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.

“Funktioniert seit einer Weile nicht mehr.”
Google Play · 5/5 · 2026-09-19

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 2913636507

Proof data

Record hash (SHA-256): 3c20f72230da647f48073f9aa68d7f51386f9f9be11ff06b8ae7b640728fb51f
Signature (Ed25519, base64): t80P0KboiDmYnqmoAkmFsW/x2UxbJkvsXd2cPiyDj9Gvlj3QySaFzAqbfPRqH7dRTSxfc5qf76IjOsiJNfd0DQ==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["3c22c32bcc00d54b346e10b4d2b76bcbc20da61346df2c0fe0b427dbdf3e1c63","71aa59043d0fb0f9a306dcd2ff5331b7b1ac88f5799ec5b0408fe69c55cf1b50","90d1fb494ef37eff243766b3e9e2d2296bbc594b973526d9eee99dbb3a877d1c","056d0d3ff61970d6c3e7f7b2e574f197d29046e8f3607495a6a0428faa341fbf","28b487bed3346ff2f82cfae60b81c84f9d13c6be459a6b2e422c9a19e703769d","82e4ebca98a79634c000b744d2ff50bfdbc08ea58af08d87d3a95769dd0bd9e4","d9d53b8ee9d8fd2ded141c3584333923f668ad50a9599f4a424cd02158951e56","d620412c7622240e7daf46f21db6ad5bd853139b0e39d49df23b86df7ced1eeb","a4e90e183f696246891a7e9bcce417bc312e94b6e8514d8de34e360d8bbc17d5","aaa80dbda8da565e8bba086ad7a2393e0ef1254a132b8f774e2db6b703b1ad9f","d50558677eb3b34fd5289f4b3a387bb41118ee6724c345daea7bd33ef7860d83","00a58474486d38878667c018eb810e71180b9858df79c82d171ce5b4f5fcd15f","5ef2d0b70398ea508e6c490819b91bf39069023f910bbf3a50f0ba400757578e","0cf751b4d000491c43eea40a33568458d763987b542601ca0644e491c0b04ce6","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]
Anchored: 2026-09-23
Public log entry: search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…
Expected log hash: 417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"de","page":"theme:spotify/durability/de","quote":"Funktioniert seit einer Weile nicht mehr.","rating":5,"review_date":"2026-09-19","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 (f26292e960b3…), 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.