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.
“Das Angebot bzw die errechnete Rückerstattung wurde kostenlos erstellt und transparent angegeben wie viel € sich Zasta davon abnehmen wird.”
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 3273342496
Proof data
- Record hash (SHA-256)
41077cbe2f432c8b7b52de841c506f7fc66b4342da5abe7c5e25e1fef90911a3- Signature (Ed25519, base64)
KHWiW1MoSyjUifenO7MsA1uW2FR9Xsxfat1cQSVdRYzufq1wZx7M9MhQUQVESaSLhe/GA//IS8X3K+jd3WxRAQ==- Merkle root
a6a2b4c9d7d1eafa4a3ba3595aa08f11c105165de84940ffc059f837c445104f- Merkle path
["41211a7fd654b268ff93b1b83baaec4ecb5080809835aa0253cee98d72620578","2f5955333c90addd4ed7934e632e852039c2ea2a8776928fa786a6a42ece169d","72eb277d2caaeef61c9be39508c077b4d0b2b2372331196e170e4492d8ba56c1","5ee095ac94d4677c13cf47d143378c24465ed75c0883e16f397b692747dfc043","0a4a69ecc70e3e6d42d900c0977226f1d832e5031ab9c282eb81ce0752bd05d1","c04a464f70d8359b5f4667d831d082a6e301d3213f960ae823d0bb0a8497c85c","ad2279d2044a1ecd04aeba1c4a44eb6eb9dd9ed32035acc180bc6342442d5adc","216410d79e2d5acf0ac1a815d35f40f49d4231a0fdaffe45c4f1dcf50298883c","1388c350b76ce6cd8424321154a64468f8981de7d540f9a79c4cbdbb439bc862","62c8912b61418e471d9173a683ccac8eb70c3c1e06f8aacbcb58489aee8e168f","bced1a37bbc0af3d8e952a7c1ec7b33a02d84014ccd248303a3b792538a7088e","9673acbab717662371d7b102fec46b7d359ed0f02d02ce5d555ae75d9c60af2f","95302ff16156d5e277933eeb7a8aae0bcc9cd9ecc1e7491c1aab462ce098abfe","d9b9cce27629bc902030340ceda068fb90d53ddab20309d3b3d8bb3949c170f2"]- Anchored
- 2026-10-16
- Public log entry
-
search.sigstore.dev, log index 3273342496 · entry
108e9186e8c5677a66d7… - Expected log hash
-
8a8ea4260f3039926c3342603d4fca7ca9e5c627d841ac1c7142e303a049d0c7The 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":"v1792122420855","kind":"published-quote","locale":"de","page":"brand:zasta","quote":"Das Angebot bzw die errechnete Rückerstattung wurde kostenlos erstellt und transparent angegeben wie viel € sich Zasta davon abnehmen wird.","rating":5,"review_date":"2026-09-16","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 (a6a2b4c9d7d1…), 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.