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.

“I've been a member for years.”

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 3240231023

Proof data

Record hash (SHA-256)

5375de8c1b9dd24c2fe486ea29be962f5579ee20fb019c0c4d9e29b14807474e

Signature (Ed25519, base64)

jMvyft7AQI/9eRRHQC/2SjEkwUUVF42GZ7qLQe4Aq7lv+Dcr1nXH/3+qi2hW3RgyPMfbYOAucbg4WnGkmvGLAQ==

Merkle root

888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84

Merkle path

["5379f08c2a5d490c833a29bac926725994d94fce92c246e4c9dfa5ab6935dd6f","449f1fac239a1a1fb26a691e652257180a28a31c6bedd75951d50eda7e0b811a","07f0973ed6667d193f472394de0d625431dffbcdad20eb2a1f92456f003f9bc9","15a092acf2fbf4bc631f36e2d63b84c45b894789e712751a8cbff36c9fe987fe","529c5b378c559d7d0f42f67e59664e5add8591b20f4600b23f97019e457cf37e","9791c216034c49b2b505b74f6feab54ea94ccb5504bc462ce2873b23b7d1b630","bcb563ba0c634d72415860ed20485d086a48d16049c2fd80c2366265942e1668","33aa481eaca21b606e31515cc100121960558683de17ed104fcc7a924ddfb267","408c4fa42ea78050cb3ee9a658419c3c007490404a8ebfc665a6d82266176d70","a0c12385fbd07529f73a74d44e8c60f38b4b3c20079e32e273491c535be9eae5","83db607e433fdfa67c0c3cdd2e09a24b4773b7db253781d62b43893cfe854418","cfcf82b47bc6a006b7c11e5183fbaa666e00ea4d950e64e1f574bdafde8e1583","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…

Expected log hash

bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 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":"v1791860805798","kind":"published-quote","locale":"en","page":"brand:atupri","quote":"I've been a member for years.","rating":5,"review_date":"2024-11-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.atupri.myatupri","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 (888a38c73939…), 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.