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.

“die App für mich völlig nutzlos geworden”

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 2514341362

Proof data

Record hash (SHA-256)

4dec61ba6a7adb8e189492cc3e9b455c7a3356da73a41c91b728090ff58cf781

Signature (Ed25519, base64)

JkAyHs4jCXes79tCldIEGAToK/cf7ag9uXJyZDkW/tYqKXECHcuPwuEeoL1VTMGFsAx9Mmu8KGkQbMUoSF+nBA==

Merkle root

2cd516e344e4be63e12361494ae610d89d15708131c24034ae0c7b134b8bcc53

Merkle path

["4df6ee35de586e839360554714e6f1de9d328f7f8b793fc7ff57f622fafacf9b","cd922df1e5bfc2fd2e29fb8eea3f37396ae2db7afe01a91ad8ba511fb594d15b","ad3a45b113e528a56edf2648082f2c475441634655249021504e9251ce2d43bd","a8a37d36ca5594172311730d4230f1035c10a29760599c8c97818ac269f27f9b","f58e56c66956055821dc00ac0030ec9cb2134936287ea0dda8e0831b1bad5188","0285caac4da7774bf7583f8c7abd42c9c2ceb66d768ada8360bff20d6984de15","bcc14ab52c64e75c8372aa311fe5863e4eaae278f658e3af532bc2393a49bc13","ab64ea9cef6b86c9f93762cc52e40d026fb84d198b5d9a5b47166eab2f7e0328","287fc2ef73673231e4caabfe6300d0b6dea5b7dd44724a1398c63c4b11ed94dc","c792428b4505f2608187892789a5ae6c23ab4c94d439e5e68a6e932fca7e4bda","f705a4e098b65fdbf075562c9eb6cc1ad249649529a563b07628da4fa57be133","52d650ce8e2e90f27a785074aeebfb4079219bf3d2a39188b3616b1263f1ba2e","9a12b68b30934371f086c30762f865c8d368b21c5bbb850ab6a93dcb853ad79b","223b4ba84a44374ab9643cd0f0caf0fb6697417054944b56228a22297574df64","22334ce08b4f33f031252a9b7a089423436312a37092b6e742f7471c7ed075e3"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514341362 · entry 108e9186e8c5677a67a1…

Expected log hash

81a850cd5c32c6b6ee86a2774571659cf829f205adaa17a6b9e9a6f5bef7642d 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":"v1787126744998","kind":"published-quote","locale":"de","page":"theme:sevdesk/fit/de","quote":"die App für mich völlig nutzlos geworden","rating":1,"review_date":"2025-07-25","source":"Apple App Store","source_url":"https://apps.apple.com/at/app/id731738076?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 (2cd516e344e4…), 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.