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.

“An excellent variety of titles, authors, and topics”
Google Play · 5/5 · 2026-09-12

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): 21df5240369ed3904dc99c41dc1c87968661b1171fe6b98e4fc8475be73b3564
Signature (Ed25519, base64): CekpZ46NzuCsyN3aotterhgxiVud6yss5rCTzcaOhGxq+xBKihfjpV1xao9b3yrJmgeCZSwQxXWo9vRAmjwVDg==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["21defcbeeaebeb5e13dcb7990be2e47abad8ca1e7e406e4bf18cacc8d4ac7b84","b48393eb5d41753ae6190b5a8ab010ffa0596a1c504b50b25a78d60c0b07442f","0d643e37c7edc650b29b971241dc7e90c26f27560fa93e9e4d04fc4b3c81ac05","481fb3f7357a19dd534ad0b40e2c280f926f3fa35cd18fdd3ebf618b84084797","729600b36441706d50f288383fcfa10f7266c7624aa578df541bf4bc761c87ad","7d90983e60e99d0ac172c7521a6572857e11182f208292961b6673a12aa839e0","50cc261c9d0df476f5b45ad471441130948f89b749a933f582bd829f76689a32","317cd9f59cbdc42d095a48deac4c5aaaebd128c9a338bf2f369ec8f8e1a6a318","00cb5a6d2c92377d0f84bee814337376422a8b4b239b6886446f134c4abc6bb4","69fb82ffeed9d91d2c0cc53be6cf126c07d070102e831cc91a4438c40e15f462","87663b8060c34bd52c43cfcf9acc13e2c203c164aac9770ed6b0742f89820281","dffbc784da6e78ce004c2715fd64b08f8014ea3a60655e0f193168cea47c89e8","14d95cb3ffe81dc7ba7bda02f51c7ab9c1977951e0a9ce587124764e85380fa3","0cf751b4d000491c43eea40a33568458d763987b542601ca0644e491c0b04ce6","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/quality/en","quote":"An excellent variety of titles, authors, and topics","rating":5,"review_date":"2026-09-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (f26292e960b3…), 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.