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.

“Lately I see more and more books that I need to buy, but because I have a subscription I can buy them at a discount, this is a total scam!”
Google Play · 1/5 · 2026-08-07

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 3199295725

Proof data

Record hash (SHA-256): 1b5f8f66991154d2e92192a125fcc9859225f21069949285155d97cc9b86e99d
Signature (Ed25519, base64): KUfnopPSqqG/YgX1lwJAITDI17YGp9Brbj3zzZsRwld3Je932rk8446AUKbrYymkFnY2+q29qRoPZi4b/Dl5DQ==
Merkle root: cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e
Merkle path: ["1b5dfae56528afbbab8d1cf149274b68c88d62856eb817bc2641d56b4da158f5","8b32068ca58c72db15e122a12f0b9f7759ff483297ec7cd0c29b353e4010d694","95f0e3fb195921280ab10c29206ed80d33f763ad2a250647f22037d2989d488d","53a3857391c7eb92278bf722225dea91c7429a1451f1c40d4a779df8f400112e","b9b5ef7835c8cdd0acb25b662e55a20582e97df4d89a62862d111712abb364e6","9d2b20e60fd4bb35d49530b82d6f58399c42aaf2aa94ab591ac8d52f2f36cb37","7c854de42d799d142b01c9f334021c5ea75386d63c4faa3942b0de0e312a0c83","165c060c52e96e58edb7c209ad87d2cbc4b36c015e4e606d78570a6573104af7","5e4b248e270ad6a69a18f522240754daaf91d937d6bc950a193bc7b125fa2e9c","0ff83d6c8422d2fabef172bc0bed2461c536946c06f2f535dccb0e581cf89989","11e9097331bc857239ac2499b714bed271799a50a561a79619dc3bfa39226b52","00bde2dc86f5cdfda03d921fbc10cb6775a4a59f43762c9de3e415a772960ad7","67ef19118472e8cea8d8f9c7960df416625b46d91fef63f2cb0306cda5833746","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…
Expected log hash: 59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"de","page":"brand:storytel","quote":"Lately I see more and more books that I need to buy, but because I have a subscription I can buy them at a discount, this is a total scam!","rating":1,"review_date":"2026-08-07","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=grit.storytel.app","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 (cb5472fa7b7f…), 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.