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.

“Diggah 17€ im Monat für mal eben PDF bearbeiten”

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 2514188040

Proof data

Record hash (SHA-256)

66c3c323d0cfea3868e3539f358da76d4345c646fb2019c8a29fbaa9c43b9c6a

Signature (Ed25519, base64)

Oc9P8mJgX0/ni5hySoGUIjcGWNj6CbegjlDSmu84oRZA9vipo9vpjWZ0HluvDzQTOyTjT4Gwpc68WbvYfZbHAQ==

Merkle root

6189a42bfe294c4034f316d047a716a5efecb511b8dbe64c4f7f543872c9bcee

Merkle path

["66c791681bacbc4315436978a23e305157093f95d8ab82c52029adb3e901798d","b3b55a6d912fb3c70485f757f4efa03a2b7068268378d6c9427b0788f0b87d5e","8ae3aa0499b461ffaf3549e9979062b40f88abf15503a5dc953f3e539acf6bc1","a734806e6d1335f67cccf8f3952b8f6e88362a854e234f37d77676e8214f25ea","5245f10fec8690afac1192c5c2edb2adc032484f2af50273f99fce245d71edf4","3803cc2e7e9d33cc9eb7c9d5507ab453f2c2fd8fb736840be90c10a8ffaa81b4","7bba8bc0baed0902db50d40a5ca9c81fc6daa19ea8b29ab9c9e70a1b2f6dbc75","01c6935d635c8f868c7608c8d13c007f788513b18c395f1820027630e3ef9f6d","a7faf96e6a3e13b8780abb27b6a1a5fccd953928186fde90dae1909ba7919a9e","ea91c22bf5b7cef9e1b26f3c8dcf6288b3220c3e505917baf87d46b59d9a542c","c52fd4024e958de2e8dd4459e9bea3f11ab289d15937e14245a634b71c960945","fe7f476da297d61cdab645b6310135c63fe8408e5adebc82290280e55618d546","c8bdb6f44b6fa1ffbc76cbd7bb8bbcec4d6cde88e65e58d7ec446a36de9d7be9","67223d7a85c1115e9dde948af20504ca3bc62c9ea97637792b53682f25f6d8d4","e36acd56aebd26af88e4e41e8d5bc2a1389f049dd914bc2c3da8d68ac2fede4b"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514188040 · entry 108e9186e8c5677ac9bd…

Expected log hash

b0fc1d11450dfeabf778635bd8a8264987fbb7e682331541ce1f5d7507d4e862 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":"v1787125125654","kind":"published-quote","locale":"de","page":"product:acrobat/pdf-editor/de","quote":"Diggah 17€ im Monat für mal eben PDF bearbeiten","rating":1,"review_date":"2026-07-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (6189a42bfe29…), 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.