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.

“Excellent Service !”
Google Play · 5/5 · 2026-07-24

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 3199173952

Proof data

Record hash (SHA-256): 0ab7f36866644b4928f1a16716572c928117613ce2f6950520f0a2501a1da2c6
Signature (Ed25519, base64): BScf/fQ5JmF5ZGGlTYaGIPCQXY0+BX27+24RJTzyGJnVw/HUnzEUF7DJX67mKoI5mTW3G49XW3TbnHCzRAlOCw==
Merkle root: ffbc979c8901fdf55f43c5151768b18a738fc1c271c9b2dc97349c3fa8ed35d2
Merkle path: ["0abc16fda0edec3c13eae0513925b85a1389e1862c5156fa6dabba25d90cd349","1514043860a3dbcef26ff8a58b25f95edf442ca68800d6582ca78907745155bd","5f3979f026fd7fa6b3deceff48ee6a2bd617f921f5314aea5ba06af2d590dbc5","2b1fb415cc75b084b99b70a989b6d49d8783b9b2bf9e21c3b5e648f01cd79084","85eef4d40faacb891bc4e62f58374b28cf1c0b8937fdcc605d501c05532eb8f7","d2a1d40b0bc93f58dcc78170baa86bb834e203f61287e0f979d17bdb22fb1862","54fdaac98821f3eaa48d0e9354e4dfaccfb5dab0b98ccd2764b8403fcc265d7d","99675948a437288162fcc29633295440b521ae0d33759757860667e6218731db","05238f8c8551d2f8825995b4e0059f8b31cba08b29dec0cd0fc9ffde4f9528bc","48a2f8f704121ce9889596df35ad5d5dcd33187a2b9f42b8966737384d2f25ef","30b2221ee57f65dcaf03540825ad3191470cf9feeae9f59674d785af3fb29f74","9ef508adee40f106af5da543ac881bee98966b5cbaa60f63357b505631495631","81757bca5afdb109f23b2b1ab2e08f434f626af25e986d2585973e2409a82e36","2f35432083547a52411b4b8128ab118601abc6a6e158a38894add0923255dc0e"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199173952 · entry 108e9186e8c5677a85d2…
Expected log hash: 3bc66074c7b0a853326bf5ba0590a111eee6455dac5c98c791c22eeea9a48920 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":"v1791689192448","kind":"published-quote","locale":"en","page":"brand:acrobat","quote":"Excellent Service !","rating":5,"review_date":"2026-07-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (ffbc979c8901…), 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.