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.
“Very expensive; they wanted about €850 in fees out of €2700.”
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 2948162176
Proof data
- Record hash (SHA-256)
95a9fdab9a5987c727c8d8b637ca9f80ef3a0e939b6bd4aad8da5a4f8e715c51- Signature (Ed25519, base64)
oPWFItz5iZ++NkoNSMaLILVBe4m5G8Jb1kEOcqT+gCU3ZGFVq5SJ6C20VWnTGZnvWuancq05ud+UobhXOvBjDw==- Merkle root
5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd- Merkle path
["95ae0a8bed604dc12d9f5cb51b1843c24154ac8ff23cabec6fb05a3be49e0d8d","7e4f32053b8cab7dd026de378a11927b57b5b8a1328ebcb10cd34072b75e5b39","79145129ad4eb27cc3bc5df38c32b6ad7aff5db02792b36ef934e2670e887516","aa8a64fb9a3483f2ffe8bb6295b0364f32403f9f4c59fb6d1353c7bd5742b5a1","9b3a89dbe9c4ae92623ab7d023ce375a9a507c4a92e3dffd0951535b7db30855","4ab73a535c18d38b715e4f580b462a2352da28bab025f35c433ee25558cf2bb4","0f706c3e85b41613fa139591b68541d32665ad0bb7f798014072a74f4cf97816","e203d845a04b542c81b79bd0ba5793a49b89f0457afa3576ee2959b1958323fb","d82287e567ec385b8f1f1e2b9c538720604dfd16ab9544cf8615f3e63822d265","252bebca477cb297786b72d64a9b16e3be70ea63c5d12408a686a5086cc028be","04ea073d1ba0017558b64e075dacda8359dd875e68d419ec16e85254acfaa64a","57cef6631396d6541da6e13b3470e6b8a464094ab53c852077db03ccc58bc7b3","cf100015419b4e08a8d3e2de5cb23ad7a262130bd3e6bdcccfa47329e90a07c9","468adf75cd56eeaa89e39f50b974b405db9921529d680bbe88ff0d1caae6f316","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]- Anchored
- 2026-09-25
- Public log entry
-
search.sigstore.dev, log index 2948162176 · entry
108e9186e8c5677a61d4… - Expected log hash
-
5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81beThe log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1790226990092","kind":"published-quote","locale":"en","page":"theme:zasta/price/en","quote":"Very expensive; they wanted about €850 in fees out of €2700.","rating":1,"review_date":"2026-09-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.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.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (539721061967…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis 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.