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.

“The app is good for work and play”

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 2515033577

Proof data

Record hash (SHA-256)

6b291c0413d90234bfc1f3a5ab5e9e6184d52309fb2ca0c927fcd5fd5e93aa97

Signature (Ed25519, base64)

rbkB14GE/mnEVqkAk5DTLdd1gqDnDFCUzvA9fJC2Gt7jLdJTNd9CjjMcspVqXHLmsRUbRQYbhPJFM8f2aoxyAA==

Merkle root

62390602d5b1801b2c96dd61074fd5810278db65461e368ee19c9bb147d249dc

Merkle path

["6b2634120cb14384cbc08484dab4b58dff931a9e5dbb0f3aa3bd67942dfeaae5","2660af07de1ce81ec03e8cf37000fb793189da6b62ab4d556dfc578ef869e185","cb3d5dbdebf4fd08425ffa2f8c5d02d4c60e708bae4f2f0c8401d2569c262f3d","f2e9dbfa6e762213feaa83b9cf2c0bfa41f733884c42471bf2e90efada17f829","78bc094e3cfe9018e409fd488dfd3ec67dc73b50e19b7e9f8beb857b4035ccaa","2616b39f7232dcd850f7fb12daf9c2f6165c1e2f42b6c997d8a9a2f6ec3ed5e0","6c2cd4e19a800fdf7780c5598e8348e8045ff1f74ad0ea90302aa4127f950865","61a3589d0cd597e7823e4fc79b5631472f544645bc1754a7c8bcf587b39e25b4","09c879ea79803f452c8a1b2d56ec87a28a5992507e235a770a4c539c2381056f","d9e12ebaaffcfa17949a957512822d7f588601abb2c6d0dd3e29dfa94649830d","c711e55b29ff4ea72d48165eb6f01dcb1e884e466012d224c2f215719c61c5bc","b0dc0c20548098133de3f9452c9e18550b81c81910057c978f584db23dcbfca8","a5b0f88103dec63c80bc1707eab835572838fff5f43aed265827460436ca21e9","baf7c3a9a57269bbb0661385ae981f5f3219ae8da84a7502572e283df3bc7435","9092fce07a46a5708f071a70ba5ae2d3ebe27de5e813ea1756180e7747d7c5d9"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515033577 · entry 108e9186e8c5677aaea6…

Expected log hash

458ac564101d02a2c8a5f98465ce4e920300682f0855e017234ab870c48a16cf 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":"v1787135948936","kind":"published-quote","locale":"en","page":"product:acrobat/pdf-editor/en","quote":"The app is good for work and play","rating":3,"review_date":"2026-07-23","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 (62390602d5b1…), 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.