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.

“Ich nutze Canva seit vielen Jahren professionell und möchte es nicht missen.”

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 2681429093

Proof data

Record hash (SHA-256)

15f4e0a007dcd67b495f2c8381ff39bea005bd7e29e4bcbfe9a30fe1dd8fa0ba

Signature (Ed25519, base64)

Ze9hzmDKXU8bmx/tU20qejNcRK/mIEBmvL0SN8fbZKsgqq3s4iynAwMJreemejpQWSiVEdROh9qnaehRq9ewAA==

Merkle root

49d75a7972dad7fc75a734f764cdbbaa106268e1ea0f657aa8c6fd89424d4b2f

Merkle path

["15f41c8b34bca543e3f199fae8d1ad75dcc7a25bb437bbeb5dd7263a685780d0","c9f9831e15bdd752dcd429c9ef823fdf2d0847f6c68ecd6f3dc2caac48ba029b","15efa67220bc9c7a047583f40a71b8c5a073ea45c32730d6046cc48f199f03f7","59fed6b0634708fdc927c1db3cab28942483e0d0886eddb44e748e935f25a050","3258481b24df0eded584c01c7bddb8d62b36c89d38e346a560bb8f25f0f05239","f3693565092b130123aa07a23ca5341e3ef46523f235f64b27cddebcc0dbd267","163b632cd580ff2577ee96ab3c5196eacbc252c11e03806d1996b434f3cc4fb5","01390f0dd939710d221a69bf21601c63381730c4899781bc22f2231ed36de5ce","e2d6b6837d2d325616b437a7ce3df0c98e9105633799c7ae47f696b483168f40","82495be51cd7e4b9c775d8353fc33c15abf2ba816a8229ad37af7c4476cd6da9","971a4137578717d4cf8b796fe2df4bcf346932fbf526bf7734db31a4e757bff2","9ad764adb090606813af8d981e25ae04fb555663f4dd61ecaf358a138629116f","f930e87d5846215d9d33cbd2f684fd0788c4b25eadd845d1575c3bc708e059cc","79d6c858c8d60d7d4fdeb98d50012f464859bd3437e8887f9a62b641664e5493","75fe8695ca709a884269711b05fbdac24cc3f8930abb9087723ce2c8cfa8fe2d"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681429093 · entry 108e9186e8c5677a81cf…

Expected log hash

89c17d1b707f92667072f2c7dc2ae2ebf8b7354f0952f06862b4ec01440c148c 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":"v1788303366831","kind":"published-quote","locale":"de","page":"theme:canva/durability/de","quote":"Ich nutze Canva seit vielen Jahren professionell und möchte es nicht missen.","rating":5,"review_date":"2026-08-04","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id897446215?see-all=reviews","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 (49d75a7972da…), 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.