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.

“This functionality is available even on Adobe’s non-premium basic Acrobat Reader”
Apple App Store · 5/5 · 2026-08-11

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 3239939960

Proof data

Record hash (SHA-256): 1403c9a5418738fb2349c434532142eb35b973badccd7f5ff969032328b33691
Signature (Ed25519, base64): fBCZ7ch571oRDqnwY6Bc908R/Tl3bUDHcGHa6rIFh95XO/l6X9C0sIb1EIWOJjrQSH4tCp085bGssaK1gdb2Dg==
Merkle root: 954962254ff2eae9503796c02bd08deefa3a5722e4ac0b3981007e2b9ddd84c7
Merkle path: ["1401b2b3521c6a4d19f39f797231fba64231702b94af73eb5d80ac66d4a03f88","229ac00c2769f8e923578464dc0ac2c72834f0cb230f4aa2b4f47c7c6feca163","f9b682cce02d9994716ad02e6d10d75b46eb4fe238ec555dc057a74cc9cc864e","5421fa2896029881e320a8eabb2beebdd21ec194171e9763db45eecb1373e15f","bf579137a6fe06729dd009d8d420e3246e3d66c8419cf376cc4c24caa8d850cc","c071f814539412a22246df6d2dc5f9f56a99b2b8d4d59bc0491e821f230f6bf4","165acced375cccbaf20aaa5b6a03269fd8199b61197f8217ea13b17188886c13","b0fb2d2424e0a84f1163ce116db8e696bab3f329bac9a88af8c58dace4a61072","efff4f6b08f2aa71d7c404896cde0165105682ab98ebfc7f19e7ece1ff46a87f","873a5fc80ee5b1be34dd5bc63b4383fc1df58e58069b1615fa2265187a379a79","ae0d02eb4672b68d3bd901c75d5395c5aa8f70e1034007ed320cfbd88eab7b1b","fde62d346ca93fe6ab586e87195f181c2c9b2ffa2c14b8bfe557af9f131263eb","07b2ba787804bc9fbb84c73bed76b7f65ff1b8c1694261a8264cf5f3209f315a","e7bbbee54f729cc449b73bfdd383c96b7b180e618c270037b5697f1fcc75f254"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3239939960 · entry 108e9186e8c5677a0082…
Expected log hash: 28fd9464b857a07e61931e67235e692cb8af33d7541a60ca163756a54a64e9c2 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":"v1791859824762","kind":"published-quote","locale":"en","page":"brand:acrobat","quote":"This functionality is available even on Adobe’s non-premium basic Acrobat Reader","rating":5,"review_date":"2026-08-11","source":"Apple App Store","source_url":"https://apps.apple.com/gb/app/id469337564?see-all=reviews","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (954962254ff2…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.