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.

“Ausgezeichnet, werde erneut abonnieren”

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 2621780523

Proof data

Record hash (SHA-256)

0ade0f0a4c958f67cc72f6184458baf05f9ded0660d4891a996f551f0ae164e1

Signature (Ed25519, base64)

ey4yk6iAZKjcoIho61GyX2NeOe2heYPCZECnav76xJ+N+HDwC4Xi9r9Vq69QjGr+gDO0d2CDbB4VyzP4Dt4SCQ==

Merkle root

7b426d9a8e4778c60509753003c7b551184ce3f76e1db9b678c604656c147d81

Merkle path

["0adc0446c12d54eabe40d00e5e18b9657b01bf386659318f31deb7b47d180f1b","f948af1b4f3565e793f2e1383403f7db4f3173a51266132331bc29113eadcece","90a7a5cfcad11043adc8505ccd12bdc2f510503a16d4eca4c1f5d44e27263145","0a2ec7a20cf801409bab832a41ec67db002a312d6acb530b171f6e08a67db3bd","1816784e9642d503d65c13609b0c1fac04ab8df8924f678b514457dfb9cc4753","528ed61266a4ec3f04fb704fe56903e840067c93f9f83a945c7fcfa8510cc153","40acfd3d5b0bae8a86d4e2a357121e92c14595b02b9f90d3929ae59060c03968","a70fdb758eab9cd65ec28f2b17b569e5d5f0c833f8bda8707727815c89cf9f77","ad2a642f2f689220bd07468df3bf849211c2101677b3271ef1c719aa8c3dee25","5aca3d4f925c4e22cd175b0e63d43018b374d628ef089b402a817eaef589c430","97ea7b1906ff12fe455081e99b98c5d879a777c5b041935daf55f3522f1fd727","e31d08beab788c5204f71c66f1aae19ccd2f41215c44b660d35802a0ef79d3d2","5d99da9744e8307e1a97e2467f68825a2078c23dcc4b995c9e783f8caa323115","9116af6fd18052ff80cfd3abad6fc438171b3496be1f90c0fc1ff476ae16bd31","6fe79142608c1fc8bf2fc6f4e46810b02dde5a2430135fbb3f3615b6e79ae38a"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621780523 · entry 108e9186e8c5677a0666…

Expected log hash

8cedab57a40119bdaca7f2b5c6cf9bb1e2c3e69dc6a6b7339d16a6592c70750e 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":"v1787891923870","kind":"published-quote","locale":"de","page":"product:smallpdf/sign-pdf/de","quote":"Ausgezeichnet, werde erneut abonnieren","rating":5,"review_date":"2026-02-04","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/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 (7b426d9a8e47…), 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.