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.

“der Preis ist fair”
Google Play · 5/5 · 2026-07-31

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 2541942774

Proof data

Record hash (SHA-256): 73d85200f99ab30fec7765ca954775937140760843419aa972e667abffb95f84
Signature (Ed25519, base64): DqioVPqU+cQN5UdcFks+va3UCYbAdnDuzMmxEafLkFP2FfiYgZdSMH1hWL0jRtVEUdFCtfmYnWd9YB1uNkQ2DQ==
Merkle root: 0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91
Merkle path: ["73d61c3c1dcb5f6e0ea67480dd0adcbad671c10cd96cfd603b7c5f2eaeace6b9","dd9a728ae9ee5d5762ba187159b0cd6b8f13e4431009b145b03b8bc34e1e9410","72d84c0af7036ca95ec1f30dffb40245506e7e15fa467532b90a2a951c7b780a","e7d7ebd53b033a6347d6cf21d19a74ad0e760914dd65cdf5d3af15db9bff4f04","3e458dfe188ae116089ea8f70053de2560b1036f75624f20413df5377e3d4977","ed79f9b3617bb4b75766d149b1668d7ee4ef6934ff46bf21983e456693546860","823007437afed4bf6081a0bf503c9d6e800147d44fc5989b9d8cf03d1987e411","5ab3e79054c4dd7f6f5157fca48d510bf4da3e1612b53857bb8c1ec26ee03b8d","7db8687ef829cdba854aba4b6681d63dece7a67a42ab4b47f5cf3a0af97ad9b6","247d8d5101374cf8d695bd338343f30f2e84eaa22d159d31b823cd57dc8ef66d","cb461d15bf840bfc06abcf50e48965ff049ee56752a11f3e710eaff2f4c213d2","58a6e6d87e5abc2ae84c16426ac7ae57aa4ee3dea4aa297d173e96c213dede34","bf9364c8f07cc31dde92e8fa9e328df950308aa505d76ce4973db2a6f71840fb","e612bf3863a4ca6db004d49df9b16b869da6bd7612ef55762e23c722f5ffdfff","31e60baa9fb8f672f686fd126d7dc82498bbfeaa38bc676e67691bf1c2c7c210"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2541942774 · entry 108e9186e8c5677ae0bd…
Expected log hash: 4825ba618d3c3368179be13912e101812df871de37f30b1ec256ca6d987713ec 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":"v1787277864570","kind":"published-quote","locale":"de","page":"theme:storytel/price/de","quote":"der Preis ist fair","rating":5,"review_date":"2026-07-31","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 (0fdf8a945cf3…), 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.