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 small widget no longer works”
Google Play · 3/5 · 2026-09-20

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 3240367269

Proof data

Record hash (SHA-256): 3bdfa4b2cc787bb703400df338b95282a7fd405ec901906e385dcb6e30a31082
Signature (Ed25519, base64): UnubBX4hAy01CRPh4KSG+hIn/bLX5Mkgsuro8uPdMD61AcmxnccwLIOukSqtdK3eZvWp8QULcCSwN8u3+DT1DA==
Merkle root: 1da6cf8d96c8876e66e82e9bea7529c76d7e25eda1c07550505caa1baa49c4d1
Merkle path: ["3be4bbfd079b44b354b0c26e71e152fec2564696b26ed078aa05325bc2a2a57d","e862b20090e0414b6215cf4a5a220e82713d3b200418a4f1d554049d0c63b84c","0de23e47b488f2cbd187e50d9fb263fd5c06c10d4a6c48b6ba876c3f0cdba1a6","98999cdc3023c2f6fcfa984076cc9d0d3786160dc750afb8820274b2bd771071","cf1ff085392a2ce4ecb899dd15c2915fa1506d7381c1e37d9339d97bd8c284b9","837c2d0024ed4cd96d9d8c548b319c4133a2028ac45f5333b39271b738c27010","e50d7eaabd59628bdc92bd5b28ef1bc1933242aa77c2a9609f88fbfb323f28eb","6efae666eeeb5935c80e6cee5c489f31bce77e8394a59cac87825a99bb07c419","4a84e8198e9f1b52a017096e54b9b47e1b9a62420f2bdb278be3101feba760ad","10220bd977867961d6aeca8e82bf8dbb5c5e1ff90038abe6a1817aa962e566f9","dfc09c55fdd73fd9afc70e4a018b52e543445810cca0a8f4cc14655c40e09b22","994e6d7ea103100577c4cab0d6712d9ad97559bd32eecc5785d3b2bf668cc0eb","d0886e619546ab8e630cf9041b21d39a146861d5b7598b5044808c3537212a80","2d81003ff1cd2149e42eace973cb0f4cdd39b653f7b06a20804a1f1025023ebf"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240367269 · entry 108e9186e8c5677acf8a…
Expected log hash: f6397ecd2b8639a3c60345d0c567eb602411c7eb1bead248c760bae850816087 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":"v1791861381931","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"The small widget no longer works","rating":3,"review_date":"2026-09-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (1da6cf8d96c8…), 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.