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.

“Standard programs now cost extra despite paying full price.”

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 3121353835

Proof data

Record hash (SHA-256)

fc84bd7f4de87e8d5d40daaf55649f638fc8a65a3edb7240c11d8dc12baa2440

Signature (Ed25519, base64)

aT7HDNHjoD6zQF7ukiQ2xtQJHnLDyDQYODIYM3N2lgaiiyq04JzDwQd2UzvFjxsTdyxUZ6OhYurixSbTHK1pCw==

Merkle root

1128c1e3e4534f30e1f8c2f8fc1f60db99ca4dd81f25405dfff62ff1f39e22a6

Merkle path

["fc8400b36dd39326cefd31cf75bfb04498ac972229410d141f7fd630a5965096","1109e402ecfc08b5a60fa721a7e371ebff8b210a51bb18cdb03a400343bbf3bc","c2ceaae209f8bed8c44620b9fa61f36f04cd302440b4986882309786cf82d6a3","4eacf86729eeef43dcf1fc2877f51f5e9ec76eafb6768198111268070e264acc","1462c620820b877ee2abdd4bacb6035016d83a039b7a64e790b77999a2a916f0","73305f24b43a4e4420c289bfa98f14fe4150eddf4686d2fd865bdb0a9306c156","07b257de54f81124bb4e99795644f7ec2773336b61c6404c62cca6b99f4c6183","2ec54059f7257f83c7389e8dcfb1b23899eacaa41d0886d035cf28464d3bf6a8","2bce68989ba29ea60e689b02c6e05de87a0f310784f8c1d725d8f7192b7aac23","654434bc0759a25e3e0485980743a80254ea23a936bdba95c55fbc85f48313e2","c31aa9f4134390b3e2dc66565d83aee421577b488a71d0f980c0c4b3abe171e9","b0c646a12cf4bfce2b9f004a1db0b491dd07baa76d3d6f2f739b7044b42f8eb8","814e31f10d1e59dae138f8e35098136c11b33d0ecdbdf6bee257a77429b73184","0f1ba71c060deedc77d8566f04d4f91c80878775c47405bff7bedef8fadff3b3"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3121353835 · entry 108e9186e8c5677a938c…

Expected log hash

3980f7151edd7b0249ea159b11c34712cba10d59cd8ffa603af676e538f81cfd 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":"v1791338675665","kind":"published-quote","locale":"en","page":"brand:v-zug","quote":"Standard programs now cost extra despite paying full price.","rating":1,"review_date":"2025-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.vzug.home","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (1128c1e3e453…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.