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.

“I switched to a different PDF editor”

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 2543154575

Proof data

Record hash (SHA-256)

643786c05d5b2c89aa0fa1306e6f8b94463e6ca52113fb1f70e45dc36510c3f4

Signature (Ed25519, base64)

B5vgWwNdgHqsdwfsggp5hEJ0tVwbO9SNdd40fOOSNfIRAi+EvxUhfkgb66fiEThO7/DiXjyMa5Dy71gvyTY2Ag==

Merkle root

9ca8f1c1ad15a78206ceaec922c537c0b0ac598e12c9c25877f5e0e19de38c6e

Merkle path

["6436bd02c42c0fd93ed9fda27c93ee2dba21b57141377b3294114ab39b378d8e","4235b359d78f95270f091225c21a12430fda124d9b77154fcfefc1481d1be0d6","5ee02d2f0db4b9876e02cef8445eca8b83450fdd7f2343d2561a8ddf4e50de19","ceda4cacb1319a609faeedcd4a1cd649c615c4bf8eab5a38875f3d1bd50749cd","45f7d50096a1d1f1401ef402b7198d3aafa46366e50e56c38e13774c3cfd9c54","ffcdd32dd0b84a2ed17a0ffa0eb64a28a5dac074581298c0f28cd938770da675","f63cf12df5f0b16cd4350be2534de21709cf66762909aea4b43f13299ea2677a","584a71ba15abf85830a3de7aae16cf1052a80e39f7d49c034fc326b0f3424c06","468e85acd8556b5519ee899bfb1fae5a18ba6fdd10d8c14d25cb6d0e50317706","356b5afb583f295596ea9d4e8dff86ce69a41f9045f5853054db8d05ed027a72","5dabcdb14e83e92f6a4b0a0b6f082dc87d9eb8769967094e0c95e4c11a27f66f","a383dda54097c814975bbe4525893869077a5f762d195960171df04e5dba1c42","969114be98209aceeb13470003a6154b1294d7c8dc772e07d6980600f808e932","bb86c0787e05591c350bbf95c58c2d99f0ba679999db51dee6e8bbec88a42a61","deb69ba818cac6d60ad262ee5febe93ecfd14e4c978778af299f82ef8a69b934"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543154575 · entry 108e9186e8c5677a0eab…

Expected log hash

0099eed9d12aa99aaa44ed875b87ffaf90c46527b61dfd92cdd4db2c148aef65 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":"v1787284115102","kind":"published-quote","locale":"en","page":"product:acrobat/pdf-editor/en","quote":"I switched to a different PDF editor","rating":1,"review_date":"2026-06-11","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a2ab0ba5264b6bb41216185","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 (9ca8f1c1ad15…), 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.