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 has a free version for personal use.”
Google Play · 5/5 · 2026-09-01

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 3273209361

Proof data

Record hash (SHA-256): 2054bce2fd2b2bb3c431239ae60575cf1bff71a4a07c1437b14fa17ce31fb279
Signature (Ed25519, base64): tlZbF++j0jbMrm5DNkV/a3PpP57uBDj1Yl+JVFoSxzAeqGdyExY8VeKQuWNeLeaMLMrxr7b7qjdYf4YZM9LGDw==
Merkle root: 6ebb2d3fb78e4a08533ac6b6852f3c84687141ae9b0e78424d88bb4161267bbd
Merkle path: ["20499524c2954ca95070317a9e21b4db831c1296d4cc18169478a622eb20faae","73548447756c43e1e423e448fdd7e5522221fd2fc8461fd15da1eb1e66e916e0","84ee02392dba03f8625ae897e4129282bab7b8c64e74bad1a8e90c6049ca8ac0","25f3cacdf10a41000c14efeb432210175672421b89da72ab7300ceb6e2275ead","12764f247786f8d481827bceccad51759ae5f9ab26f4aeab206868afb2fbd192","447685c10cf5fdc64a2f3d410a31c04bddfe6961a968c74f47a6e944c3519b23","1df93ffa4aa09b2bac40e9bb030bc46a0d3805d1539670d8d34521566c8f292c","96691de6e59a8c5c986e70ccb14e710b7bc603f62048d3417bf29c2cb3c3e66d","99cbc7c9b2beda60b572b5a5a2a86a1de0de0dedbe568a6cd9dd02196791c3e5","5ded56443510d8c8115833d519272d0a72a50f8b3c21dcc334bb9630ea976695","c6505d62fd1f18a4c80c5faa97487c91b8a68d4c0c27d65e4983982245aadb62","fc73c2b0627636c8f676f008d05fbbd4dcfb7ee0af08432d0bea252601b2007e","b2809ea8af334e57adb596cf07ef2c411ca41ee72761a0ae0fbef01d75a71a23","32d6dd564d479cc6b7834d44d5078d8ebc72c40210e72f0d380fac04d2d8e87d"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273209361 · entry 108e9186e8c5677a732b…
Expected log hash: bdbef22d23477d2ccfe2ed182ce8ec54934b3bae489c9913db850af171e33062 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":"v1792121074379","kind":"published-quote","locale":"en","page":"brand:tuta","quote":"It has a free version for personal use.","rating":5,"review_date":"2026-09-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","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 (6ebb2d3fb78e…), 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.