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.

“Sehr gut, weil es wieder funktioniert”
Google Play · 5/5 · 2026-09-16

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 3199014646

Proof data

Record hash (SHA-256): 384f8fb91f49bce31a9925915abf2b9af841d31fb43bf7820b4b7ce0ce082bae
Signature (Ed25519, base64): m8XHCTCYyLFkEuuxt9aokrSuesAUEJ/L9RzAYajme+kw9vkoaTuHQVVd4v2JxBmQALphTDU6R2P7Bc8jba/UDA==
Merkle root: 79268b3be1e951447ad916daa23d94d3a225505999279adfec84e5728be030d6
Merkle path: ["385547344e297c1bf6dadee94210f1bd36f72fbf99049e70760ce12d46828191","ca21966f4217816532dc0e4f09a805d40fc8153a3f4afc7b0136c2f7892808d6","edc1f0c991d1d164373ba112e809f3f716ca36f68bcf49185311c2fa7e9dcb5f","549336439c4511069d1431791c6653eedba7a31b3936ef4d7f5fefdd444effe2","e591400ac07b868e519e5d40c85059367c4fecafdab0317131aadfaf6f426411","996bc890beba7bed6c295dba8128204d4710aeafaf18bc9f1eccc431349ae75f","a3c62d644b78e221f6a7bc315f1a62a7fc53176acb155cd30d5726126911f807","d0812ad2cf98c96bff3a8c83b33e3c7d3ce6e71eaaa9bc2e6b6c4288ff5478ac","72302ad3a5535434d4b0773f557a5cfff103a21f6df5403cb2bc2e67baf12f73","cdfbcef4975961f78a55221aac6a64ddd84bdab30176a71ab6c65379df34bd54","a4d1ff2d819aaa70e4a72904f49d47077caf98f4a7e3424ae6a24222996c3c7c","74ec616be75d7ddfa42f796ae5ee64734ee2aef3c18f854d94e8278d3c2de665","ca0926b42bcdad354c17320adc5661c1a0407072f1d5c01424cc2e7f9a3515fd","b8e0a41590cdecf5ee846d5a4dcd3ae91c8a0a052b75fffe7c4c5f4e2ca53884"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199014646 · entry 108e9186e8c5677a77ce…
Expected log hash: 55430b734e4d00e4ba9c340c7ab064436f91281dd4cbc27c1ffc37d3e26a0e3e 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":"v1791688566698","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Sehr gut, weil es wieder funktioniert","rating":5,"review_date":"2026-09-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (79268b3be1e9…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.