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.

“The standard Android back button cannot be used.”

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 2525010456

Proof data

Record hash (SHA-256)

1b4127f115675bc58a6a949659079911dedc74367672a1f9c30634957228ea70

Signature (Ed25519, base64)

4auW+w875Jr3WVMWiuV9v29xo3XjLv2bvfFOVZoV1mYnq/rf6ccMCq84BRWSszvLr71Rs28UG5j3tBY9qm4yAg==

Merkle root

c69b412346f0db8d88aed17dbaf2e4876a3743c1c4d16fb306ba56b5c0573123

Merkle path

["1b3d8306d6fd4f83451ce90af73a32ed10128c98e1a85d66f3f7ea9d1bab963c","deed48c734b740f474f9140e8706f62ca312b6dba574924eb878efc41ecb5f27","bd005208bac134f9c5ce4e7d508ca98ee99832dd3f0c2b56083a6d29a8abb4ee","a91c581968da1a6a173e5a787fa937253efb662d37928262009390a172c40e54","d644fc9e93ecf3e9228f5d6897059efe7238e8dffe19d49e008f973903b0dfd3","8c9481ae5b410f4b0f30a01466ba6d8429be5b9f7816f7719d64affcfd0890d1","b481e90a69eb09aca25c5a3074f44d3075bcc76f768679d4d97ab52fb2606041","d8cb53825b90f940f85c4f52b56ed9854522ea479d7f6f0c257c1cd3c2722d09","b90aefbe2e3204577c555100abe529d51390bc85b6453b5e91aea95a46d731aa","daa6418042135fb62ed892d7e04e829c44c2091f18a527ad3c3dc54fe77d7c66","9117844400e1f8b2cc2bf8b61c02c1490bcd3a7ccfee77c3bbf757588aed0393","721459d5ed2b625225b644c6314b3b4b68ccd1ec7d9cbfa0502a712e52e833b9","09997fd9b1ef8c57766815e6c9849e05f2447cb27e8d805273108da18c60273d","62927e8f71080777dd1935c21221e60b742dc0377a31e2f20a0a64cf6c3282e8","3da38b679e2392986aef224a332d14750fb3a22c4e75287765e8f68f575f24f3"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2525010456 · entry 108e9186e8c5677a4287…

Expected log hash

659be4fcc7663b2dc65a53351e16497fea44ed9ec8aef1f3c48c8e452b350dc6 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":"v1787194832011","kind":"published-quote","locale":"en","page":"theme:relai/quality/en","quote":"The standard Android back button cannot be used.","rating":4,"review_date":"2026-07-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.relai","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 (c69b412346f0…), 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.