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.

“One option is ToolsCrush, which lets you merge PDFs in your browser.”

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 2680529400

Proof data

Record hash (SHA-256)

1727c177efcd2d8fc537a55839ee9ebae2c11efaab9ebb0e2a61ad39405b914c

Signature (Ed25519, base64)

dXgQIbMCPPIi+Nd+yooreuJxl/CPxREDJXUiVXcv0A4Fuc3AOSpZk1O2qeV91H/bkfIdUdOgia4738qSKNCUCQ==

Merkle root

0330ee7ba8e00d15f6426658b22fc27ca31e59d35f748e4fce3d7515247465a9

Merkle path

["172606bff9dcc5250d18b5ee39dd895df6e2d5cbeb689aaf46a2142bfdc9c2a0","9f853bc382fc8a42d451ef07a6904fce859926eb2414c7efdbb26756833c33d7","8ce76731e4f3807c200101f4d850a0b3e8fe1f61ffe816ff23e6744547c02597","e5bea3975f9c76d7c8165fbdc89d638701a3893a69054d91ae0513bd23cfe08c","8d739a0c9d5f318059b5e6ef8f57ba7495c4a9639f02937fa6d7e2ad410513a9","fe4c4f7069b9e905affe7fb3299ddd22634dc1a0f43a131e63688a190dac879c","74923541fd8c87a0c469d154445050110347151b28e69e30100e5d1cb6afe71d","984407dbeba4034b1bba5e3280ea4f017164df693aa2c12db286a0201196861a","e68739280374cd97887a4d7f45854013f6442636ad55a5032eeb83a62941606e","ab3b24eac134c7201f75386a237669368683ba97d9c48dfaf68fcfb4d6eb37a9","cf5a6d20725cfd110085ce6d649cff28f5c327885306915f89b61d33ac38dd24","baf63587d0f2915d7ce2e6ae330e6e2bea9909667b60b5609a5e28b7ee45c5b7","d2273f3e7fcc58954042e67e1b5e452db8462b769fd73af7f44aaf6e9dfd66bc","ed4e39ebbb5872b55140ed929350a396fe817203642e6e65038bc747a571190c","e840d0519b86830bf6feb5135bd7342a46b8fe53cc7a93dcade23c2aa6372980"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2680529400 · entry 108e9186e8c5677a5261…

Expected log hash

1808beecdc671d46626ee766a7fa4743ba6aa74779b9fdbb552c4293852a77bf 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":"v1788296426818","kind":"published-quote","locale":"en","page":"product:acrobat/merge-pdf/en","quote":"One option is ToolsCrush, which lets you merge PDFs in your browser.","rating":3,"review_date":"2026-08-07","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 (0330ee7ba8e0…), 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.