43142ae7c4368efde4f1a1b6051ee910ab17bf997"]
Anchored
2026-08-19
Public log entry
search.sigstore.dev, log index 2515095234 · entry 108e9186e8c5677a299c…
Expected log hash
6f0abb2e15f57da153d99eb9fe756fd2540bcac51fcddbf7ac60c4be3cfb5f7f 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":"v1787136684512","kind":"published-quote","locale":"en","page":"product:smallpdf/compress-pdf/en","quote":"70% compress pdf file","rating":4,"review_date":"2026-06-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.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 (d9909e7ff193…), 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.