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.

“it freezes when downloading books”

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 2913636507

Proof data

Record hash (SHA-256)

4fb9dbf907517a0be22ea20dd8670d6cbed1782443ab119984c388f15f76b187

Signature (Ed25519, base64)

Mr4EfCQHJFsZ8PrqcYN13IJgHBLsIYHaKgBhWfkrkaP2ZZ5+mlxmUv8wBaIKPsT71bJhbxpHCYsyKrWKH9jfBw==

Merkle root

f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5

Merkle path

["4fb7d665d6891f472a9b030e3b0d8a9716fa75905d79fe181fb17944e2b4a4cb","8481f430c61b61cf22fd7e95feaeeff60d22705cb06672a1b607c32696fbff6c","35a1ef8abd6fc6bbef8f617b9ac9e4d324aa0de673a6c604dad45483002163e8","1ae245b216c43304c6205b923ebeb84e2c11844c4618a23132a7b4188936af30","4f8b402f488f150a600ea7971d3b3171be2a2012a60d016ad6c76765bffa8c3d","246a79cb05c6fcae47e4d80b5849466cd24c95e7559a8477201d1065dabd4116","44376df3aa091c3de60a7313b620999921df7171e1456d417aa7ebc774605536","a3912aedbf1bb9e4424ae2c8e489d21c4e8050ae872aeb6c2015d7103cbed305","6ceeff3b52fffb3e042d083b258233b63abcdfe4d0ef53802879a93f7108acb2","ab90e630bc3b314fe9d928dfda3158d4f044c3781d72c7c4a0a859a930d5aa3f","12498701ec80eb322027552740b37329e5ce7260f2d8bb670d3a26d50a0d6874","59ed91997728cb88879bad2b8337d3faf9e7582bde33c223df4df42a8d4a6fc0","eca7cd52f5c219223fa262f727815d7426f47ee6fd8d3c4a33225271415ce785","7a8821e5f39bd89945ecf080ecd049c93644614124901c8b74f26df2e34d9289","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]

Anchored

2026-09-23

Public log entry

search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…

Expected log hash

417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"en","page":"theme:everand/delivery/en","quote":"it freezes when downloading books","rating":1,"review_date":"2026-07-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (f26292e960b3…), 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.