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.

“It was already almost useless before the update.”
Apple App Store · 1/5 · 2025-06-05

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): 4461639107f41bada3344b0bde200da03e830c8ecb5d40422ea83b88bc24b304
Signature (Ed25519, base64): gMI09D1VOvUobWgdHfBGG3XDZH0bX1gItD6G7gO0zlVFzB/xzGV2+wXAmMxUlR+KY35efFwEIhJ88KJLB2BzAg==
Merkle root: 0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91
Merkle path: ["4459fd9a6cfbca4ca9177f31f91a81b3ce9f3df354f750bfc391e52046418d4c","1a06dd05ef8f3408a218a121473ebfa64d3db0e6248a673af7a78fb7ff04c22a","d1db67c9d0eb3bef4c04d8688c2b70803297d272dc06eb99949c13645c765e24","3d6ebfc73c5af5cf03151d45e32b7670b1a8dc30be7c604f668f1c8eca1286db","af7d9a152188fc21b5f70c48f51c393037ce4581d6642f4466898a41bd7d44fb","d7bfa7a049645e94bfb05dad32dfbb501136141afef539293b2ac6d2a3ed2811","b0e3082e031a87b46f279d3c8d6e25646b1475342a09c1eb33df3d42c188ebaf","922cacdc590d69d67e700374ee648f9108d8a1afc95f630daebb10371d2dd176","bc9a1b49f0931d11589a7e050640c7ced110a03f0f3fedfb20efc0878534a871","b22a336f6281a45be19a29476b473703da9f6d89ede1666bd2b92edda2672707","318d4006a783262943816c9e7f0a87f2e3b9446f37a29d502084954c6db92f2e","ab60dad2b9aa1b9609dc1fc956329593966c0f3a2e9ee9ad4ab4611e6c9f8f02","1287e5f962cd571f763d148889a66e1c7e5d80d0683082f38f7f966b33f27f74","d97c31a576cd351fb66ddffaddfc87228fbf93ecf06301d5b8aec9b37e0fda68","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":"en","page":"theme:sevdesk/fit/en","quote":"It was already almost useless before the update.","rating":1,"review_date":"2025-06-05","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id731738076?see-all=reviews","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.